Retrieving license, trustee, & application history for
AB4TW
AB4TW is restricted to Amateur Extra class operators.
AB4TW is e - expired 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 |
|---|---|---|---|---|---|---|---|---|
| MITCHELL, KARL L | I - Individual | E - Amateur Extra | 4 / FL | E - Expired | 1990-02-27 | 1990-02-27 | 2002-03-07 | 2000-02-27 |
Retrieving applications for
AB4TW
AB4TW is restricted to Amateur Extra class operators.
AB4TW is e - expired 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- Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.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 |
|---|---|---|---|---|---|---|---|---|
| Fri 2025-11-21 | KQ4YDK | 4 / FL | Roberts III, Charles K | 0011787505 I - Online |
MD - Modification | 2025-11-24 | 2025-12-09 | G - Granted |
| Mon 2022-04-11 | KO4GOX | 4 / GA | Kokhanyuk, Alexander N | 0009995965 I - Online |
MD - Modification | (none) | 2022-04-29 | G - Granted |
| Thu 2018-07-19 | KN4BNS | 4 / FL | Cheng, William | 0008287214 I - Online |
AM - Amendment | (none) | 2018-08-07 | G - Granted |
| Tue 2007-02-20 | KG4QML | 4 / FL | Thomas, Terry W | 0002919093 I - Online |
MD - Modification | 2007-02-22 | 2007-03-10 | G - Granted |