Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 705

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-705 A Challenge CA CHICCA01XUX  388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 724      
530-705 4 Challenge CA CHICCA78AMD  516C AT&T CORP. 724   2025-01-08   
530-705 5 Challenge CA CHICCA01XUX  388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 724   2022-08-29   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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