Confidence: Medium · Source: FCC ULS · As of 2026-10-26
N0BBL callsign genealogy
Currently held by RITTGERS, MARY E
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 N0BBL's current licensee, walking backwards.
- WANG, JingweiORgranted 2026-08-21cancelled 2026-09-09
Successor callsigns
Callsigns held now by people who previously held N0BBL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0BBL, oldest first.
- RITTGERS, MARY E IA1994-09-14 → cancelled 2006-09-15
- WANG, Jingwei OR2026-09-09 active