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: 417

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-417 A San Fernando: Granada Hills DA CA   624H ONVOY SPECTRUM, LLC 730   2025-02-27   
818-417 1 San Fernando: Granada Hills DA CA   624H ONVOY SPECTRUM, LLC 730   2025-02-27   
818-417 2 San Fernando: Granada Hills DA CA   516C AT&T CORP. 730   2026-01-06   
818-417 7 San Fernando: Granada Hills DA CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2025-06-09   
818-417 8 San Fernando: Granada Hills DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-07-11   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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