Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 460

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-460 A Danbury CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-460 0 Danbury CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-08-06   
203-460 1 Danbury CT   5562 METROPCS, INC. 920   2004-01-31   
203-460 2 Danbury CT   5562 METROPCS, INC. 920   2005-11-14   
203-460 3 Danbury CT   7421 AT&T - LOCAL 920   2004-03-29   
203-460 4 Danbury CT   5562 METROPCS, INC. 920   2004-10-18   
203-460 5 Danbury CT   7421 AT&T - LOCAL 920      
203-460 6 Danbury CT   5562 METROPCS, INC. 920   2005-07-09   
203-460 7 Danbury CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-02-10   
203-460 8 Danbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
203-460 9 Danbury CT   7421 AT&T - LOCAL 920      

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

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