Winter 2026 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | KRVK-FM | |
| Frequency: | 107.9 | |
| Station Name: | 107.9 JACK FM | |
| Format: | Adult Hits | |
| Network(s): | PRMIER WWO | |
| City of License: | VISTA WEST/CASPER | |
| County of License: | Natrona | |
| Mailing Address: | 150 N NICHOLS CASPER, WY 82601 |
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| Phone: | 307-266-5252 | |
| Fax: | 307-235-9143 | |
| URL Address: | jackfmcasper.com | |
| Broadcasts in HD: |
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| Internet Streams: |
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Winter 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 .