Enhancing Know-Your-Upstream-Provider Requirements and Strengthening STIR/SHAKEN (Call Authentication Trust Anchor; Advanced Methods To Target and Eliminate Unlawful Robocalls)
Published Date: 7/9/2026
Proposed Rule
Summary
The FCC is stepping up the fight against annoying robocalls by making phone companies better at checking who they get calls from and improving call ID protections. These new rules will affect voice service providers, requiring them to verify their partners and follow stricter caller ID standards to stop fake calls. Comments on these changes are open until August 10, 2026, so the public can weigh in before the rules take effect.
Analyzed Economic Effects
6 provisions identified: 2 benefits, 3 costs, 1 mixed.
New Baseline KYUP Duties for Providers
The FCC proposes that voice service providers must follow five baseline Know-Your-Upstream-Provider (KYUP) steps: information collection, compliance review, information verification, ongoing monitoring, and responsive action to cut off bad-actor upstream providers. The rule would apply to both facilities-based and non-facilities-based voice providers and is intended to prevent upstream providers from using networks to transmit illegal calls.
Required Upstream Provider Information List
The FCC proposes providers must collect a detailed set of upstream-provider records directly, including legal business name, prior DBAs (3 years), a physical non-virtual address, contact info, billing/financial details, internet presence, ownership and ultimate beneficial owner information (including names and IDs), operational and corporate formation records, and service descriptions (e.g., whether non-IP technology is used).
Stronger Caller ID Attestation Rules
The FCC proposes to raise STIR/SHAKEN caller ID attestation standards by codifying attestation levels, defining improper attestations, specifying permissible ways to verify number-to-customer associations, and closing implementation gaps so authentication is more ubiquitous and consistent on IP networks. The FCC also seeks comment on requiring providers serving end users to assign attestations and on reconsidering exemptions.
When KYUP Checks Must Be Done
The FCC proposes that providers must perform KYUP checks (a) before entering into a service agreement with a new upstream provider, (b) before renewing or renegotiating an agreement with an existing upstream provider, and (c) any time they find or receive evidence about an upstream provider. The FNPRM proposes the KYUP rules would take effect the later of 12 months after Federal Register publication of a Report and Order adopting the rules or 30 days after OMB approval for PRA-covered collections, and providers would have six months after the rules take effect to do a one-time KYUP review of current upstream providers.
Documentation, Notice, and Safe Harbor for Cutting Service
The FCC proposes that providers must document KYUP-based decisions to refuse or discontinue service, notify the upstream provider five (5) business days before discontinuing service, and that providers would receive a safe harbor from liability for objectively reasonable decisions to refuse or discontinue service. The Commission proposes an 'objectively reasonable' standard to limit anticompetitive misuse.
Governance Authority Oversight and Third-Party KYUP Options
The FCC proposes expanding the STIR/SHAKEN Governance Authority's vetting, enforcement, and reporting duties to prevent misuse of STIR/SHAKEN certificates and remove noncompliant providers, and proposes allowing downstream providers to use third-party KYUP services or clearinghouses (and seeks comment on designating such entities). The Commission also asks how to reduce burdens for small providers.
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Key Dates
Department and Agencies
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