Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
840-236 5 Claremont-San Dimas CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-09-26   
840-238 A Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-238 0 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 1 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 2 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 3 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 4 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 5 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 6 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 7 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 8 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-238 9 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-11-17   
840-241 3 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-09-26   
840-241 4 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2026-02-17   
840-241 7 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2026-02-17   
840-243 2 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-03-16   
840-243 3 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-03-16   
840-243 4 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-03-16   
840-243 5 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-03-16   
840-246 4 Etiwanda CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-10-04   
840-249 4 Marshall CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-12-08   
840-249 5 Marshall CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-14   
840-249 6 Marshall CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-04-14   
840-249 7 Marshall CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-09-09   
840-252 7 Mentone CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-01-09   
840-252 8 Mentone CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-10-31   
840-254 7 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-05   
840-254 8 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-05   
840-254 9 Rialto CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-257 5 Colton CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-12-08   
840-258 3 Highland CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-08-22   
840-258 6 Highland CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-22   
840-259 A Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 2 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 3 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 4 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 5 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 6 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 7 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 8 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-259 9 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-06-30   
840-260 1 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-260 2 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-260 3 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-260 4 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-260 5 Pomona CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-31   
840-261 A Fontana CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-07-20   
840-261 0 Fontana CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-04-09   
840-261 1 Fontana CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-04-09   
840-261 2 Fontana CA 6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-04-09   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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