Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK2O callsign genealogy
Currently held by KAUFMAN, ALAN C
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 AK2O's current licensee, walking backwards.
- SHOEMAKER, KARL HWAgranted 1999-12-11cancelled 2006-06-24
Successor callsigns
Callsigns held now by people who previously held AK2O.
- KAUFMAN, ALAN CNYgranted 2000-05-30cancelled 2004-11-10
All historical holders
Every license row we've seen with the callsign AK2O, oldest first.
- KAUFMAN, ALAN C NY1998-11-24 → cancelled 2000-05-30
- SHOEMAKER, KARL H WA2026-06-04 active