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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-900 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      
310-900 0 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 1 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 2 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 3 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 4 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 5 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 6 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 7 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 8 Compton: Compton DA CA   9740 PACIFIC BELL 730      
310-900 9 Compton: Compton DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-02-17   

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

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