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.

Sergeant Bluff, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-228 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-237 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-247 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-257 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-271 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-285 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-823 A SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-823 0 SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-823 1 SXCYIA03DS1  7021 FIBERCOMM, LC 630      
712-823 2 SXCYIA03DS1  7021 FIBERCOMM, LC 630      
712-823 3 SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-823 4 SPNCIAAC2MD  6266 UNITED STATES CELLULAR - IA 630      
712-823 8 SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-823 9 SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-923 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-924 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-934 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-941 A SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-941 0   6529 T-MOBILE USA, INC. 630      
712-941 1   6529 T-MOBILE USA, INC. 630      
712-941 8   6529 T-MOBILE USA, INC. 630      
712-941 9 SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630      
712-942 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      
712-943 A SRBLIAXODS0  1260 NORTHWEST IOWA TELEPHONE, LLC 630      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.