The SHAKEN PASSporT attest claim takes A (full), B (partial) or C (gateway) as its value.

Checked 2026-10-02

Vendor
not restricted
Product
not restricted
Subsystem
Identity header
Deployment
multi-tenant
Region
us
Release range
RFC 8588
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-shaken-attest-levels. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-identity-headers-shaken-attest-levels

BibTeX

@misc{warmtransfer-claim-sip-identity-headers-shaken-attest-levels,
  title  = {SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-shaken-attest-levels},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-identity-headers-shaken-attest-levels},
  note   = {Source note sip-identity-headers-shaken-attest-levels, checked 2026-10-02}
}

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