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.

Switch: PRVDRIWAX9X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
401-321 A Hope Valley RI 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-321 3 Hope Valley RI 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-354 3 Providence RI 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-522 3 North Kingstown RI 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130   2023-09-07   
401-827 1 West Warwick RI 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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