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: 201 [Rate centres in NPA 201] [Dial plan for NPA 201]

NXX: 274

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
201-274 A Morristown NJ NBWKNJ17QMD  6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      
201-274 3 Morristown NJ   6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      
201-274 4 Morristown NJ   6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      
201-274 5 Morristown NJ   6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      
201-274 6 Morristown NJ   6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      
201-274 9 Morristown NJ   6391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 224      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.