Source note · Registering A2P 10DLC in Twilio
The Sole Proprietor OTP mobile number must be a US or Canadian mobile not acquired from a CPaaS provider and can be used at most three times across A2P Brand registrations, a limit enforced by TCR.
Checked 2026-10-14
- Vendor
- Twilio
- Product
- Trust Hub
- Subsystem
- A2P 10DLC sole proprietor OTP
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-14
- Checked
- 2026-10-14
Sources
- ISV Sole Proprietor Registration via API — Twilio · tier 2 current vendor documentation · Step 2.3 caution and limits list
Cite this note
APA
WarmTransfer. (2026, October 14). Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit. WarmTransfer. https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit
BibTeX
@misc{warmtransfer-claim-twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit,
title = {Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit},
note = {Source note twilio-a2p-10dlc-registration-sole-prop-mobile-reuse-limit, checked 2026-10-14}
}