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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-991 A Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 0 Oroville CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 724   2025-04-20   
530-991 1 Oroville CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 724   2025-09-10   
530-991 3 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 4 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 5 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 6 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 7 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 8 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   
530-991 9 Oroville CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724   2025-01-12   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.