Source note · Business texting and 10DLC registration
From January 31 2024 the toll-free messaging aggregator allowed only verified toll-free numbers to send SMS; unverified and pending-verification traffic to US and Canadian numbers is blocked.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Azure Communication Services SMS
- Subsystem
- Toll-free verification
- Deployment
- multi-tenant
- Region
- us-ca
- Release range
- from 2024-01-31
- Checked
- 2026-09-25
Sources
- SMS FAQ - An Azure Communication Services article — Microsoft · tier 2 current vendor documentation · Toll-free verification > What happens if I don't verify my toll-free numbers?
Cite this note
APA
WarmTransfer. (2026, September 25). Business texting and 10DLC registration: source note business-texting-10dlc-tf-unverified-blocked. WarmTransfer. https://warmtransfer.net/knowledge/claims/business-texting-10dlc-tf-unverified-blocked
BibTeX
@misc{warmtransfer-claim-business-texting-10dlc-tf-unverified-blocked,
title = {Business texting and 10DLC registration: source note business-texting-10dlc-tf-unverified-blocked},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/business-texting-10dlc-tf-unverified-blocked},
note = {Source note business-texting-10dlc-tf-unverified-blocked, checked 2026-09-25}
}