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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
224-353 A Roselle IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
224-764 A Arlington Heights IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-298 A Chicago Zone 01-Calumet IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-363 A Chicago Zone 01-Monroe IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 A Chicago Zone 01-Canal IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-643 A Chicago Zone 01-Superior IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-650 A Chicago Zone 01-Lakeshore IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-753 A Chicago Zone 01-Wabash IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 A Chicago Zone 01-Canal IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-854 A Chicago Zone 01-Franklin IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-955 A Chicago Zone 01-Illinois Dearborn IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
331-684 A Aurora IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-216 A Big Rock IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-301 A Aurora IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-310 A Downers Grove IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-313 A Geneva IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-396 A Lombard IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-468 A Hinsdale IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
630-607 A Elmhurst IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-322 A Calumet City IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-355 A Chicago Heights IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-568 A Oak Lawn IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-662 A Tinley Park IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-872 A Lansing IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-893 A Harvey IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
708-961 A Beecher IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-439 A Chicago Zone 03-Newcastle IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-688 A Chicago Zone 05-Austin IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-789 A Chicago Zone 08-Portsmouth IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-855 A Chicago Zone 07-Oakland IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-856 A Chicago Zone 02-Rogers Park IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-857 A Chicago Zone 04-Lakeview IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-937 A Chicago Zone 08-Portsmouth IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
773-944 A Chicago Zone 02-Edgewater IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-214 A Kankakee IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-644 A Crescent City IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-649 A Gardner IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-651 A Joliet IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-660 A Lockport IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-661 A Morris IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-665 A Ottawa IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-679 A McHenry IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-680 A Manhattan IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-687 A Woodstock IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-691 A Utica IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-733 A Plainfield IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-771 A Ashkum IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-781 A Chebanse IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-783 A Gilman IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-785 A Watseka IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
847-213 A Skokie IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
847-453 A Hampshire IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
847-960 A Algonquin IL 8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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