Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-678 A Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 0 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 1 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 2 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 3 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 4 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 5 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 6 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 7 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 8 Northridge CA NORGCA11DS0  9740 PACIFIC BELL 730      
818-678 9 Northridge CA   793K TWC IP ENABLED SERVICES, LLC 730   2007-01-10   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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