In the Federal Register text of FCC 24-120, A-level attestation requires the originating provider to have a direct authenticated relationship with the customer, be able to identify it, and have verified that the customer has a legitimate right to use the telephone number.

Checked 2026-09-25

Vendor
US FCC
Product
STIR
Subsystem
attestation
Deployment
any
Region
us
Release range
rules effective 2025-09-18
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-fcc-a-level-criteria. WarmTransfer. https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-fcc-a-level-criteria

BibTeX

@misc{warmtransfer-claim-caller-id-presentation-problems-fcc-a-level-criteria,
  title  = {Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-fcc-a-level-criteria},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-fcc-a-level-criteria},
  note   = {Source note caller-id-presentation-problems-fcc-a-level-criteria, checked 2026-09-25}
}

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