Confidence: Medium · Source: FCC ULS · As of 2026-09-09

KB7RM

Active

BUTTERFIELD, MIKE J

Location: Sierra Vista, AZ
Class: Advanced
Granted: 2025-04-16
Expires: 2035-03-27
Previous call: KB0TO
FRN: 0007933765

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Vanity availability

Held

Currently held

KB7RM is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KB0TOcancelled· A
BUTTERFIELD, MIKE JAZgranted 2006-09-12cancelled 2015-03-27

License history

0 events

No recorded events.

More vanity slots coming available

From Arizona

All →

K7JVC 2026-09-09
N0PSA 2026-09-09
AD7UU 2026-09-10
W7CWD 2026-09-10
KF7YNV 2026-09-13

Starting with KB7

All →

KB7MIT ID · 2026-09-09
KB7PWB CO · 2026-09-10
KB7QAI NM · 2026-09-14
KB7QAL ID · 2026-09-14
KB7QAP WY · 2026-09-14

Full history → Vanity availability → Callsign genealogy →