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: 401 [Rate centres in NPA 401] [Dial plan for NPA 401]

NXX: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-640 A Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130   2024-02-09   
401-640 0 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130      
401-640 1 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 2 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 3 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 4 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 5 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 6 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 7 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 8 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-640 9 Providence RI EPRVRIELCM2  5562 METROPCS, INC. 130      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.