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: 944

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-944 A Palmdale: Palmdale DA CA LTRKCA11DS1  9740 PACIFIC BELL 730      
661-944 0 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 1 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 2 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 3 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 4 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 5 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 6 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 7 Palmdale: Palmdale DA CA   6529 T-MOBILE USA, INC. 730   2006-05-13   
661-944 8 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      
661-944 9 Palmdale: Palmdale DA CA   9740 PACIFIC BELL 730      

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

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