Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4DC callsign genealogy
Currently held by MCINTYRE, DEAN T
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 AI4DC's current licensee, walking backwards.
- MCINTYRE, DEAN TVAgranted 2011-08-04cancelled 2018-06-12
Successor callsigns
Callsigns held now by people who previously held AI4DC.
- Haworth, Mark RFLgranted 2023-11-28
All historical holders
Every license row we've seen with the callsign AI4DC, oldest first.
- Haworth, Mark R FL2003-12-16 → cancelled 2004-01-06
- MCINTYRE, DEAN T VA2018-06-12 active