Group Text Spam - What's That About?

I get very few spam emails or phone calls. No doubt due to a lot of blocking by service providers upstream of my device, but also due to me not being stupid about getting my info out there on sucker lists.

I get lots of texts that are partisan political solicitations. Sorta par for the course in our modern world. Other than those, I get very little txt spam. At least until a couple months ago.

Starting a couple months ago, so maybe Oct 2025 I began getting txt notices that I have been added to a group text conversation. The conversation always has a “caller ID” that’s a 5-digit seemingly random number. I can see that the other members of the group text convo are about 20 North American-format numbers from many different area codes. None of which are contacts known to my phone.

Unlike a conventional txt message, there’s no option on my Samsung Android to block the originating party. I can leave the convo followed by deleting my phone’s record of the convo, but that’s all I can do with it. And that’s what I’ve done w all of them.

These things show up about once every 3 days. Different caller ID each time as best I can remember, but same overall experience. I’ve never stayed joined to the convo long enough to receive any messages from it. I just get the contentless notice “You’ve been added to group text conversation 12345”

With all that lead-up:

  1. Anyone else receiving these things?

  2. Anyone have any insight into what would happen next if I stayed connected to one of these convos?

  3. Anyone have an success making this crap stop appearing on their phone?

I’ve gotten a few of those over the last year or so. I delete them and report them as spam, but I have no doubt that it does little good, as the spammers just use different numbers the next time.

I don’t get the “you have been added” part (maybe that’s carrier-specific?) but I do get group spams. They are usually job offers that sound too good to be true. I’ve never got a reply from anyone back to the group (and you know human nature, someone will inevitably replay all to a group notification email) so I don’t know if anyone else is real or they are just smart enough to shitcan the text.

And there is no way to block the sender. This shit is annoying.

I think you’re getting RCS group chat spam, which seems to bypass the normal spam filters. RCS is a newer chat protocol that Google made, and it has some benefits (like being able to retroactively invite another person to a group chat and letting them see previous messages, along with encryption and read receipts, etc.).

I get them on my Pixel too. Eventually someone else in the group will usually say “scam!!” or insult the sender, or everyone just leaves.

But if you don’t really care about RCS and mostly you’re just getting spam, you can disable that altogether: 3 Ways to Turn Off RCS on Android, Including Samsung - Guiding Tech

Then your phone would fall back to the older MMS protocol for group texts, and the spam filters would probably work then.

I think you can report & block these with Google Messages. Maybe Samsung Messages doesn’t have that ability?

But while Google Messages is generally good at catching other spam, it’s still not good at catching these RCS group chat spam.

Thanks for all that. I don’t use the Google Messages app. The Samsung messaging app I have is not quite like the one depicted in your how-to cite. Specifically, it lacks the toggle for RCS.

But I think you’re correct that RCS is the underlying protocol in use and evidently it has some spamtastic holes in it.

You can try this remote disabling from Google: https://messages.google.com/disable-chat (at the bottom, under previous device)

I think RCS is a account level setting, so even if you disable it through the site or with Google Messages, it should still be disabled in Samsung Messages too. I’m not 100% sure, but it’s worth a shot maybe?

I get them rarely, usually a group chat for some miraculous pyramid scheme.

But I am old enough to remember the wild, wild west of the internet (late 90s, early 00s) when “shock sites” were in vogue… So I actively participate in the chat, just with images from the sordid legends of the web (do not Google if you don’t already know) - everything from “cake farts” to “gay dinosaur porn” to “rotten dot com”.

I usually get banned from the group chat quite quickly, and, I assume, get put on a blacklist because my participation is slightly less than compatible with whatever sales pitch - usually an MLM scam - they are pushing.