Source note · Registering A2P 10DLC in Twilio
Error 30034 also occurs when the sending number is not in the Sender Pool of the Messaging Service linked to the approved Campaign.
Checked 2026-10-14
- Vendor
- Twilio
- Product
- Programmable Messaging
- Subsystem
- A2P 10DLC enforcement
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-14
- Checked
- 2026-10-14
Sources
- 30034: US A2P 10DLC - Message from an Unregistered Number — Twilio · tier 2 current vendor documentation · 'Possible causes'
Cite this note
APA
WarmTransfer. (2026, October 14). Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-30034-not-in-sender-pool. WarmTransfer. https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-30034-not-in-sender-pool
BibTeX
@misc{warmtransfer-claim-twilio-a2p-10dlc-registration-30034-not-in-sender-pool,
title = {Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-30034-not-in-sender-pool},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-30034-not-in-sender-pool},
note = {Source note twilio-a2p-10dlc-registration-30034-not-in-sender-pool, checked 2026-10-14}
}