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 94 95 96 97 98 99 100 101 102 103 104 105 106 107 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-417 3 Chicago Zone 05-Austin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2006-08-24   
773-417 4 Chicago Zone 05-Austin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2006-09-09   
773-417 5 Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-07-02   
773-417 6 Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-417 7 Chicago Zone 05-Austin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2008-11-26   
773-417 8 Chicago Zone 05-Austin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2008-11-26   
773-417 9 Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-418 A Chicago Zone 03-Kildare IL CHCGILMF2MD  6664 SPRINT SPECTRUM, L.P. 358      
773-418 0 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 1 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 2 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 3 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 4 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 5 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 6 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 7 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 8 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-418 9 Chicago Zone 03-Kildare IL CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-419 A Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
773-420 A Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 0 Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 1 Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 2 Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 3 Chicago Zone 07-Stewart IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-420 4 Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 5 Chicago Zone 07-Stewart IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-420 6 Chicago Zone 07-Stewart IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-06-13   
773-420 7 Chicago Zone 07-Stewart IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2005-06-13   
773-420 8 Chicago Zone 07-Stewart IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-03-05   
773-420 9 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-421 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-422 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
773-423 A Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 0 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 1 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 2 Chicago Zone 02-Edgewater IL CHCGILWUX1X  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2004-03-29   
773-423 3 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 4 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 5 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 6 Chicago Zone 02-Edgewater IL OKBRILDODS0  259E YMAX COMMUNICATIONS CORP. - IL 358   2008-10-15   
773-423 7 Chicago Zone 02-Edgewater IL OKBRILDODS0  259E YMAX COMMUNICATIONS CORP. - IL 358   2008-10-15   
773-423 8 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-423 9 Chicago Zone 02-Edgewater IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-424 A Summit IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-424 0 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 1 Summit IL OKBRILOADC2  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-424 2 Summit IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-424 3 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 4 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-424 5 Summit IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 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 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 >>

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.