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: 834

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-834 A Grass Valley: Main DA CA SCRMCA0121Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 726      
530-834 0 Grass Valley: Main DA CA   624H ONVOY SPECTRUM, LLC 726   2023-12-29   
530-834 7 Grass Valley: Main DA CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 726   2022-08-18   
530-834 8 Grass Valley: Main DA CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 726   2022-08-18   
530-834 9 Grass Valley: Main DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 726   2025-10-12   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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