Twilio blocks messages to US numbers sent from a +1 10DLC number not associated with an approved A2P 10DLC Campaign, logging error 30034.

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

Cite this note

APA

WarmTransfer. (2026, October 14). Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-error-30034-unregistered. WarmTransfer. https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-error-30034-unregistered

BibTeX

@misc{warmtransfer-claim-twilio-a2p-10dlc-registration-error-30034-unregistered,
  title  = {Registering A2P 10DLC in Twilio: source note twilio-a2p-10dlc-registration-error-30034-unregistered},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/twilio-a2p-10dlc-registration-error-30034-unregistered},
  note   = {Source note twilio-a2p-10dlc-registration-error-30034-unregistered, checked 2026-10-14}
}

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