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: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

<< 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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-798 7 Chicago Zone 07-Stewart IL   6529 T-MOBILE USA, INC. 358   2010-09-03   
773-798 8 Chicago Zone 07-Stewart IL   6529 T-MOBILE USA, INC. 358   2010-09-03   
773-798 9 Chicago Zone 07-Stewart IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-10-27   
773-799 A Chicago Zone 04-Humboldt IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-799 0 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2006-10-01   
773-799 1 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2006-10-01   
773-799 2 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-799 3 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-799 4 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2004-06-28   
773-799 5 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2004-08-16   
773-799 6 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2006-06-01   
773-799 7 Chicago Zone 04-Humboldt IL   6529 T-MOBILE USA, INC. 358   2006-06-01   
773-799 8 Chicago Zone 04-Humboldt IL   516C AT&T CORP. 358   2006-07-07   
773-799 9 Chicago Zone 04-Humboldt IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-800 A Chicago Zone 02-Edgewater IL CHCGILGMRS0  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-08-09   
773-800 0 Chicago Zone 02-Edgewater IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-02-25   
773-800 1 Chicago Zone 02-Edgewater IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-02-25   
773-800 2 Chicago Zone 02-Edgewater IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-08-09   
773-800 4 Chicago Zone 02-Edgewater IL   6664 SPRINT SPECTRUM L.P. 358   2009-11-23   
773-800 5 Chicago Zone 02-Edgewater IL   6664 SPRINT SPECTRUM L.P. 358   2009-11-23   
773-800 6 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2013-07-28   
773-800 8 Chicago Zone 02-Edgewater IL   6664 SPRINT SPECTRUM L.P. 358   2009-11-23   
773-800 9 Chicago Zone 02-Edgewater IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-02-25   
773-801 A Chicago Zone 06-Kedzie IL CHCGILLADS0  9329 AMERITECH ILLINOIS 358   2006-06-18   
773-801 0 Chicago Zone 06-Kedzie IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2006-09-10   
773-801 1 Chicago Zone 06-Kedzie IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2006-09-10   
773-801 2 Chicago Zone 06-Kedzie IL   9329 AMERITECH ILLINOIS 358   2006-06-20   
773-801 3 Chicago Zone 06-Kedzie IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-04-19   
773-801 4 Chicago Zone 06-Kedzie IL   6664 SPRINT SPECTRUM L.P. 358   2007-05-19   
773-801 5 Chicago Zone 06-Kedzie IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-08-09   
773-801 7 Chicago Zone 06-Kedzie IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-09-16   
773-801 8 Chicago Zone 06-Kedzie IL   6529 T-MOBILE USA, INC. 358   2007-06-19   
773-801 9 Chicago Zone 06-Kedzie IL   6529 T-MOBILE USA, INC. 358   2008-01-04   
773-802 A Chicago Zone 01-Wabash IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-803 A Chicago Zone 03-Kildare IL BRDVILBOCM1  6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-803 0 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-07-30   
773-803 1 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-07-30   
773-803 2 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-07-30   
773-803 3 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-07-30   
773-803 4 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-07-30   
773-803 5 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-803 6 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-803 7 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-803 8 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-803 9 Chicago Zone 03-Kildare IL   6664 SPRINT SPECTRUM L.P. 358   2007-04-29   
773-804 A Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-804 0 Chicago Zone 05-Merrimac IL   9329 AMERITECH ILLINOIS 358      
773-804 1 Chicago Zone 05-Merrimac IL   9329 AMERITECH ILLINOIS 358      
773-804 2 Chicago Zone 05-Merrimac IL   9329 AMERITECH ILLINOIS 358      
773-804 3 Chicago Zone 05-Merrimac IL   9329 AMERITECH ILLINOIS 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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 >>

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.