Area code 773 was first put in service October 12, 1996. Area code 773 is in USA (Illinois). 1-800-database has 1452 records on file with a phone number in the area code of (773) and 241 comments.
The carriers providing phone numbers in 773 area code are: Allegiance Telecom, American Messaging (am), Ameritech Illinois, AT&T Local, Bandwidth.com Clec, Broadwing Communications, Cellco Partnership DBA Verizon Wireless, Cimco Communications, Comcast Phone Of Illinois DBA Comco, Cricket Communications, First Communications LLC, Global Crossing Local Services-il, Indiana Paging Ntwk, Level 3 Communications, Mcimetro Access Transmission Services LLC, Mci Worldcom Communications, Neutral Tandem-illinois, New Cingular Wireless PCS, Ovation Communications Of Illinois, Paetec Communications, Peerless Network Of Illinois, Rcn Telecom Services Of Illinois, Sigecom, Sprint Spectrum L.p., Teleport Communications America, T-mobile Usa, Usa Mobility Wireless, Xo Illinois, Ymax Communications Corp..
Counties located in area code 773 are: COOK.
Largest city: Chicago
In service since: 10/12/1996
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