Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
779-242 3 Joliet IL 624H ONVOY SPECTRUM, LLC 358   2021-07-10   
779-252 3 Plainfield IL 624H ONVOY SPECTRUM, LLC 358   2025-05-12   
779-257 6 Wilmington IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-258 8 Herscher IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-259 9 Manteno IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-267 5 Joliet IL 624H ONVOY SPECTRUM, LLC 358   2020-07-01   
779-267 6 Joliet IL 624H ONVOY SPECTRUM, LLC 358   2020-07-01   
779-267 7 Joliet IL 624H ONVOY SPECTRUM, LLC 358   2020-07-01   
779-268 8 St Anne IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-273 8 Danforth IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-280 8 Donovan IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-282 8 Martinton IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-283 0 Richmond IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-284 8 Sheldon IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-285 8 Sheridan IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-286 8 Spring Grove IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-287 3 Union IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-288 0 Beaverville IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-290 8 Milford IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-291 0 Wonder Lake IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-292 0 Onarga IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-294 8 Harding IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-295 0 Mazon IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-331 7 Kankakee IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-336 3 Woodstock IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-337 0 Woodland IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-338 8 Crescent City IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-342 4 Dwight IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-376 9 Grant Park IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-378 6 McHenry IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-381 2 La Salle IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-384 0 Harvard IL 624H ONVOY SPECTRUM, LLC 358   2024-04-20   
779-385 0 Momence IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-388 A Crystal Lake IL 624H ONVOY SPECTRUM, LLC 358   2024-05-25   
779-388 0 Crystal Lake IL 624H ONVOY SPECTRUM, LLC 358   2024-05-25   
779-390 0 Lockport IL 624H ONVOY SPECTRUM, LLC 358   2024-05-15   
779-391 A New Lenox IL 624H ONVOY SPECTRUM, LLC 358   2024-05-20   
779-391 0 New Lenox IL 624H ONVOY SPECTRUM, LLC 358   2024-05-20   
779-392 A Oglesby IL 624H ONVOY SPECTRUM, LLC 358   2024-05-20   
779-392 0 Oglesby IL 624H ONVOY SPECTRUM, LLC 358   2024-05-20   
779-393 A Watseka IL 624H ONVOY SPECTRUM, LLC 358   2024-06-02   
779-393 0 Watseka IL 624H ONVOY SPECTRUM, LLC 358   2024-06-02   
779-394 A Wellington IL 624H ONVOY SPECTRUM, LLC 358   2024-06-02   
779-394 0 Wellington IL 624H ONVOY SPECTRUM, LLC 358   2024-06-02   
779-426 8 Manhattan IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-463 9 Morris IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-465 2 Braidwood IL 624H ONVOY SPECTRUM, LLC 358   2021-11-13   
779-465 5 Braidwood IL 624H ONVOY SPECTRUM, LLC 358   2021-06-27   
779-465 9 Braidwood IL 624H ONVOY SPECTRUM, LLC 358   2021-11-13   
779-599 8 Paw Paw IL 624H ONVOY SPECTRUM, LLC 358   2024-04-28   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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