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
773-666 1 Chicago Zone 04-Humboldt IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-07-18   
773-666 2 Chicago Zone 04-Humboldt IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-07-18   
773-666 3 Chicago Zone 04-Humboldt IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-11-14   
773-666 4 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2012-01-22   
773-666 5 Chicago Zone 04-Humboldt IL   516C AT&T CORP. 358   2011-07-19   
773-666 6 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2012-01-22   
773-666 7 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2012-01-22   
773-666 8 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2012-01-22   
773-666 9 Chicago Zone 04-Humboldt IL   224C ONVOY, LLC 358   2012-01-22   
773-667 A Chicago Zone 07-Hyde Park IL CHCGILDODS0  9329 AMERITECH ILLINOIS 358      
773-667 0 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 1 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 2 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 4 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 5 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 6 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 7 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 8 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-667 9 Chicago Zone 07-Hyde Park IL   9329 AMERITECH ILLINOIS 358      
773-668 A Chicago Zone 05-Austin IL CHCGILGMRS0  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-668 0 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-668 1 Chicago Zone 05-Austin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358   2009-11-27   
773-668 2 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 3 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 4 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 5 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 6 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 7 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-668 8 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-17   
773-668 9 Chicago Zone 05-Austin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-17   
773-669 A Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-669 0 Chicago Zone 05-Austin IL   224C ONVOY, LLC 358   2012-01-22   
773-669 1 Chicago Zone 05-Austin IL   224C ONVOY, LLC 358   2012-01-22   
773-669 2 Chicago Zone 05-Austin IL   224C ONVOY, LLC 358   2012-01-22   
773-669 3 Chicago Zone 05-Austin IL   224C ONVOY, LLC 358   2012-01-22   
773-669 4 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-24   
773-669 5 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
773-669 6 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
773-669 7 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
773-669 8 Chicago Zone 05-Austin IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
773-669 9 Chicago Zone 05-Austin IL   224C ONVOY, LLC 358   2012-01-22   
773-670 A Chicago Zone 03-Kildare IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
773-671 A Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358      
773-672 A Chicago Zone 10-Beverly IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358      
773-672 0 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2009-04-28   
773-672 1 Chicago Zone 10-Beverly IL   6529 T-MOBILE USA, INC. 358   2009-04-28   
773-672 2 Chicago Zone 10-Beverly IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-03-26   
773-672 3 Chicago Zone 10-Beverly IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-03   
773-672 4 Chicago Zone 10-Beverly IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-20   
773-672 5 Chicago Zone 10-Beverly IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2008-06-15   

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.