Adamsville, TX — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

The Adamsville rate center (Texas) anchors 5 active prefixes under area codes 512, 737. Rate centers, not city limits, are what phone numbers are legally tied to.

5 central-office prefixes are currently anchored to this rate center across 5 carriers. 5 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.

Routing-wise it sits in LATA 558.

Multiple area codes over one rate center (512/737) is the overlay pattern: same geography, different first three digits.

With only 5 prefixes, Adamsville sits at the small end of Texas's rate centers — a handful of carrier blocks cover the whole locality, and a number from here is a fairly strong locality signal (before porting is considered).

Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.

Prefixes anchored to Adamsville

FAQ

What area code is Adamsville, TX?

Adamsville is served by 2 area codes — 512, 737 — which overlay the same territory.

How many prefixes does Adamsville have?

5 active NXX prefixes are anchored to this rate center in NANPA records, held by 5 carriers.

Is a call from a Adamsville prefix really from Adamsville?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.