AI6H
Active2x1District 6
Competitive callsign — 25 applications filed with the FCC.
License HolderFOSTER, DAVID W
License ClassTechnician
Min. Class RequiredAmateur Extra
LocationBoulder, CO
Grant DateDec 6, 2025
Expiration DateJan 8, 2036
AI6H is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by FOSTER, DAVID W in Boulder, CO. This callsign has attracted significant interest in the amateur radio community, with 25 vanity applications filed with the FCC. The most recent was submitted by Bowman, Marvin J on Mar 7, 2014. AI6H has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .. -.... ....
CW Weight: 17 units(Ultra-light (very fast to send))
Voice Phonetics
Alpha India Six Hotel
Readability: 8/10(High readability)
License History
- Administrative Update AppliedAug 13, 2026
- License RenewedDec 6, 2025
- Administrative Update AppliedJan 26, 2018
- License RenewedJan 8, 2016
- Administrative Update AppliedFeb 20, 2013
- Administrative Update AppliedJun 29, 2006
- Vanity Callsign GrantedMar 6, 2004
- License IssuedMar 6, 2004
- License CanceledMar 24, 2001
- License IssuedJul 1, 2000
- License ExpiredMar 23, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.