NB4I
District 4 · 2x1
Active
- End Date
- 2036-04-25
- Available Date
- —
- Phonetic Weight
- 9
- Morse Weight
- 37
Current License
CALLAHAN, MICHAEL D
Entity Type: L
Operator Class: E
Granted: 2026-04-25
Expires: 2036-04-25
Group A — Amateur Extra only
License History
- License Renewed2026-04-25
- License Renewed2015-09-21
- License Renewed2005-09-08
- LITIN2005-09-08
Applications
- Purpose: MD · Status: G2019-10-04Requested: KY4E, KY4J, NA4V, NI4U, NB4I, NF4QEntered: 2019-10-04
License history reflects what the FCC's ULS currently carries — the weekly reconciliation overwrites the raw tables in place, so this is a current-state snapshot, not history this site accumulated itself.