San Gabriel, TX — rate center

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

State
Texas
Area codes
512, 737
Active prefixes
4
Carriers
4
Pooled prefixes
4
LATA
558
Metro area
Austin-Round Rock-San Marcos, TX MSA

In NANP numbering, San Gabriel, Texas is a rate center — the anchor point for local numbers. It is reached through 512, 737 (multiple area codes serve it).

NANPA records show 4 active prefixes here, held by 4 different carriers. Pooling applies to 4 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area. Routing-wise it sits in LATA 558.

Because 512, 737 all serve this territory, two San Gabriel numbers can look completely different while being neighbors — check the prefix, not just the area code.

San Gabriel is a small rate center: 4 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

As always with US numbering: a prefix anchored to San Gabriel tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.

Prefixes anchored to San Gabriel

Prefixes anchored to the San Gabriel rate center
PrefixCode holderPooled
512-862 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Yes

FAQ

What area code is San Gabriel, TX?

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

How many prefixes does San Gabriel have?

4 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.

Is a call from a San Gabriel prefix really from San Gabriel?

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