N9TPB FCC License Search
🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 am CDT
Ask: hams within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI

KR4MCS

⏳ Not available yet — opens for vanity requests May 31, 2028, two years after the license was canceled (May 30, 2026).
2x3 call: any licensee can request it. No pending applications list it.

Not currently held · 1 holder on record

Previous holder: James R Eisenhauer

Held KR4MCS May 12, 2026 → May 30, 2026 · first licensed May 12, 2026 as KR4MCS · 2 licenses · FRN 0038223624

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

📡 On the air: APRS & digital spots

No APRS positions and no PSK Reporter reports for KR4MCS in the last 24 hours. Spots show up here within seconds of KR4MCS beaconing on APRS or being heard on FT8, FT4, CW (by skimmers) and other digital modes.