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: 830

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-830 A Centredale RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130      
401-830 0 Centredale RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-830 1 Centredale RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-830 2 Centredale RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-830 3 Centredale RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-830 4 Centredale RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-830 5 Centredale RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-830 6 Centredale RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-830 7 Centredale RI EPRVRIELCM2  5562 METROPCS, INC. 130      
401-830 8 Centredale RI   5562 METROPCS, INC. 130      
401-830 9 Centredale RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.