Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-375 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-378 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-409 A Livermore CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-412 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-414 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-440 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-448 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-464 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-507 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-519 A Pleasanton CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-542 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-586 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-596 A Pleasanton CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-597 A Pittsburg CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-628 A Antioch CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-708 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-719 A Dublin-San Ramon CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-768 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-783 A Antioch CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-784 A Livermore CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-785 A Dublin-San Ramon CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-786 A Bishop Ranch CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-787 A Concord CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-788 A Walnut Creek CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-789 A Sunol CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-813 A Antioch CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-872 A Pleasanton CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-918 A Pleasanton CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-989 A Pleasanton CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
925-999 A Dublin-San Ramon CA 6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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