Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 435 [Rate centres in NPA 435] [Dial plan for NPA 435]

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-278 A Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-278 0 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2021-02-12   
435-278 1 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2022-06-26   
435-278 2 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2023-09-14   
435-278 3 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2024-10-26   
435-278 4 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2024-07-11   
435-278 5 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2024-11-27   
435-278 6 Enterprise (Washington) UT   6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2025-04-13   
435-278 7 Enterprise (Washington) UT   6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2025-09-10   
435-278 8 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2021-10-28   
435-278 9 Enterprise (Washington) UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2022-11-03   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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