Prefix 904-229 — Jacksonville, FL

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

Area code
904
Prefix (NXX)
229
Rate center
Jacksonville
State
Florida
Time zone
Eastern
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
OCN
7229
Pooled
Yes (thousands-block pooling)
Assigned
2003-08-13
LATA
452

904-229 identifies a block of numbers in Jacksonville, FL, within the 904 area code. Every US prefix is tied to exactly one rate center; this one is Jacksonville.

The rate center lies in the Jacksonville, FL Metropolitan Statistical Area. The serving LATA is 452. Local time follows the Eastern zone.

Treat the on-screen number as a hint, not evidence — 904-229 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.

The assigned code holder is MCIMETRO ACCESS TRANSMISSION SERVICES LLC, operating company number 7229, assigned August 13, 2003. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

Neighboring prefixes

Prefixes adjacent to 904-229
PrefixRate centerCode holder
904-226 Jacksonville POWERTEL JACKSONVILLE LICENSES, INC.
904-227 Jacksonville CALLWORKS CORPORATION
904-228 Jacksonville POWERTEL JACKSONVILLE LICENSES, INC.
904-230 Saint Johns BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
904-231 Jacksonville COMMIO, LLC
904-232 Jacksonville BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL

FAQ

Where is 904-229 located?

The prefix is assigned to the Jacksonville rate center in FL, area code 904. It is part of the Jacksonville, FL Metropolitan Statistical Area.

Which company owns 904-229 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 904-229 safe to answer?

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