Prefix 210-328 — San Antonio, TX

NANPA CO code assignment, current as of July 28, 2026.

Area code
210
Prefix (NXX)
328
Rate center
San Antonio
State
Texas
Time zone
Central
Code holder
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
OCN
6506
Pooled
Yes (thousands-block pooling)
Assigned
2009-08-21
LATA
566

210-328 identifies a block of numbers in San Antonio, TX, within the 210 area code. Every US prefix is tied to exactly one rate center; this one is San Antonio.

The rate center lies in the San Antonio-New Braunfels, TX Metropolitan Statistical Area. The serving LATA is 566. Local time follows the Central zone.

Treat the on-screen number as a hint, not evidence — 210-328 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

NANPA's central-office code records list CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (OCN 6506) as the code holder, assigned August 21, 2009. Because 210-328 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 210-328
PrefixRate centerCode holder
210-325 San Antonio T-MOBILE USA, INC.
210-326 San Antonio T-MOBILE USA, INC.
210-327 San Antonio MCIMETRO ACCESS TRANSMISSION SERVICES LLC
210-329 San Antonio ONVOY SPECTRUM, LLC
210-330 San Antonio NEW CINGULAR WIRELESS PCS, LLC - IL
210-331 San Antonio AT&T - LOCAL

FAQ

Where is 210-328 located?

The prefix is assigned to the San Antonio rate center in TX, area code 210. It is part of the San Antonio-New Braunfels, TX Metropolitan Statistical Area.

Which company owns 210-328 numbers?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 210-328 safe to answer?

The prefix itself says nothing about the caller. Legitimate San Antonio businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.