Retrieving license, trustee, & application history for
K4COO
K4COO is restricted to Technician class operators or higher.
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 |
|---|---|---|---|---|---|---|---|---|
| VIRO, POLINA | I - Individual | G - General | 0 / SD | A - Active | 2024-01-20 | 2024-01-20 | 2034-01-20 | |
| SPENCE JR, JACK C | I - Individual | G - General | 4 / FL | E - Expired | 2009-03-07 | 2009-03-07 | 2021-05-06 | 2019-05-05 |
Retrieving applications for
K4COO
K4COO is restricted to Technician class operators or higher.
Navigation:
- Scroll down to the pending application predictions.
- 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- Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.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 |
|---|---|---|---|---|---|---|---|---|
| Mon 2026-09-14 | KR4OWY | 4 / TN | Oliver, Xacharias L | 0012182737 I - Online |
MD - Modification | (none) | 2026-09-15 | 2 - Pending Level 2 |
| Tue 2024-01-02 | KF0OHJ | 0 / SD | VIRO, POLINA | 0010835517 I - Online |
MD - Modification | 2024-01-02 | 2024-01-20 | G - Granted |
| Mon 2023-05-22 | KA5LOL | 4 / FL | TADLOCK, GUY M | 0010553566 I - Online |
MD - Modification | 2023-05-22 | 2023-06-09 | G - Granted |
| Tue 2022-02-08 | KO4NNZ | 4 / SC | Hoade, Russell W | 0009903704 I - Online |
MD - Modification | (none) | 2022-02-26 | G - Granted |
| Wed 2021-05-05 | KF5DJA | 5 / LA | GRANGER, DAVID B | 0009540041 I - Online |
MD - Modification | (none) | 2021-05-25 | D - Dismissed |
Retrieving pending application predictions for
K4COO
Navigation:
- A Prediction lists every pending application with that prediction; a Vanity Type lists those of that type.
- A ULS File Number opens the application detail.
Notes:
- The ULS File Number color is the forecast for the whole application; the Prediction color is for this callsign.
- Process dates are yellow when today and pink when overdue.
| Receipt Date | Process Date | Applicant Callsign | Operator Class | Region / State |
ULS File Number | Vanity Type |
Seq# | Vanity Callsign | Prediction |
|---|---|---|---|---|---|---|---|---|---|
| Mon 2026-09-14 | Fri 2026-10-02 | KR4OWY Oliver, Xacharias L |
T - Technician | 4 / TN | 0012182737 | E - By List | 2/13 | K4COO | Active Callsign |