Fall 2025 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | WWIZ-FM | |
| Frequency: | 103.9 | |
| Station Name: | Z104 | |
| Format: | Adult Contemporary | |
| Network(s): | WWO | |
| City of License: | WSTMDDLSX/YNGSTWN | |
| County of License: | Mercer | |
| Mailing Address: | 4040 SIMON RD YOUNGSTOWN, OH 44512 |
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| Phone: | 330-783-1000 | |
| Fax: | 330-783-0060 | |
| URL Address: | www.z104youngstown.com | |
| Broadcasts in HD: |
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| Internet Streams: |
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Fall 2025 Reminder:
You no longer need to submit program information to Nielsen.
To view the simulcast combos that have requested Total Line Reporting, click here .