Prefix 813-437 — Tampa Central, FL

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

Area code
813
Prefix (NXX)
437
Rate center
Tampa Central
State
Florida
Time zone
Eastern
Code holder
LEVEL 3 COMMUNICATIONS, LLC - FL
OCN
4802
Pooled
Yes (thousands-block pooling)
Assigned
2017-06-06
LATA
952

Numbers in the 813-437 prefix are registered to the Tampa Central rate center in FL, inside area code 813. The prefix is the second block of a ten-digit US number (813-437-XXXX) and pins the number to a billing locality.

The assigned code holder is LEVEL 3 COMMUNICATIONS, LLC - FL, operating company number 4802, assigned June 6, 2017. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

The rate center lies in the Tampa-St. Petersburg-Clearwater, FL Metropolitan Statistical Area. The serving LATA is 952. Local time follows the Eastern zone.

Spoofing means this prefix on your screen doesn't guarantee a Tampa Central caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 813-437
PrefixRate centerCode holder
813-434 Tampa South LEVEL 3 TELECOM OF FLORIDA, LP - FL
813-435 Tampa North LEVEL 3 TELECOM OF FLORIDA, LP - FL
813-436 Tampa East LEVEL 3 TELECOM OF FLORIDA, LP - FL
813-438 Tampa East AERIAL COMMUNICATIONS, INC.
813-439 Tampa Central TELEPORT COMMUNICATIONS AMERICA, LLC - FL
813-440 Tampa Central CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL

FAQ

Where is 813-437 located?

The prefix is assigned to the Tampa Central rate center in FL, area code 813. It is part of the Tampa-St. Petersburg-Clearwater, FL Metropolitan Statistical Area.

Which company owns 813-437 numbers?

LEVEL 3 COMMUNICATIONS, LLC - FL 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 813-437 safe to answer?

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