Prefix 215-309 — Philadelphia Zone 1, PA

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

Area code
215
Prefix (NXX)
309
Rate center
Philadelphia Zone 1
State
Pennsylvania
Time zone
Eastern
Code holder
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA
OCN
7434
Pooled
Yes (thousands-block pooling)
LATA
228

Numbers in the 215-309 prefix are registered to the Philadelphia Zone 1 rate center in PA, inside area code 215. The prefix is the second block of a ten-digit US number (215-309-XXXX) and pins the number to a billing locality.

The assigned code holder is MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA, operating company number 7434. 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 Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area. The serving LATA is 228. Local time follows the Eastern zone.

Spoofing means this prefix on your screen doesn't guarantee a Philadelphia Zone 1 caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 215-309
PrefixRate centerCode holder
215-306 Philadelphia Zone 1 SPOK, INC.
215-307 Philadelphia Zone 2 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP
215-308 Philadelphia Zone 1 SPOK, INC.
215-310 Morrisville LEVEL 3 COMMUNICATIONS, LLC - PA
215-312 Philadelphia Zone 1 SPOK, INC.
215-313 Philadelphia Zone 1 NEW CINGULAR WIRELESS PCS, LLC - DC

FAQ

Where is 215-309 located?

The prefix is assigned to the Philadelphia Zone 1 rate center in PA, area code 215. It is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area.

Which company owns 215-309 numbers?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 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 215-309 safe to answer?

The prefix itself says nothing about the caller. Legitimate Philadelphia Zone 1 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.