Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-733 9 Chicago Zone 06-Kedzie IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-10-16   
773-734 A Chicago Zone 09-South Chicago IL CHCGILSCDS0  9329 ILLINOIS BELL TEL CO 358      
773-735 A Chicago Zone 08-Portsmouth IL CHCGILPMDS0  9329 ILLINOIS BELL TEL CO 358      
773-736 A Chicago Zone 03-Kildare IL CHCGILKIDS0  9329 ILLINOIS BELL TEL CO 358      
773-737 A Chicago Zone 08-Prospect IL CHCGILPRDS0  9329 ILLINOIS BELL TEL CO 358      
773-738 A Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358      
773-738 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-10-13   
773-738 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-11-05   
773-738 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-11-05   
773-738 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-11-05   
773-738 4 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-11-05   
773-738 5 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-11-05   
773-738 6 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-10-13   
773-738 7 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-10-13   
773-738 8 Chicago Zone 03-Kildare IL ELGNILOTGT5  5562 METROPCS, INC. 358   2007-10-13   
773-738 9 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2007-10-13   
773-739 A Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-739 0 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2011-07-26   
773-739 1 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-09-17   
773-739 2 Chicago Zone 02-Edgewater IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-24   
773-739 3 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2011-07-26   
773-739 4 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2011-07-26   
773-739 5 Chicago Zone 02-Edgewater IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2012-01-27   
773-739 6 Chicago Zone 02-Edgewater IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-07-10   
773-739 7 Chicago Zone 02-Edgewater IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-09-17   
773-739 8 Chicago Zone 02-Edgewater IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2020-11-06   
773-739 9 Chicago Zone 02-Edgewater IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2000-10-12   
773-740 A Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-09-26   
773-740 0 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-09-29   
773-740 1 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-09-29   
773-740 2 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-11-08   
773-740 3 Chicago Zone 02-Edgewater IL   224C ONVOY, LLC 358   2025-11-08   
773-740 4 Chicago Zone 02-Edgewater IL   321J HD CARRIER LLC 358   2025-10-04   
773-740 9 Chicago Zone 02-Edgewater IL   6529 T-MOBILE USA, INC. 358   2025-09-26   
773-741 A Chicago Zone 11-O'Hare IL DSPLILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-741 0 Chicago Zone 11-O'Hare IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2019-11-17   
773-741 1 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358   2016-02-03   
773-741 2 Chicago Zone 11-O'Hare IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-07-16   
773-741 4 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358   2016-02-03   
773-741 8 Chicago Zone 11-O'Hare IL DSPLILXLDS0  9329 ILLINOIS BELL TEL CO 358      
773-741 9 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358   2016-02-03   
773-742 A Chicago Zone 03-Newcastle IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-743 A Chicago Zone 02-Rogers Park IL CHCGILRPDS0  9329 ILLINOIS BELL TEL CO 358      
773-744 A Chicago Zone 06-Lafayette IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-745 A Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-746 A Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-746 0 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-05   
773-746 1 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-05   
773-746 2 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-05   
773-746 3 Chicago Zone 03-Kildare IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-05   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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