Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-256 A Rosamond CA RSMDCA11RS3  9740 PACIFIC BELL 734      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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