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: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 485

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-485 A Cambridge MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2024-07-20   
667-485 0 Cambridge MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
667-485 1 Cambridge MD   876D ONVOY, LLC - MD 242      
667-485 2 Cambridge MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.