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: 920

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-920 A Grass Valley: Main DA CA YBCYCATU0MD  973E RACE TELECOMMUNICATIONS, INC. - CA 726      
530-920 0 Grass Valley: Main DA CA WSCRCAKE1MD  6529 T-MOBILE USA, INC. 726   2023-07-28   
530-920 1 Grass Valley: Main DA CA YBCYCATU0MD  973E RACE TELECOMMUNICATIONS, INC. - CA 726   2022-12-03   
530-920 2 Grass Valley: Main DA CA   829J PAETEC ITEL, LLC 726   2026-01-04   
530-920 4 Grass Valley: Main DA CA SCRMCA01DS3  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726   2024-11-02   
530-920 5 Grass Valley: Main DA CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2023-08-10   
530-920 6 Grass Valley: Main DA CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2023-08-10   
530-920 7 Grass Valley: Main DA CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2023-08-10   
530-920 8 Grass Valley: Main DA CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2023-08-10   
530-920 9 Grass Valley: Main DA CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2023-08-10   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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