Philadelphia Suburban Zone 37, PA — rate center
- State
- Pennsylvania
- Active prefixes
- 17
- Carriers
- 9
- Pooled prefixes
- 14
- LATA
- 228
- Metro area
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA
In NANP numbering, Philadelphia Suburban Zone 37, Pennsylvania is a rate center — the anchor point for local numbers. It is reached through 215, 267 (multiple area codes serve it).
The rate center currently carries 17 working prefixes, held by 9 different carriers. Pooling applies to 14 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 37 numbers can look completely different while being neighbors — check the prefix, not just the area code.
A Philadelphia Suburban Zone 37 prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Philadelphia Suburban Zone 37
| Prefix | Code holder | Pooled |
|---|---|---|
| 215-344 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | Yes |
| 215-544 | LEVEL 3 COMMUNICATIONS, LLC - PA | Yes |
| 215-914 | VERIZON PENNSYLVANIA, INC. | Yes |
| 215-938 | VERIZON PENNSYLVANIA, INC. | No |
| 215-947 | VERIZON PENNSYLVANIA, INC. | No |
| 215-974 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 215-975 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
FAQ
What area code is Philadelphia Suburban Zone 37, PA?
Philadelphia Suburban Zone 37 is served by 2 area codes — 215, 267 — which overlay the same territory.
How many prefixes does Philadelphia Suburban Zone 37 have?
17 active NXX prefixes are anchored to this rate center in NANPA records, held by 9 carriers.
Is a call from a Philadelphia Suburban Zone 37 prefix really from Philadelphia Suburban Zone 37?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.