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: 498

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-498 A West Glocester RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-498 0 West Glocester RI   829J PAETEC ITEL, LLC 130   2004-04-19   
401-498 1 West Glocester RI   073H TELNYX LLC 130   2017-04-26   
401-498 3 West Glocester RI   977E ONVOY, LLC - RI 130   2023-01-06   
401-498 4 West Glocester RI   631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2019-09-14   
401-498 7 West Glocester RI   977E ONVOY, LLC - RI 130   2016-03-25   
401-498 8 West Glocester RI   977E ONVOY, LLC - RI 130   2016-03-25   
401-498 9 West Glocester RI   7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.