Prefix 215-999 — Philadelphia Zone 1, PA

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

Area code
215
Prefix (NXX)
999
Rate center
Philadelphia Zone 1
State
Pennsylvania
Time zone
Eastern
Code holder
XTEL COMMUNICATIONS, INC.
OCN
854D
Pooled
Yes (thousands-block pooling)
Assigned
2011-05-18
LATA
228

The 215-999 prefix belongs to area code 215 and is anchored to the Philadelphia Zone 1 rate center (PA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Philadelphia Zone 1 is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area. For routing purposes it sits in LATA 228. Numbers here keep Eastern time.

Code-holder of record: XTEL COMMUNICATIONS, INC. (OCN 854D), assigned May 18, 2011. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 215-999 numbers may be served by different companies.

Caller ID showing 215-999 is not proof the call came from Philadelphia Zone 1: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.

Neighboring prefixes

Prefixes adjacent to 215-999
PrefixRate centerCode holder
215-996 Line Lexington VERIZON PENNSYLVANIA, INC.
215-997 Line Lexington VERIZON PENNSYLVANIA, INC.
215-998 Philadelphia Zone 1 SPOK, INC.

FAQ

Where is 215-999 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 215-999 numbers?

XTEL COMMUNICATIONS, INC. 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 215-999 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.