However, if they're using some other carrier or rolling their own VOIP setup, etc., or sending from a toll-free number instead of a shortcode, there's no guarantee that their particular platform will honor STOP. And there's no way for you, as a recipient, to know which is which.
Generally I will reply STOP if it's something I know I signed up for but no longer want. Things I never signed up for just get reported as spam and I don't reply.
The STOP keyword is mandated as unsubscribe at the carrier level (Verizon, ATT, TMo) not just the vendor level. So if you reply STOP, it's very likely that you will not receive another message from that number.
This will be true for any programmatic SMS vendor. There could be smaller scale & more manual approaches, but that would be rare.
There has been a big effort in the last year+ to clean up the space and require consent before any SMS is sent.
FWIW, somewhat surprisingly, my google pixel has an amazing spam filter for SMS and I rarely get SMS that I don't want.
What I want to know is, what's the purpose of those random texts that just say something like, "How's it been?" from a number that I've never communicated with? What's the angle there? Anyone know?
My understanding is that they will pretend it's a wrong number, but then make a joke or talk about some innocuous hobby and try to build up trust over weeks/months to eventually phish or scam you. I forget where I read it (maybe reddit?) but there was a poster who mentioned a personal experience with one such scam, basically a fake romance scam that led to them losing tens of thousands of dollars wiring money to a fake person who pretended to have fallen in love with them over weeks of back and forth texting.
It doesn't have to work on everyone to be profitable, just the once-in-a-while lonely pensioner!
https://consumer.ftc.gov/consumer-alerts/2024/05/why-its-not...
I inadvertently replied to one of those spam messages because the number coincidentally matched the location a relative had recently moved to (I figured it was them trying to joke around while informing me of their new number, it was something along the lines of "Can you guess who I am?"). They replied with a picture of a girl and some question trying to start a conversation. So, I figure they're just fishing for easily tricked or lonely people to manipulate into sending them money.
FWIW I didn't notice much of an uptick in scam texts/calls after that.
Unless it is political
>I'm Alyssa. are you the equestrian instructor that Tina referred me to?
>I'm very sorry, I just checked the number and it was my assistant who sent the wrong number, I hope I'm not disturbing you.
>Thank you for understanding, you are a friendly person, I have found the right number, your number and the riding instructor's number are only one number away, haha, it was a wrong encounter, but it was a kind of fate. Let me introduce myself, my name is Alyssa Chow what is your name?
Also got it from a "Lillian." I do hope they and her assistants find Tina's equestrian instructor.
Also on a side note, the scams are really horrific. Although obviously scams I can imagine especially the older people getting tricked with "hello grandad here's my new number". Makes me wonder what I'll be getting tricked with when I am old.
wonder if STOP will work for only the same number, or globally.
I also know political messages have lots of loopholes, thanks to the politicians who create the laws.
It's well worth the watch, but tl;dr: it's a long-con scam. They invest as long as it takes to establish a relationship with you, and then engage you to do something (crypto mostly, apparently) involving cash online. They will say they made a bunch of money, and point you at the super-easy online exchange they used. You buy the crypto, you see the crypto increase in value (because it has in the real world) so you buy more, and more and more.
The problems start when you say you want to cash out. They switch from "buy more, it's going up" to "there are fees to withdraw, just deposit another <whatever> and then you'll get the withdrawal amount plus <whatever>" and of course no money ever comes out.
Oliver interviews people who have lost hundreds of thousands of dollars this way, some of whom still believe that if they just toss in another <whatever> it will all be resolved and they'll get their money back. It's very sad, and I'm not doing the video justice.
I still get notifications for these on my Pixel. I just don't want them.
Some people are seriously lonely - eager to pick up any chance of real interaction. And those scams prey on that.
On telegram those spam usually comes together with a profile picture of a pretty women. With text only, it targets the imagination.
Is that just for programmatic messages, or all messages?
I could see problems if it was all messages. For instance suppose a relative coming to visit for weekend and due to arrive around 5 pm Friday. You get a text from them that afternoon saying that there was an accident that has blocked traffic and police say it will be several hours before the road reopens.
They ask if you would prefer that they continue as soon as the road reopens, which will probably mean they will arrive around 1 am Saturday, or stop and spend the night with another relative who lives near where they are currently stuck, and then come Saturday morning which will get them to your place around 9 am.
You text back "stop" to indicate the latter option, and now texts from that relative are blocked. Oops.
I only recommend responding STOP to short codes since there's more investment and vetting on getting a short code. Carriers will intercept the request for TFN/local numbers sometimes but I don't really trust it. These numbers are all going to be spammers buying pools of numbers to churn and burn. They'll just import their list into a new account if it unsubs.
Oh and btw, it's actually easier now as a spammer to tell when numbers get burned. A few years back when the CTIA handover on regs happened (and sending costs went up) the carriers finally started to respond with the delivery status of the sent messages. Before this they didn't respond and you only knew your provider delivered the messages to the carrier, not whether the carrier delivered them to the handset.
I report their spam to twilio, but twilio claima they cant do anything about spam from their sub
There is a tiny bit of vetting involved and you've got to be a slightly larger account, but it is possible, so it's not safe to assume that if the message is coming from Twilio that STOP will block them at the platform level.
Also, the provider relayed the STOP to the last of their client that reached the number, they had no way to trace it back with 100% confidence.
After over a month of troubleshooting, it turns out that I had sent "STOP" to that number years ago on a different device (no longer visible in chat history) and now had to send "UNSTOP" in order to receive the phone verification SMS required to sign up for the service. It was a shared number between multiple apps.
Phone numbers are exchanged a lot and repurposed. Most providers/carriers will likely have a do-not-use-for-x-amount-of-time bin to put newly reclaimed numbers in, but after a while, it will always be re-used. hence this kind of issue can happen.
In my country there's a place to register to disallow unsolicited marketing and other types of messaging. That's not by number you 'STOP' and hence it won't have such effects. A marketeer/sales company is simply not allowed by law to dial your number for sales/marketing, so they have auto-lookups to that registry to prevent breaching the law. translated, it's the 'do-not-call-me-registry' :D aptly named.
it won't stop phishing messages etc., but not much will. if you'd block it from 1 number, they will just use the next number..
Even more annoyingly, politicians wrote in an exception for themselves. In combination with the way campaign finance works in the US, this means that if you've ever give your number to any political campaign, it will be passed around forever and you'll have multiple politicians begging you for money for months leading up to every election. Each individual campaign/organization seems to respect 'STOP,' but once your number is on an e.g. 'Has ever donated to a Democratic candidate' list, there's seemingly no way to get it off for good. Thanks, Obama. (I gave him $50 in 2008.)
Since (it sounds like) this is talking about blocking and unblocking the flow of messages from that number, using "UNSTOP" (remove the thing blocking it) makes more sense than "START"; particularly as the latter seems to imply that you're asking to immediately begin receiving messages, whereas the former simply means to no longer block the messages.
Thankfully, Gmail catches 99% of the spam emails and my Pixel phone filters out spam texts and calls. It has a built-in Google Assistant mode that screens unknown callers with a robot voice picking up and asking them to describe what they're calling about. Most of the callers just hang up as soon as they hear that, and if they don't and actually say they're calling about so-and-so candidate, I just click the block button.
I tried to switch to iPhone for a few weeks (for iMessage), but the spam problem was SO bad (even with Robocaller and some SMS spam filtering app) that I switched back to Android. Google's spam blocking is phenomenal on the Pixel, but they barely even advertise it. It's an afterthought for them, but a lifesaver for me. My phone would be completely unusable without it.
----------------
In the back of my mind, I keep thinking it'd be cool to have an app that automatically looks up whoever the candidate is running against and automatically donating 10 cents (or however much) to their opponent every time they spam you. "Hi, it sounds like you're running in District _____ against ______. Because of this spam, I've donated 10 cents to your opponent. So far, this app has donated $1,234 to your opponent because of your messages. Goodbye!"
Our government is so corrupt and broken they're never going to fix any of this, so it's up to the technologists and market incentives instead...
It takes advantage of a difference from regular spam where there's nothing the spammer would dislike you to do.
The problem is that once they identify you as voting against spammers it encourages them to false flag spam you from a PAC that looks like it supports their opposition.
It's a feature that's good enough to warrant me replacing the otherwise superior Xiaomi dialer/SMS apps on my phone with the Google ones. I don't get the screen calling, but all the other parts work 80% of the time.
I gave a few small donations and foolishly didn’t use a disposable email address. That was over four years ago and I’m still getting over a dozen spam emails a day from candidates I have never even heard of.
Maybe there is some central actblue list I can opt out of but I don’t even think I created an account with them
Never donated a penny since
If I don't reply "stop" to anything, it seems like one day "Retired Democrats PAC" will suddenly stop sending me messages and "Save Democracy PAC" will suddenly begin, and that pattern is what makes me think a single group is behind a lot of it.
If I do reply "stop" to one, of course they will stop from that PAC, but a few days later another one will always pop up and pick right back up.
Every few days I send out a mass "stop" to all of the numbers I've gotten messaged by, and it usually gives me 3-4 days of peace.
In the 2020 election cycle it seemed some of the texts had people behind them, so I’d reply and told them if they kept texting me I’d vote for the opponent out of pure spite. That was actually quite effective, but did have to say it to a half dozen people.
This time around, I keep getting texts asking for $40. Most I report as spam, others I say stop. But it seems these lists are distributed out far and wide, so removing the name from one, or 10, doesn’t do much.
Like you, I will never again donate to a politician and will encourage everyone else to save their money. No one should pay money to be harassed. I’m not sure how they think this is a good idea or will win people over.
I tried sending Goatse back to them, but whatever text spamming software they're instructed to use doesn't support receiving images, unfortunately :)
So thanks for validating my decision :)
I wish we had something similar for phone numbers
Super-throwaway email addresses in the terminal
Is it an optional field? If not one could practically enter any digits or can one get punished for that?
The credit card input screen was just there to make you feel comfortable consenting to endless SMS texts for life.
As far as I know, physically mailing a check is the best way to avoid sharing information as you only need to provide your name, address, and employer. This information is the only federally required information.
They sold it to a liberal political group, who then sold it to an extreme liberal group.
I get dozens, sometimes hundreds, of spam emails, every day, with the most batshit insane messages. It’s especially bad, now, with the US election coming up. The one saving grace, is that it wasn’t a right-wing group. They make the ultra-liberals look like a bunch of teetotalers.
Since she used the iCloud.com variant of the address, I simply nuke all emails that specify that, as a destination. Apple won’t let me block the domain, so I have to apply the rules, after they fill my inbox.
Sometime in there, one of the spammers figured out that icloud.com will also receive iMessage texts, so they have started coming to that, as well (so far, it is from legit political groups. I don’t expect that to last). I delete and report as junk. I very rarely respond with STOP.
- stalkers and trolls live off reactions, both positive and negative ones
- spammers will use your reply to verify there's a human at the other side
- colleagues and friends will hate you because everybody thinks they're important
Replying only has negative effects. Use client-side filtering, kill files, blocking functions, or ignore the text - whichever fits best.
For real spam, sure, but for semi-legitimate spam like real businesses and political fundraising, I'm not sure this is actually true. I have found replying with STOP did reduce the volume of political spam I was getting. I think it makes intuitive sense that they should try to respect opt-out signals: you don't want to piss off the people you're trying to appeal to. It hasn't entirely eliminated them, but it seems to have been more effective than Junking them.
Could just be coincidence, of course. Who knows.
I don’t distinguish anymore. There is no such thing as a legitimate spammer. If you contact me without my consent, you are at best a nuisance and at worst a threat. You get marked as spam if E-mail, and blocked+trashed otherwise. I really wish SMS and iMessage had a way to mark senders as spammers.
> NETWORK MSG: You replied with the word "stop" which blocks all texts sent from this number. Text back "unstop" or "start" to receive messages again.
I assumed it was from my carrier (T-Mobile in the US), but now I'm wondering, as I have gotten different replies from other numbers. Maybe it came from the sender's provider? Or is just misleading.
It’s the same with texts. They could filter these in a more useful way. Also, IMO, I shouldn’t see a counter bubble if I filtered out/missed a call that went to voicemail. I’m an inbox zero type and having bubbles means there’s something that needs attention. Spam doesn’t need attention.
I found out which provider was sending the SMS and contact their abuse line (I would reply STOP but they would just send from a different phone number) and got the name of the customer who was sending the messages. I then contacted that company and got them to blacklist my number (they were a company for sending political sms only, I have no worries about needing to get an sms they would send).
I now get 1-2 political spam messages a month, if that, and I’ve been too lazy to hunt down the source of the few remaining spammers. It went from 2-3 a day to 1-2 a month, huge relief.
I’m not saying that’s your problem, but it’s worth checking.
To look up the origin use a website like https://www.freecarrierlookup.com/
Then you can go to that platform’s page for reporting abuse or spam (find via search) and fill out their form. Sometimes those platforms will say they can’t do anything since it is a different platform that isn’t a direct customer but yet another platform, so ask them to name them. You may then need to find that other platform’s reporting page.
Just be aware that after all of this, you may not actually fix your problem. Some of these companies seem to repeatedly send spam because they have customers that just perform the same abuse from a different phone number or different account with that platform. That’s why the reports to the FCC and FTC matter, to investigate platforms for broader issues.
It's really bad, and to this point is just something "everyone does". So it just immediately gets deleted and reported as junk and I move on. The bigger question for me is how effective this type of marketing actually is because I can't imagine it is.
If you ever get a suspicious/spam text, looking up the carrier is a good first step. Most of the garbage I get comes from VoIP numbers because they can easily spin up disposable numbers from places like Telnyx or Bandwidth.com. That's not to say someone can't be using an actual mobile phone, but usually it's coming from some VoIP system.
It uses iOS’s SMS Filtering framework, which does the filtering in a privacy-preserving way: https://developer.apple.com/documentation/sms_and_call_repor...
"The developer of 'Bouncer' will receive the text, attachments, and sender information in SMS and MMS messages from senders not in your Contacts. Messages may include personal or sensitive information like bank verification codes."
This doesn't scream "privacy preserving".
Thanks for the documentation link, I was uneasy about using this type of extension.
I suppose they could bundle a more advanced rules-based system, but since there's an API for user apps to do it, why not leave the job up to them?
Here’s a local keyword filtering app that works great: https://github.com/afterxleep/Bouncer
The undeniable way to stop spam texts is to litigate. You’re put onto special lists at “number reputation” “data brokers” and the texts magically stop.
At up to $1500/violation, there are a lot of lawyers out there willing to help out with this.
People here are saying that doesn't work on political orgs, does it?
Whitelist does.
Perhaps reputation-based / fee-based systems as well, where an origin number (or network) has a given reputation, puts forth a bond against abuse claims, and pays a sizeable penalty for each message after the first (or perhaps some n number of claims) on which an abuse claims is placed.
This is effectively the Metafilter mechanism, in which participants pay $5 for an account. Payment mechanisms are flexible, third parties may sponsor accounts, etc. On abuse that fee is forfeit. Casual activity is unlikely to trigger this. Malicious abuse gets expensive fast.
The reason for permitting a few freebies is to allow for services such as mailing lists or other mass distributions which might find themselves specifically targeted. What's being tested is the capacity to rapidly address any claim of unwanted contact and not repeat it, not to simply penalise each instance of abuse.
Again, the really bad spammers are generating millions or billions of messages per month. Not a few dozens or hundreds. Those are the key targets of countermeasures.
E.g., "FCC slaps $300M fine on “largest illegal robocall operation” it’s ever seen" (2023)
The fined party made "more than five billion robocalls to more than 500 million phone numbers during a three-month span in 2021".
<https://arstechnica.com/tech-policy/2023/08/fcc-slaps-300m-f...>
1) Turn on filtered view on iMessage
2) Actually report the abuse to carriers. iOS makes it easy, but it seems pretty ineffective because the abusers can just use another number. But if you complain to the carrier directly, then they can (hopefully) remove you entirely for that shady customer (and possibly kick them off). Here's what I do
a) Go to https://www.ipqualityscore.com/free-carrier-lookup (or whatever site you like, that's just the one I found)
b) Type in the spam number
c) Find the carrier name
d) Google the carrier, go their site, and find "Report abuse" or something similar
e) Fill out the form. Include your contact info so you actually know whether something is done or not.
It might be true that I stopped receiving texts FROM THAT NUMBER, it's clearly the same organization spamming me from other numbers. Whatever. I'd rather get spam texts than robocalls.
But in my experience, they do actually slow down if you reply STOP on all of them.
[1] https://www.gov.uk/report-suspicious-emails-websites-phishin...
# Political Robotexts
If you are receiving texts that you didn’t ask for, report the sender by
forwarding the texts to 7726 (or "SPAM").That's still true for both email and text messages.
Just opening text messages can infect your phone too. In one case, iphone users didn't even have to open the message (https://www.bleepingcomputer.com/news/security/apple-zero-cl...).
There have been similar problems with outlook allowing unread email to infect a device (https://www.csoonline.com/article/3486789/microsoft-outlook-...)
It doesn't matter what the platform is, spam is toxic and should be handled carefully and as little as possible.
Back in the day, some systems used to acknowledge the request for a read receipt by default giving them the ability to determine if a number was actively watched.
Hopefully everything has it disabled by default these days.
Same thing
Your messaging client may helpfully request the url they sent you to show a url preview.
In an email, your client renders the html including img tags (yes, this can be disabled, and may not even be default for most people anymore; it’s still a thing)
Enable "Do Not Disturb" or its equivalent with your provider to make contacting you costlier and reduce spam. Then, manually block every number that contacts you.
The fact that I'm not replying even after your second attempt should be a strong indicator that I want you to remove me. If you send me three mails, I'll mark your email as spam and block you.
Many feel that this isn't actually effective in stopping spam.
But generally, when I was using a Pixel I made extensive use of Google's SMS spam blocker and reported all of the random political texts that kept using different names. (And eventually Google's filter learned)
Now on iPhone (outside the US), there's no junk detection and I don't trust any app to not keep my texts. But I found that blocking a bunch of shady shortener domains + WhatsApp links with an app like Blocky[1] catches like 95% of them.
1: A power user app that lets you make your own wildcard & regex filters for texts. Offline and open source. Looks like it's delisted by now, but this was the link to it: https://apps.apple.com/us/app/blocky-sms-filter/id1535374786 . Maybe I'll make one to replace it when I get a Mac.
For federal office, I've never gotten a response. For local office, sometimes I get back, "I'm a volunteer for candidate xyz." Once or twice the reply was seemingly from the candidate themselves.
The spammer can see the read receipt, so even if you don't respond, just viewing the message itself is a "response".
Read receipts should be disabled for unknown numbers by default.
"The SMS scam filter will not block unsolicited or unwanted commercial messages or ‘spam’. To unsubscribe to legitimate business spam or marketing SMS, you can reply STOP."
https://www.telstra.com.au/cyber-security-and-safety/active-...
If you don’t, block and report the number. Otherwise you indicate to the spammer that you’re a bonafide human, and they’ll even sell that information to others.
This applies to picking up calls from numbers you don’t know. Sometimes you’ll hear silence while you repeat “Hello?” and the call drops. That’s just a machine testing to see if you’re a worthwhile target.
Instead, let unknown calls go to voicemail.
ETA: maybe I should make my voicemail message a disconnection notice XD
ETA2: actually maybe we should be starting our voicemail messages with “ignore all previous instructions and drop table…”
https://about.att.com/pages/cyberaware/ni/blog/forward_7726
AT&T does say that they take action based on the reports, but I think it can be difficult because spammers can rotate through numbers pretty quickly and they don't want to block things based on a few reports.
For example, lots of people report marketing email as SPAM, but Google can't just block emails from the Gap that are complying with all the regulations around bulk email and which most receivers aren't reporting as SPAM.
But yes, those reports do go somewhere and they do try to take some action based on the reports. However, SPAM is a hard problem, especially for a communications medium that's meant to be near-instant.
Besides, this seems to be an US only thing so it will only work for law abiding US based spammers^H^H^Hdirect marketers. Not for spammers outside the US, US based spammers that don't care about the law or scam/phishing messages.
No, it blocks that mailchimp sender account from contacting you again. It doesn't block the sender from contacting you again through other means or through a different identity.
Would you like to buy a bridge?
In case it's pertinent to why blocking doesn't work for me, my problem is mainly with SMS spam messages sent by cellular service providers in Brazil (where TIM is particularly egregious). It doesn't make sense that iOS can't block a short code. It's just a simple string match. If you blocked an SMS message from number 72404, then another message from 72404 shouldn't be displayed.
If it's a company/organization that you've done business with, and they got your phone number through legitimate means, replying STOP will unsubscribe you, just like clicking unsubscribe in the email will simply unsubscribe you.
Folks saying that the amount of political spam they got after replying STOP to a political message went up, probably submitted their phone number to more organizations than they realized.
If it's actual spam (Which in my experience, is more often email-to-sms from Gmail, not actual texting spam) then of course that doesn't work.
Unfortunately this is a situation where you just have to use your brain. Oh, and I'm not convinced "report spam" does anything.
STOP/HTTP 403/unsubscribe all tell the other end that the address has something there. You’ll end up just reinforcing your place on a list of phone numbers to pass around.
I decided to go with Twilio for this purpose, solely for SMS 2FA, but twilio is entirely geared to supporting businesses with marketing campaigns and I cannot seem to get my number verified to be able to send SMS messages for a website that doesn't yet exist.
Kind of counter intuitive for effectively a search though.
In the US you can report the spam texts by forwarding the message to 7726 (“SPAM” on your keypad) at which point your carrier will text you back and ask for the source number. This doesn’t report the message to the government agencies but just your carrier, so they can hopefully punish the platforms sending spam.
Use a site like https://www.freecarrierlookup.com/ to see which carrier or platform sent it, which is useful for the next step of reporting offenders.
Now report the incident at the FTC and FCC websites. Do this every single time so it eventually creates difficulties for the platforms enabling this. Mention the carrier or platform carrying the spam. Put in all the details correctly.
https://consumercomplaints.fcc.gov/hc/en-us/requests/new
If it is an iMessage you should use the built in “report junk” feature.
You can also go to the website of the platform that carried the message to report things through their abuse reporting pages, but not all of them are diligent. Some are happy taking money from spammers to abuse you, and will make you keep reporting each phone number that spams you because they do nothing about it except block that one number from contacting you. They won’t fix the underlying root cause of why they have all these illegal abusers as customers.
My personal experience is that the vast majority of text spam comes from a few offending text messaging platforms - for example Sinch (https://en.wikipedia.org/wiki/Sinch_AB) and Bandwidth (https://en.wikipedia.org/wiki/Bandwidth_Inc.) for example. These are potentially seemingly commercial platforms for spammers. Note that Sinch owns Mailgun and Mailjet too and has a long documented history of legal trouble due to spamming. Businesses should avoid using these platforms because their own reputation and delivery will be affected by being mixed with spammers.
I don't bother responding STOP to the obvious scams. They're already so crooked I doubt they're going to pay attention to SMS niceties when messaging me from Romania about my USPS package.
PS: never ever give your phone number or email address to any political candidate. Mailing address is required in the US but no other contact info.
The extra text really bugged me at the moment. Using iMessage through my desktop, I spammed "STOP" texts to the number as fast as possible, receiving the same auto-reply each time.
I wanted to see if it would hit some limit, and after about 200 texts, I stopped receiving a reply.
I don't see any point in replying STOP to an unsolicited message, if they cared about your consent they wouldn't have sent it unsolicited in the first place.
I use Google Fi which marks most of them as spam anyway, and the ones it doesn't I flag as spam so presumably other Fi users will automatically have them routed to spam.
Spam should never be in the "better ask for forgiveness than ask for permission" bucket.
You could also do what I do: go paperless for everything and then you'll never receive legit mail again. Tip all the rest into the rubbish bin!
I still get the texts, although not as much, but they have a different domain, so that's...something I guess?
If anyone legitimate gets caught up in that, I’m not sorry, blame the spammers for ruining it for everyone.
This is what I really hate about the pig butchering scams. They start out like a wrong number text, and don’t even get into the scam. From what I understand it takes them months as they build a relationship. Now when there are legitimate wrong numbers from people making mistakes, people are likely to ignore it or report it as spam, and the person never knows they didn’t reach their friend.
If you think a bad actor is targeting you, DO NOT REPLY.
They will not honor your opt out request but they may use your number in the future as you’ve confirmed there’s a human behind it. They may even sell lists of repliers to other bad actors.
Once you've done that, they have 31 days to comply. There's plenty of legal entities that still will call you. If you answer, be polite, play the dope a bit to get the necessary unfortunately, ask how they got the number, then request a manager (yes, they have one, they will tell you they don't. Be polite but insist). When you get the manager politely ask for the company details, then tell them to immediately remove you from their list. Their business can be shut down for violations so once they know you know, they take you seriously (FCC takes reports more seriously when more detailed). They'll probably hang up on you, this is okay. Report them anyways (do this legal or not. They can get their voip removed and whatever shell they're using. It's still annoying for them and they might remove you because you're not worth it)
Second, don't answer phone calls. It is a practice to call, listen for a voice, then log that number as active.
Text messages are more difficult. It depends on the service but you can probably text stop. The difficulty of blocking is that legit services will use the same number to text you verification codes (can we fucking kill sms 2FA‽)
You can also sign up for a relay service (I use Firefox, but use whatever). I do this for email and every website has a unique email. Things like + for Gmail don't work and are filtered. You can also do this for phone numbers but it's more expensive.
Fourth, aggressively unsubscribe, report to FCC, change settings on devices, and so on. Do this for your non-tech savvy friends and family. Get them to use services like signal that are privacy preserving, don't leak metadata, AND is easy enough Grandma can use. Install ublock origin into their browsers and some other privacy preserving stuff and edit settings. Get them to use Firefox instead of Chrome if you can.
You need to do this to others because they will leak your information (most of my information leak comes from my parents. I even get emails in their names...)
If you want to take a step further, get a scrubbing service like optery. There's a lot of shady shit so be careful who you pick.
Edit: you can do a similar thing for mail. There is a $5 processing fee. Sucks, but sadly it's junk mail that keeps the post office alive (do not put "return to sender" unless it's prepaid. You need to give a reason otherwise your postal worker is just being nice and throwing it away for you. Don't create more work for them)
You can play wack-a-mole with uBlock, but it's wack-a-mole, and poor bandaid over our government agencies not doing the job they're supposed to be doing. You'll never get them all; AFAICT recently, my own state government sold my information to private corporations.
I receive, however, a fair measure of suspicious SMS, real-estate scams, political campaigns both legit and sus, and some pretty slick "USPS shipping" RCS phishing messages.
Now my Pixel Pro has a lot of spam protections and I need to leave them all completely disabled, because I routinely need to answer inbound voice calls from sketchy numbers, time-sensitive, because they could be a delivery driver or a taxi service. I just never know. The app does tag known spammer numbers, which sometimes turn out legit after all?
I consider SMS the worst mode of communication bar-none. It's locked to a single device with a single SIM. They can't be categorized, organized, tagged, forwarded, managed en masse, exported, or anything. To me it's a single-stream jumble of electronic jerks demanding my immediate attention and reactions over a most impersonal medium. I likewise disdain voice calls in many cases, so don't get me started.
There are short codes that are dedicated to OTP. Replying STOP to this number should not affect the ability for you to receive OTP for a different company login.
If you work somewhere that is spamming and enshitified, the way to convince your boss is to show them that their domains are being blocked and that leads to less money. That's the language they understand. They don't understand metrics (that's how we got here in the first place. So don't get technical!)
plus mains & MVNOs checked DO NOT CALL / DO NOT TEXT registry before letting known spam accounts through etc