Retrieving license, trustee, & application history for
K3OSO
K3OSO is restricted to Technician class operators or higher.
K3OSO is c - canceled and is available.
Navigation:
- Scroll down to the applications that requested this callsign.
- An Entity Name opens everything filed under that licensee’s FCC Registration Number.
- A Grant Date opens all processing on that day; an Effective Date opens the license record.
Notes:
- Column headings link to an explanation of the column.
- A bold Applicant Type marks a vanity callsign assignment.
- Active licenses are listed first, then the rest by Effective Date, newest first.
| Entity Name | Applicant Type |
Licensee Class | Region / State | License Status |
Grant Date | Effective Date |
Cancel Date | Expire Date |
|---|---|---|---|---|---|---|---|---|
| Grachev, Aleksey | I - Individual | E - Amateur Extra | 0 / CO | C - Canceled | 2009-05-05 | 2010-11-20 | 2011-02-01 | 2019-05-05 |
Retrieving applications for
K3OSO
K3OSO is restricted to Technician class operators or higher.
K3OSO is c - canceled and is available.
Navigation:
- An Applicant callsign opens that callsign’s history; an Entity Name opens the applicant’s history.
- A ULS File Number opens the application detail; a Receipt Date opens that day’s applications.
Notes:
- Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.
- “Granted” means the application was granted, not necessarily with this callsign.
- Receipt dates more than a month old have a gray background.
| Receipt Date |
Applicant Callsign | Region / State |
Entity Name | ULS File Number | Application Purpose |
Payment Date | Last Action Date |
Application Status |
|---|---|---|---|---|---|---|---|---|
| Thu 2026-08-27 | KR4OHU | 4 / FL | Aubut, Michael P | 0012165955 I - Online |
MD - Modification | 2026-08-27 | 2026-09-15 | G - Granted |
| Mon 2025-09-29 | KD3BYI | 3 / MD | Lee, Annette Y | 0011769756 I - Online |
MD - Modification | 2025-11-18 | 2025-12-09 | G - Granted |
| Fri 2009-04-17 | KD0HHE | 0 / CO | Grachev, Aleksey G | 0003810492 I - Online |
MD - Modification | 2009-04-18 | 2009-05-05 | G - Granted |