Spring 2026 Station Information Profile (SIP) on File with Nielsen

 

Call Letter:	WTBC-FM
Frequency:	100.3
Station Name:	THROWBACK 100.3
Format:	Adult Hits
Network(s):	IND
City of License:	CHICAGO
County of License:	Cook
Mailing Address:	1 PRUDENTIAL PLZ STE 2780 CHICAGO, IL 60601
Phone:	312-946-4765
Fax:	312-297-5143
URL Address:	throwbackchicago.com
Broadcasts in HD:
Internet Streams:

Spring 2026 Reminder:

You no longer need to submit program information to Nielsen.

 

To view the simulcast combos that have requested Total Line Reporting, click here .