Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 267 [Rate centres in NPA 267] [Dial plan for NPA 267]

NXX: 554

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
267-554 A Philadelphia Suburban Zone 42 PA   829J PAETEC ITEL, LLC 228   2025-03-11   
267-554 0 Philadelphia Suburban Zone 42 PA   829J PAETEC ITEL, LLC 228      
267-554 1 Philadelphia Suburban Zone 42 PA PHLAPAFGXHX  939H COMMIO, LLC 228   2022-11-06   
267-554 2 Philadelphia Suburban Zone 42 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2023-08-10   
267-554 3 Philadelphia Suburban Zone 42 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2023-08-10   
267-554 4 Philadelphia Suburban Zone 42 PA PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228   2021-05-13   
267-554 6 Philadelphia Suburban Zone 42 PA   829J PAETEC ITEL, LLC 228      
267-554 7 Philadelphia Suburban Zone 42 PA PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2014-09-17   
267-554 9 Philadelphia Suburban Zone 42 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-25   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.