Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-489 A Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-489 0 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-01-16   
475-489 1 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-01-16   
475-489 2 Norwalk CT   145J TERRA NOVA TELECOM INC. 920   2026-02-05   
475-489 3 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-01-16   
475-489 4 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-01-16   
475-489 5 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2017-01-13   
475-489 6 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-03-29   
475-489 7 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-03-29   
475-489 8 Norwalk CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2016-03-29   
475-489 9 Norwalk CT   639C ONVOY, LLC - CT 920   2019-03-29   

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

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