Prefix 210-327 — San Antonio, TX

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

Area code
210
Prefix (NXX)
327
Rate center
San Antonio
State
Texas
Time zone
Central
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Pooled
Yes (thousands-block pooling)
Assigned
2007-02-06
LATA
566

A phone number starting 210-327 was issued in the San Antonio rate center of TX — part of area code 210.

NANPA's central-office code records list MCIMETRO ACCESS TRANSMISSION SERVICES LLC (OCN 7229) as the code holder, assigned February 6, 2007. Because 210-327 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

A scammer can display 210-327 without ever touching TX. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

San Antonio is part of the San Antonio-New Braunfels, TX Metropolitan Statistical Area. For routing purposes it sits in LATA 566. Numbers here keep Central time.

Neighboring prefixes

Prefixes adjacent to 210-327
PrefixRate centerCode holder
210-324 San Antonio NEW CINGULAR WIRELESS PCS, LLC - IL
210-325 San Antonio T-MOBILE USA, INC.
210-326 San Antonio T-MOBILE USA, INC.
210-328 San Antonio CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
210-329 San Antonio ONVOY SPECTRUM, LLC
210-330 San Antonio NEW CINGULAR WIRELESS PCS, LLC - IL

FAQ

Where is 210-327 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 210-327 numbers?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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 210-327 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.