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 93 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-249 2 Chicago Zone 11-O'Hare IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-05-12   
773-249 3 Chicago Zone 11-O'Hare IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2004-11-12   
773-249 4 Chicago Zone 11-O'Hare IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2006-06-03   
773-249 5 Chicago Zone 11-O'Hare IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2008-07-02   
773-249 6 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-05-22   
773-249 7 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-05-22   
773-249 8 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2010-02-26   
773-249 9 Chicago Zone 11-O'Hare IL   224C ONVOY, LLC 358   2016-05-22   
773-250 A Chicago Zone 02-Irving IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-250 0 Chicago Zone 02-Irving IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-250 1 Chicago Zone 02-Irving IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-250 2 Chicago Zone 02-Irving IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-250 3 Chicago Zone 02-Irving IL   224C ONVOY, LLC 358   2015-12-31   
773-250 4 Chicago Zone 02-Irving IL   6664 SPRINT SPECTRUM L.P. 358   2005-11-19   
773-250 5 Chicago Zone 02-Irving IL   5447 ACCESS ONE, INC. - IL 358   2006-01-20   
773-250 6 Chicago Zone 02-Irving IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-250 7 Chicago Zone 02-Irving IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-24   
773-250 8 Chicago Zone 02-Irving IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-250 9 Chicago Zone 02-Irving IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-251 A Chicago Zone 03-Kildare IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-252 A Chicago Zone 04-Humboldt IL CHCGILHBDS1  9329 AMERITECH ILLINOIS 358      
773-253 A Chicago Zone 10-Beverly IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-253 0 Chicago Zone 10-Beverly IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-253 1 Chicago Zone 10-Beverly IL   6664 SPRINT SPECTRUM L.P. 358   2007-03-29   
773-253 2 Chicago Zone 10-Beverly IL   667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358   2005-06-24   
773-253 3 Chicago Zone 10-Beverly IL   5447 ACCESS ONE, INC. - IL 358   2006-01-20   
773-253 4 Chicago Zone 10-Beverly IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2005-03-14   
773-253 5 Chicago Zone 10-Beverly IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2005-03-14   
773-253 6 Chicago Zone 10-Beverly IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-04-30   
773-253 7 Chicago Zone 10-Beverly IL   667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358   2007-08-02   
773-253 8 Chicago Zone 10-Beverly IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358      
773-253 9 Chicago Zone 10-Beverly IL   667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358   2005-10-28   
773-254 A Chicago Zone 06-Lafayette IL CHCGILLADS0  9329 AMERITECH ILLINOIS 358      
773-255 A Chicago Zone 03-Kildare IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-256 A Chicago Zone 07-Hyde Park IL CHCGILDODS0  9329 AMERITECH ILLINOIS 358      
773-256 0 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 1 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 2 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 3 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 4 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 5 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 6 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-256 7 Chicago Zone 07-Hyde Park IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-03-05   
773-256 8 Chicago Zone 07-Hyde Park IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-03-05   
773-256 9 Chicago Zone 07-Hyde Park IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2005-05-21   
773-257 A Chicago Zone 06-Lawndale IL CHCGILLDDS0  9329 AMERITECH ILLINOIS 358      
773-257 0 Chicago Zone 06-Lawndale IL   9329 AMERITECH ILLINOIS 358      
773-257 1 Chicago Zone 06-Lawndale IL   9329 AMERITECH ILLINOIS 358      
773-257 2 Chicago Zone 06-Lawndale IL   9329 AMERITECH ILLINOIS 358      
773-257 3 Chicago Zone 06-Lawndale IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   

<< 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 93 >>

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.