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: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 539

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-539 A Watsonville CA   6529 T-MOBILE USA, INC. 722      
831-539 0 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-539 1 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 2 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-539 3 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 4 Watsonville CA   649C ONVOY, LLC - CA 722      
831-539 5 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 6 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 7 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 8 Watsonville CA   5562 METROPCS, INC. 722      
831-539 9 Watsonville CA   5562 METROPCS, INC. 722      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.