| Callsign | KB6MTT |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-02-19 |
| Effective Date | 2026-09-08 |
| Expire Date | 2036-05-16 |
| Cancel Date | |
| Last Action Date | 2026-09-08 |
| End Date | 2036-05-16 |
| Available Date | 2038-05-17 |
| Applicant Type | I - Individual |
| Entity Name | MADDEN JR, HOWARD L |
| Street Address / Locality | 15231 W Cascade Court Surprise, AZ 85374 |
| County | Maricopa County |
| Zip Location | 33°38'25.5"N 112°22'28.6"W |
| Maidenhead | DM33tp |
| FRN | 0015048275 |
| Licensee ID/SGIN | L01151350 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 6 / 7 / AZ |
| Prev Callsign / Prev Class | G - General |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0012178101 |
| Phonetic weight / Morse weight | 10 / 60 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2006-05-16 | LIREN - License Renewed |
| 2006-05-16 | LTSFRN |
| 2015-01-16 | LIMOD - License Modified |
| 2016-02-25 | LIREN - License Renewed |
| 2016-03-15 | RCDUP |
| 2016-03-16 | AUTHPR - Authorization Printed |
| 2019-08-27 | LIAUA - Administrative Update Applied |
| 2024-06-04 | LIMOD - License Modified |
| 2026-02-19 | LIREN - License Renewed |
| 2026-07-21 | LIAUA - Administrative Update Applied |
| 2026-09-08 | LIAUA - Administrative Update Applied |