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: 501 [Rate centres in NPA 501] [Dial plan for NPA 501]

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
501-504 A Conway AR CNWYARMADS0  9533 SOUTHWESTERN BELL 528      
501-504 0 Conway AR NLRKAR441MD  6529 T-MOBILE USA, INC. 528      
501-504 1 Conway AR NLRKAR441MD  6529 T-MOBILE USA, INC. 528      
501-504 2 Conway AR CNWYARMADS0  9533 SOUTHWESTERN BELL 528      
501-504 3 Conway AR NLRKAR444MD  5562 METROPCS, INC. 528      
501-504 4 Conway AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
501-504 5 Conway AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
501-504 6 Conway AR LTRKARFRXLY  348F ONVOY, LLC - AR 528      
501-504 7 Conway AR LTRKARFRXLY  348F ONVOY, LLC - AR 528      
501-504 8 Conway AR RLVLARFI2MD  508J CENTURYLINK COMMUNICATIONS, LLC 528      
501-504 9 Conway AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.