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: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-336 A Guadalupe CA SNBBCAXFXIY  965H FRACTEL, LLC 740      
820-336 0 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-07-28   
820-336 1 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-07-28   
820-336 2 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-12-13   
820-336 3 Guadalupe CA   6529 T-MOBILE USA, INC. 740   2024-01-23   
820-336 4 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-10-03   
820-336 5 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-10-03   
820-336 6 Guadalupe CA   516J TON80 COMMUNICATIONS, LLC 740   2021-09-16   
820-336 7 Guadalupe CA   649C ONVOY, LLC - CA 740   2021-12-13   
820-336 8 Guadalupe CA   965H FRACTEL, LLC 740   2021-05-14   
820-336 9 Guadalupe CA   624H ONVOY SPECTRUM, LLC 740   2021-12-15   

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

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