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.

Northbrook, IL

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
630-745 9 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 A CHCGILMF2MD  6664 SPRINT SPECTRUM, L.P. 358      
630-816 0 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 1 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 2 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 3 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 4 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 5 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 6 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 7 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 8 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
630-816 9 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-281 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-376 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-417 A CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 0 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 1 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 2 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 3 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 4 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 5 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 6 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 7 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 8 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-417 9 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358   2013-07-17   
708-454 A CHCGILWUDS4  6630 USA MOBILITY WIRELESS, INC. 358      
708-461 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-569 A CHCGILBWCM2  9748 AMERICAN MESSAGING SERVICES, LLC 358      
708-644 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-774 A CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 0 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 1 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 2 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 3 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 4 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 5 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 6 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 7 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 8 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-774 9 CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
708-817 A CHCGILWBXDZ  9748 AMERICAN MESSAGING SERVICES, LLC 358      
708-881 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-939 A CHCGILBWCM2  9748 AMERICAN MESSAGING SERVICES, LLC 358      
708-944 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
708-992 A CHCGILBWCM2  9748 AMERICAN MESSAGING SERVICES, LLC 358      
815-241 A CHCGILWBXDZ  9748 AMERICAN MESSAGING SERVICES, LLC 358      
847-203 A CHCGILWUDS4  6630 USA MOBILITY WIRELESS, INC. 358      
847-205 A NBRKILNBDS0  9329 ILLINOIS BELL TEL CO 358      
847-206 A CHCGILWBXDZ  9748 AMERICAN MESSAGING SERVICES, LLC 358      
847-210 A CHCGILWUDS4  6630 USA MOBILITY WIRELESS, INC. 358      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.