Chicago's BIN 640
Because Truth Matters
WMFN (640 AM), branded as "Chicago's BIN 640", is an All News radio station licensed to Peotone, IL, and serves the Chicago radio market. The station is currently owned by Birach Broadcasting.
- Call sign: WMFN
- Frequency: 640 AM
- City of license: Peotone, IL
- Format: All News
- Owner: Birach Broadcasting
- Area Served: Chicago, IL