The FCC's 2020 STIR/SHAKEN order describes full (A) attestation as the originating provider being able to confirm the identity of the subscriber making the call and that the subscriber is using its associated telephone number.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- FCC caller ID authentication rules
- Deployment
- carrier
- Region
- us
- Release range
- FCC 20-42
- Checked
- 2026-10-02
Sources
- Call Authentication Trust Anchor; Implementation of TRACED Act Section 6(a)—Knowledge of Customers by Entities With Access to Numbering Resources (85 FR 22029) — Federal Communications Commission via Office of the Federal Register (GovInfo) · tier 1 standards and regulators · paragraph 8, 85 FR 22031
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-fcc-a-def. WarmTransfer. https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-fcc-a-def
BibTeX
@misc{warmtransfer-claim-stir-shaken-attestation-troubleshooting-fcc-a-def,
title = {Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-fcc-a-def},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-fcc-a-def},
note = {Source note stir-shaken-attestation-troubleshooting-fcc-a-def, checked 2026-10-02}
}