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.

Florida, NY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
845-508 A   612K CSC VOICE, LLC 133      
845-508 0 PGHKNYSHX6Y  793K TWC IP ENABLED SERVICES, LLC 133   2019-12-12   
845-508 1   490J BOOST SUBSCRIBERCO L.L.C. 133   2025-04-10   
845-508 3 PGHKNYSHXJX  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 133   2018-08-14   
845-508 6   612K CSC VOICE, LLC 133   2004-10-11   
845-508 9 PGHKNYWSDMD  818H PEERING HUB, INC. - NY 133   2023-08-09   
845-651 A FLRDNYXARS0  0135 ALTEVA OF WARWICK LLC 133      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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