Fall 2025 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | WTNR-FM | |
| Frequency: | 107.3 | |
| Station Name: | THUNDER 107.3 | |
| Format: | Country | |
| Network(s): | IND | |
| City of License: | GREENVLE/GRNDRPDS | |
| County of License: | Montcalm | |
| Mailing Address: | 60 MONROE CTR ST N W STE 300 GRAND RAPIDS, MI 49503 |
|
| Phone: | 616-774-8461 | |
| Fax: | 616-774-0351 | |
| URL Address: | www.thunder1073.com | |
| Broadcasts in HD: |
|
|
| Internet Streams: |
|
|
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 .