Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-278 A Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730      
657-278 0 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 1 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 2 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 3 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 4 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 5 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 6 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 7 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 8 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   
657-278 9 Fullerton CA FUTNCA01DS0  9740 PACIFIC BELL 730   2008-12-21   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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