Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KB3MPO
CancelledCallahan III, John P
- Location
- West Chester, PA
- Class
- Amateur Extra
- Granted
- 2005-09-12
- Expires
- 2015-09-12
- FRN
- 0014006738
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Vanity availability
AvailableAvailable now
KB3MPO cleared its 2-year hold on 2013-11-28. Eligible for vanity application.
Last held by Callahan III, John P (PA).
Confidence: High
Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.
Callsign genealogy
Full chain →Prior holders later became
- Callahan III, John PPAgranted 2021-09-02
License history
0 eventsNo recorded events.