Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-731 A San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
310-731 0 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-01-11   
310-731 1 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-23   
310-731 2 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-04-05   
310-731 3 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-04-05   
310-731 4 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-04-05   
310-731 5 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-04-05   
310-731 6 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-06-15   
310-731 7 San Pedro CA   114J EXIANT COMMUNICATIONS LLC 730   2026-04-30   
310-731 8 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-23   
310-731 9 San Pedro CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-23   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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