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: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-321 A Chico CA   6529 T-MOBILE USA, INC. 724      
530-321 0 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 1 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 2 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 3 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 4 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 5 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 6 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 7 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 8 Chico CA CHICCA01RMD  6529 T-MOBILE USA, INC. 724      
530-321 9 Chico CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 724      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.