Regulations & Bodies
Who governs US texting and calling — the FCC, CTIA, TCR, Somos, the carriers, and the ITG — plus a dated tracker of what changed in 2024–2026 and what's coming.
A2P rules come from federal law (FCC/TCPA), an industry trade group (CTIA), a central registry (TCR), the carriers, and several private vendors. Here’s who does what — and what’s changed recently.
Every material change to US A2P texting and calling rules since 2024, with its current status and countdowns to upcoming deadlines.
Open referenceOfficial US gov resourcesThe authoritative .gov sources behind every rule on this site — the FCC, FTC, the US Code, the CFR, and more. When a vendor doc and a …
Open referenceWho governs whatA2P in the US isn't one license from one agency — it's a stack of overlapping authorities. Here's each body, what kind of power it …
Open referenceFCCThe only body in the A2P stack that makes binding law. The FCC enforces the TCPA, mandates STIR/SHAKEN caller-ID authentication, and …
Open referenceCTIACTIA is the wireless carriers' trade association. Its Messaging Principles & Best Practices are technically non-binding — but the …
Open referenceTCPAThe Telephone Consumer Protection Act is the federal law that decides whether a call or text is legal to send. Private right of action, …
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