uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K1MFP callsign genealogy

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by K1MFP's current licensee, walking backwards.

  1. K7NCactive· E
    Boardman, James HWAgranted 2020-08-01
  2. WD3Bactive· E
    LIPP, CHRISTOPHER JSCgranted 2022-10-21
  3. KG4OHUcancelled· E
    LIPP, CHRISTOPHER JSCgranted 2022-03-29cancelled 2022-10-21

Successor callsigns

Callsigns held now by people who previously held K1MFP.

  1. KD7GFBcancelled· G
    COLLINS JR, CHARLES LAZgranted 2001-02-14cancelled 2003-05-30

All historical holders

Every license row we've seen with the callsign K1MFP, oldest first.

  • Collins Jr, Charles L AZ
    2018-07-13 active
  • —
    — → cancelled 1999-07-27
← Back to K1MFP License history →