Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ACB callsign genealogy
Currently held by Criscuolo, Robert A
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 W4ACB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4ACB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ACB, oldest first.
- Criscuolo, Robert A FL2009-08-07 → cancelled 2021-08-10
- PASBRIG, CHRISTOPHER A FL2021-12-21 active