Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2ISS callsign genealogy
Currently held by MC GRANE, THOMAS P
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 K2ISS's current licensee, walking backwards.
- SEIFERT, EDWARD RNJgranted 2007-09-06cancelled 2007-09-22
Successor callsigns
Callsigns held now by people who previously held K2ISS.
- MC GRANE, THOMAS PNYgranted 2011-05-13cancelled 2013-09-24
All historical holders
Every license row we've seen with the callsign K2ISS, oldest first.
- MC GRANE, THOMAS P NY1999-04-21 → cancelled 2001-08-10
- SEIFERT, EDWARD R NJ2017-06-26 active