FCC 23-21 requires mobile wireless providers to block texts purporting to be from NANP numbers on a reasonable do-not-originate list, including invalid, unallocated and unused numbers.

Checked 2026-10-02

Vendor
not restricted
Product
not restricted
Subsystem
text blocking regulation
Deployment
carrier-network
Region
us
Release range
FCC 23-21 as adopted 2023-03-16
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting business SMS that is not delivered: source note business-sms-delivery-troubleshooting-fcc-dno-text-block. WarmTransfer. https://warmtransfer.net/knowledge/claims/business-sms-delivery-troubleshooting-fcc-dno-text-block

BibTeX

@misc{warmtransfer-claim-business-sms-delivery-troubleshooting-fcc-dno-text-block,
  title  = {Troubleshooting business SMS that is not delivered: source note business-sms-delivery-troubleshooting-fcc-dno-text-block},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/business-sms-delivery-troubleshooting-fcc-dno-text-block},
  note   = {Source note business-sms-delivery-troubleshooting-fcc-dno-text-block, checked 2026-10-02}
}

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