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.

Whiting, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-397 A SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-397 1 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-397 2 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-397 7 SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-455 A WHNGIAACRL0  4092 COMMCHOICE OF IOWA, LLC 630      
712-458 A WHNGIACORS4  9631 QWEST CORPORATION 630      
712-458 0 SXCYIADTUMD  073H TELNYX LLC 630      
712-458 1 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-458 2 WHNGIACORS4  9631 QWEST CORPORATION 630      
712-458 3 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-458 4 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-458 5 WHNGIACORS4  9631 QWEST CORPORATION 630      
712-458 6 SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-458 7 SXCYIADTQMD  508J CENTURYLINK COMMUNICATIONS, LLC 630      
712-458 8 SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-458 9 SXCYIADT9MD  221F ONVOY, LLC - IA 630      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.