Philadelphia Suburban Zone 42, PA — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

In NANP numbering, Philadelphia Suburban Zone 42, Pennsylvania is a rate center — the anchor point for local numbers. It is reached through 215, 267 (multiple area codes serve it).

22 central-office prefixes are currently anchored to this rate center, held by 9 different carriers. Pooling applies to 17 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area. Routing-wise it sits in LATA 228.

Because 215, 267 all serve this territory, two Philadelphia Suburban Zone 42 numbers can look completely different while being neighbors — check the prefix, not just the area code.

Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.

Prefixes anchored to Philadelphia Suburban Zone 42

FAQ

What area code is Philadelphia Suburban Zone 42, PA?

Philadelphia Suburban Zone 42 is served by 2 area codes — 215, 267 — which overlay the same territory.

How many prefixes does Philadelphia Suburban Zone 42 have?

22 active NXX prefixes are anchored to this rate center in NANPA records, held by 9 carriers.

Is a call from a Philadelphia Suburban Zone 42 prefix really from Philadelphia Suburban Zone 42?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.