• A Strategic Initiative to Advance America's Telecommunications Infrastructure

STIR/SHAKEN Compliance & Call Authentication

Enforcing Caller Identity. Protecting Your Reputation. Complying with FCC Mandates.

STIR/SHAKEN Compliance & Call Authentication

With FCC enforcement intensifying and carriers actively blocking unauthenticated calls, STIR/SHAKEN compliance is no longer optional, it’s operational.

USTelco is a STIR/SHAKEN-authoritative provider, fully registered with the FCC, and empowered to sign, validate, and trace voice traffic under the national trust framework. Whether you’re an enterprise, a telecom platform, or a high-volume dialer, our infrastructure ensures your calls are cryptographically signed, identity-authenticated, and never labeled as spam.

“Call trust is the new currency of voice communications. We make sure your calls are verified, delivered, and respected.”

What Is STIR/SHAKEN?

STIR (Secure Telephony Identity Revisited) and SHAKEN (Signature-based Handling of Asserted information using toKENs) are FCC-mandated protocols that:

  • Prevent caller ID spoofing and impersonation
  • Authenticate the identity of a call’s origin
  • Enable carriers to trace and block fraudulent calls
  • Protect consumers and businesses from robocalls

USTelco operates as a fully authorized STIR/SHAKEN signing provider, giving you full call legitimacy from the moment your call originates.

Our STIR/SHAKEN Capabilities

Attestation Authority (A, B, C)

We assign the appropriate trust level to each call based on identity and call origination path:
  • A Attestation: Verified customer and known caller ID
  • B Attestation: Known customer, unverifiable caller ID
  • C Attestation: Gateway or unverified third-party traffic

Full Signing & Call Identity Authentication

  • Calls cryptographically signed with STIR/SHAKEN tokens
  • Integration with your PBX, dialer, or voice platform via SIP headers
  • Real-time verification status for each call attempt
  • Prevents call labeling or outright blocking by terminating carriers

Robocall Mitigation & FCC Compliance

  • Registered with the FCC Robocall Mitigation Database (RMD)
  • Real-time fraud scoring and traceback-enabled infrastructure
  • Detailed compliance logs and signature validation reports

Reputation Protection & CLI Monitoring

  • Monitor caller ID reputation across major analytics engines
  • Proactively prevent “spam likely” tags and call suppression
  • Instant remediation tools for flagged or spoofed numbers
  • Reporting and audit tools to trace spoof attempts or call anomalies
USTelco

Who Needs STIR/SHAKEN?

Trust

Why Trust USTelco?

STIR/SHAKEN Signed at the Infrastructure Level

Not resold, not downstream

Real-Time Monitoring & Logs

Know your calls are signed and delivered

FCC-Registered Attestation Authority

Full compliance, traceability, and enforcement

Protect Your Caller Identity

Maintain call trust, improve answer rates

National Network Interconnects

Your calls traverse top-tier, verified routes only

Use Cases We Power

Ready to Authenticate Every Call?

USTelco gives your organization the tools, trust, and infrastructure to meet all STIR/SHAKEN and robocall mitigation standards, and restore legitimacy to your outbound communications.