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
773-437 8 Chicago Zone 09-South Chicago IL   7056 XO ILLINOIS, INC. 358   2007-05-13   
773-437 9 Chicago Zone 09-South Chicago IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-438 A Chicago Zone 01-Calumet IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
773-439 A Chicago Zone 03-Newcastle IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
773-439 0 Chicago Zone 03-Newcastle IL   6664 SPRINT SPECTRUM L.P. 358   2004-10-11   
773-439 1 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 2 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 3 Chicago Zone 03-Newcastle IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
773-439 4 Chicago Zone 03-Newcastle IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
773-439 5 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 6 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 7 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 8 Chicago Zone 03-Newcastle IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-439 9 Chicago Zone 03-Newcastle IL   6664 SPRINT SPECTRUM L.P. 358   2004-10-11   
773-440 A Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358      
773-440 0 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 1 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 2 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 3 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 4 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 5 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 6 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 7 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 8 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-440 9 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2005-03-25   
773-441 A Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-441 0 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 1 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 2 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 3 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 4 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 5 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 6 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 7 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 8 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-441 9 Chicago Zone 03-Kildare IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-442 A Chicago Zone 02-Irving IL EGVGILIFDS0  7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
773-442 0 Chicago Zone 02-Irving IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
773-442 1 Chicago Zone 02-Irving IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
773-442 2 Chicago Zone 02-Irving IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
773-442 3 Chicago Zone 02-Irving IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
773-442 4 Chicago Zone 02-Irving IL   9329 AMERITECH ILLINOIS 358   2000-06-13   
773-442 5 Chicago Zone 02-Irving IL   9329 AMERITECH ILLINOIS 358   2000-06-13   
773-442 6 Chicago Zone 02-Irving IL   9329 AMERITECH ILLINOIS 358   2000-06-13   
773-442 7 Chicago Zone 02-Irving IL   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-10-15   
773-442 8 Chicago Zone 02-Irving IL   9329 AMERITECH ILLINOIS 358   2001-04-24   
773-442 9 Chicago Zone 02-Irving IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
773-443 A Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358      
773-444 A Chicago Zone 03-Newcastle IL PRRGILXLDS1  9329 AMERITECH ILLINOIS 358      
773-444 0 Chicago Zone 03-Newcastle 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: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.