Of the robocalls and text message spam that I tracked back to the originating carrier (OCN), by far the two largest source carriers were:
1. Commio and its subsidiaries Teli and thinQ (commio.com and teli.net)
2. Telnyx (telnyx.com)
If the FCC reads this comment: look into those two. In particular, both companies do a poor job of policing their resellers/affiliates. Even when a recipient is savvy enough to find the source OCN and report it to them, the spammers just move from one reseller to a different reseller of the same carrier.
Both carriers know this and look the other way, since it's cheaper than than investing more resources (content blocking, tighter velocity limits, carrier-verified opt-in) or removing the resellers who repeatably sign up spammers. Twilio was in the top 5, but as a % of their total traffic, nowhere near Commio/Teli and Telnyx.
(And if the FCC is reading this, a wish: add a "SPAM" or "ABUSE" SMS keyword that carriers are required to process. Operationally, it would behave similar to "STOP", with a couple differences: it would be entirely processed by the carrier; the carrier would be required to respond with the name and full contact info of both the carrier and their customer; and it would give responsible carriers a way to hear about/act on abuse complaints. Right now, 10DLC spam is so hard for regular people to track that abuse mostly goes unreported.)
1. Commio and its subsidiaries Teli and thinQ (commio.com and teli.net)
2. Telnyx (telnyx.com)
If the FCC reads this comment: look into those two. In particular, both companies do a poor job of policing their resellers/affiliates. Even when a recipient is savvy enough to find the source OCN and report it to them, the spammers just move from one reseller to a different reseller of the same carrier.
Both carriers know this and look the other way, since it's cheaper than than investing more resources (content blocking, tighter velocity limits, carrier-verified opt-in) or removing the resellers who repeatably sign up spammers. Twilio was in the top 5, but as a % of their total traffic, nowhere near Commio/Teli and Telnyx.
(And if the FCC is reading this, a wish: add a "SPAM" or "ABUSE" SMS keyword that carriers are required to process. Operationally, it would behave similar to "STOP", with a couple differences: it would be entirely processed by the carrier; the carrier would be required to respond with the name and full contact info of both the carrier and their customer; and it would give responsible carriers a way to hear about/act on abuse complaints. Right now, 10DLC spam is so hard for regular people to track that abuse mostly goes unreported.)