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.

NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-281 A Hudson IA CDRRIADTX2X  508J CENTURYLINK COMMUNICATIONS, LLC 635      
319-281 0 Hudson IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2018-04-15   
319-281 1 Hudson IA MNTIIAAKDS0  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-05-11   
319-281 2 Hudson IA IWCYIA701MD  073H TELNYX LLC 635   2018-06-27   
319-281 3 Hudson IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-03-14   
319-281 4 Hudson IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-03-14   
319-281 5 Hudson IA CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2023-01-08   
319-281 7 Hudson IA CDRRIADTX2X  508J CENTURYLINK COMMUNICATIONS, LLC 635   2017-07-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.