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.

Switch: CHCGIL24DS6

<< 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 OCN LATA LIR Eff date Disc date
815-479 4 Crystal Lake IL 224C ONVOY, LLC 358   2019-07-07   
815-483 2 Joliet IL 224C ONVOY, LLC 358   2004-09-15   
815-486 0 Donovan IL 224C ONVOY, LLC 358   2020-08-07   
815-486 3 Donovan IL 224C ONVOY, LLC 358   2020-08-07   
815-486 5 Donovan IL 224C ONVOY, LLC 358   2019-08-24   
815-495 1 Leland IL 224C ONVOY, LLC 358   2019-08-24   
815-496 4 Sheridan IL 224C ONVOY, LLC 358   2020-05-23   
815-507 8 Momence IL 224C ONVOY, LLC 358   2012-09-30   
815-513 6 Morris IL 224C ONVOY, LLC 358   2012-09-30   
815-513 7 Morris IL 224C ONVOY, LLC 358   2014-04-07   
815-515 4 Watseka IL 224C ONVOY, LLC 358   2016-03-28   
815-515 6 Watseka IL 224C ONVOY, LLC 358   2021-04-01   
815-515 7 Watseka IL 224C ONVOY, LLC 358   2021-04-01   
815-524 0 Lockport IL 224C ONVOY, LLC 358   2021-11-18   
815-527 0 Woodstock IL 224C ONVOY, LLC 358   2013-11-13   
815-527 3 Woodstock IL 224C ONVOY, LLC 358   2013-11-13   
815-527 4 Woodstock IL 224C ONVOY, LLC 358   2013-11-13   
815-527 8 Woodstock IL 224C ONVOY, LLC 358   2013-11-13   
815-550 0 Grant Park IL 224C ONVOY, LLC 358      
815-550 4 Grant Park IL 224C ONVOY, LLC 358      
815-550 5 Grant Park IL 224C ONVOY, LLC 358      
815-550 6 Grant Park IL 224C ONVOY, LLC 358      
815-550 7 Grant Park IL 224C ONVOY, LLC 358      
815-552 1 Lockport IL 224C ONVOY, LLC 358   2012-10-01   
815-552 8 Lockport IL 224C ONVOY, LLC 358   2014-05-15   
815-552 9 Lockport IL 224C ONVOY, LLC 358   2016-09-01   
815-556 6 Plainfield IL 224C ONVOY, LLC 358   2010-05-15   
815-560 0 Harvard IL 224C ONVOY, LLC 358   2012-10-01   
815-581 1 Spring Grove IL 224C ONVOY, LLC 358   2019-07-14   
815-581 8 Spring Grove IL 224C ONVOY, LLC 358   2018-07-30   
815-581 9 Spring Grove IL 224C ONVOY, LLC 358   2019-07-14   
815-584 0 Dwight IL 224C ONVOY, LLC 358   2016-04-11   
815-587 7 Ottawa IL 224C ONVOY, LLC 358   2014-07-07   
815-605 1 Grant Park IL 224C ONVOY, LLC 358   2012-10-01   
815-605 2 Grant Park IL 224C ONVOY, LLC 358   2018-12-27   
815-605 5 Grant Park IL 224C ONVOY, LLC 358   2016-03-26   
815-605 6 Grant Park IL 224C ONVOY, LLC 358   2016-03-26   
815-605 7 Grant Park IL 224C ONVOY, LLC 358   2014-09-26   
815-605 8 Grant Park IL 224C ONVOY, LLC 358   2014-09-26   
815-620 0 Minooka IL 224C ONVOY, LLC 358   2018-12-27   
815-620 3 Minooka IL 224C ONVOY, LLC 358   2023-08-12   
815-620 4 Minooka IL 224C ONVOY, LLC 358   2021-04-01   
815-620 5 Minooka IL 224C ONVOY, LLC 358   2021-04-01   
815-620 6 Minooka IL 224C ONVOY, LLC 358   2021-04-01   
815-620 7 Minooka IL 224C ONVOY, LLC 358   2021-04-01   
815-627 1 Paw Paw IL 224C ONVOY, LLC 358   2019-08-24   
815-634 6 Coal City IL 224C ONVOY, LLC 358   2012-09-30   
815-640 2 Ottawa IL 224C ONVOY, LLC 358   2023-08-12   
815-640 3 Ottawa IL 224C ONVOY, LLC 358   2023-08-12   
815-640 5 Ottawa IL 224C ONVOY, LLC 358   2023-08-12   

<< 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: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.