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.
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NPA: 413 [Rate centres in NPA 413] [Dial plan for NPA 413]

NXX: 605

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-605 A Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   
413-605 5 Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   
413-605 6 Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   
413-605 7 Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   
413-605 8 Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   
413-605 9 Chicopee MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2026-03-05   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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