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: 844

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-844 A Monticello IA CDRRIAIC2MD  593K MCC TELEPHONY LLC 635      
319-844 0 Monticello IA MNTIIAAKDS0  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-05-14   
319-844 1 Monticello IA   593K MCC TELEPHONY LLC 635   2010-05-15   
319-844 2 Monticello IA CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2019-07-22   
319-844 3 Monticello IA CDRRIAAX7MD  5562 METROPCS, INC. 635   2018-08-03   
319-844 4 Monticello IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2013-01-23   
319-844 5 Monticello IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2013-01-23   
319-844 7 Monticello IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2016-04-11   
319-844 8 Monticello IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2016-04-11   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.