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
773-358 3 Chicago Zone 07-Oakland IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2004-09-12   
773-358 4 Chicago Zone 07-Oakland IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-358 5 Chicago Zone 07-Oakland IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358   2000-10-12   
773-358 6 Chicago Zone 07-Oakland IL   5917 FIRST COMMUNICATIONS, LLC 358   2006-01-18   
773-358 7 Chicago Zone 07-Oakland IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2001-05-01   
773-358 8 Chicago Zone 07-Oakland IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-06-13   
773-358 9 Chicago Zone 07-Oakland IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-359 A Chicago Zone 09-South Chicago IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-359 0 Chicago Zone 09-South Chicago IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2000-08-07   
773-359 1 Chicago Zone 09-South Chicago IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2000-10-16   
773-359 2 Chicago Zone 09-South Chicago IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2008-12-12   
773-359 3 Chicago Zone 09-South Chicago IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
773-359 4 Chicago Zone 09-South Chicago IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2008-12-12   
773-359 5 Chicago Zone 09-South Chicago IL   9329 AMERITECH ILLINOIS 358   2000-07-07   
773-359 6 Chicago Zone 09-South Chicago IL   667E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 358   2007-08-02   
773-359 7 Chicago Zone 09-South Chicago IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-359 8 Chicago Zone 09-South Chicago IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-359 9 Chicago Zone 09-South Chicago IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-360 A Chicago Zone 04-Humboldt IL CHCGILABDS0  7721 BROADWING COMMUNICATIONS, LLC - IL 358      
773-360 0 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-360 1 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-09-07   
773-360 2 Chicago Zone 04-Humboldt IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
773-360 3 Chicago Zone 04-Humboldt IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2006-03-05   
773-360 4 Chicago Zone 04-Humboldt IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2019-02-09   
773-360 5 Chicago Zone 04-Humboldt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-24   
773-360 6 Chicago Zone 04-Humboldt IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2006-05-12   
773-360 7 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2006-06-02   
773-360 8 Chicago Zone 04-Humboldt IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2006-03-31   
773-360 9 Chicago Zone 04-Humboldt IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2005-07-04   
773-361 A Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 AMERITECH ILLINOIS 358      
773-362 A Chicago Zone 08-Portsmouth IL CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358      
773-362 0 Chicago Zone 08-Portsmouth IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358      
773-362 1 Chicago Zone 08-Portsmouth IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2006-02-18   
773-362 2 Chicago Zone 08-Portsmouth IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2004-09-15   
773-362 3 Chicago Zone 08-Portsmouth IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2004-11-12   
773-362 4 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-15   
773-362 5 Chicago Zone 08-Portsmouth IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
773-362 6 Chicago Zone 08-Portsmouth IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2006-04-10   
773-362 7 Chicago Zone 08-Portsmouth IL   8760 US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL 358   2009-10-16   
773-362 8 Chicago Zone 08-Portsmouth IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2003-12-27   
773-362 9 Chicago Zone 08-Portsmouth IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358      
773-363 A Chicago Zone 07-Hyde Park IL CHCGILDODS0  9329 AMERITECH ILLINOIS 358      
773-364 A Chicago Zone 09-Mitchell IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-364 0 Chicago Zone 09-Mitchell IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
773-364 1 Chicago Zone 09-Mitchell IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2004-09-15   
773-364 2 Chicago Zone 09-Mitchell IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2007-11-23   
773-364 3 Chicago Zone 09-Mitchell IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2006-10-08   
773-364 4 Chicago Zone 09-Mitchell IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2006-10-08   
773-364 5 Chicago Zone 09-Mitchell IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-364 6 Chicago Zone 09-Mitchell IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   

<< 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: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.