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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-787 4 Chicago Zone 10-Beverly IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-787 5 Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-02-20   
773-787 6 Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-04-02   
773-787 7 Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-02-20   
773-787 8 Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-02-20   
773-787 9 Chicago Zone 10-Beverly IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-04-02   
773-788 A Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 0 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 1 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 2 Summit IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-18   
773-788 3 Summit IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-08-21   
773-788 4 Summit IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-08-21   
773-788 5 Summit IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-788 6 Summit IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-03-03   
773-788 7 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 8 Summit IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-788 9 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-789 A Chicago Zone 08-Portsmouth IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-789 0 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-04-04   
773-789 1 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-04-04   
773-789 2 Chicago Zone 08-Portsmouth IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-09-03   
773-789 3 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-04-04   
773-789 4 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-04-04   
773-789 5 Chicago Zone 08-Portsmouth IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-04-24   
773-789 6 Chicago Zone 08-Portsmouth IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-01   
773-789 7 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-18   
773-789 8 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-18   
773-789 9 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-18   
773-790 A Chicago Zone 03-Kildare IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-790 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-06-28   
773-790 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-06-28   
773-790 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-06-28   
773-790 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-06-28   
773-790 4 Chicago Zone 03-Kildare IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-790 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-06-28   
773-790 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-06-28   
773-790 7 Chicago Zone 03-Kildare IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-17   
773-790 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-11-09   
773-790 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-11-09   
773-791 A Chicago Zone 03-Kildare IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-792 A Chicago Zone 03-Newcastle IL CHCGILNEDS0  9329 ILLINOIS BELL TEL CO 358      
773-793 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 4 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-793 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-794 A Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 0 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 1 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 2 Chicago Zone 03-Kildare IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-794 3 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 4 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 5 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 6 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 7 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 8 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-794 9 Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-795 A Chicago Zone 07-Hyde Park IL CHCGILDODS0  9329 ILLINOIS BELL TEL CO 358      
773-796 A Chicago Zone 02-Edgewater IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-796 0 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2011-10-03   
773-796 1 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2011-10-03   
773-796 2 Chicago Zone 02-Edgewater IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-23   
773-796 3 Chicago Zone 02-Edgewater IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-23   
773-796 4 Chicago Zone 02-Edgewater IL CHCGIL24DS6  224C ONVOY, LLC 358   2011-09-10   
773-796 5 Chicago Zone 02-Edgewater IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-12-12   
773-796 6 Chicago Zone 02-Edgewater IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-02-06   
773-796 7 Chicago Zone 02-Edgewater IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-02-06   
773-796 8 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-02-01   
773-796 9 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-02-01   
773-797 A Chicago Zone 05-Austin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-797 0 Chicago Zone 05-Austin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-797 1 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2022-08-27   
773-797 2 Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-26   
773-797 3 Chicago Zone 05-Austin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-797 4 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-03-08   
773-797 5 Chicago Zone 05-Austin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-797 6 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-03-08   
773-797 7 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-04-09   
773-797 8 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-04-09   
773-797 9 Chicago Zone 05-Austin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-798 A Chicago Zone 07-Stewart IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-798 0 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2020-10-05   
773-798 1 Chicago Zone 07-Stewart IL ELGNILOTGT5  5562 METROPCS, INC. 358   2014-08-19   
773-798 2 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2020-10-05   
773-798 3 Chicago Zone 07-Stewart IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2018-08-23   
773-798 4 Chicago Zone 07-Stewart IL ELGNILOTGT5  5562 METROPCS, INC. 358   2014-08-19   
773-798 5 Chicago Zone 07-Stewart IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2013-09-22   
773-798 6 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2020-10-05   
773-798 7 Chicago Zone 07-Stewart IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2010-09-03   
773-798 8 Chicago Zone 07-Stewart IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2010-09-03   
773-798 9 Chicago Zone 07-Stewart IL RVDLILBDAMD  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 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2006-10-01   
773-799 1 Chicago Zone 04-Humboldt IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2006-10-01   

<< 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 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.