Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-643 A Palo Alto CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
650-643 0 Palo Alto CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2022-01-15   
650-643 1 Palo Alto CA   649C ONVOY, LLC - CA 722   2022-01-15   
650-643 2 Palo Alto CA   516J TON80 COMMUNICATIONS, LLC 722   2022-01-15   
650-643 3 Palo Alto CA   649C ONVOY, LLC - CA 722   2022-01-15   
650-643 4 Palo Alto CA   649C ONVOY, LLC - CA 722   2022-01-15   
650-643 5 Palo Alto CA   649C ONVOY, LLC - CA 722   2022-01-15   
650-643 6 Palo Alto CA   6529 T-MOBILE USA, INC. 722   2022-01-14   
650-643 7 Palo Alto CA   6529 T-MOBILE USA, INC. 722   2022-01-14   
650-643 8 Palo Alto CA   6529 T-MOBILE USA, INC. 722   2022-01-14   
650-643 9 Palo Alto CA   6529 T-MOBILE USA, INC. 722   2022-01-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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