Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-300 A Guadalupe CA SNLOCA01XFX  649C ONVOY, LLC - CA 740      
820-300 0 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-300 1 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-300 2 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-05-10   
820-300 3 Guadalupe CA   965H FRACTEL, LLC 740   2019-06-12   
820-300 4 Guadalupe CA   649C ONVOY, LLC - CA 740   2020-06-08   
820-300 5 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-09-15   
820-300 6 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-03-04   
820-300 7 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-03-04   
820-300 8 Guadalupe CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2020-03-09   
820-300 9 Guadalupe CA   073H TELNYX LLC 740   2021-03-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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