| Callsign | KB3RSK |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2008-10-06 |
| Effective Date | 2008-10-06 |
| Expire Date | 2018-10-06 |
| Cancel Date | 2020-10-07 |
| Last Action Date | 2020-10-07 |
| End Date | 2018-10-06 |
| Available Date | 2020-11-07 |
| Applicant Type | I - Individual |
| Entity Name | Antoszewski Jr, William M |
| Street Address / Locality | 116 Nicodemus Rd Reisterstown, MD 21136 |
| County | Baltimore County |
| Zip Location | 39°29'01.6"N 76°47'39.1"W |
| Maidenhead | FM19ol |
| FRN | 0018167585 |
| Licensee ID/SGIN | L01435847 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 3 / 3 / MD |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0003601103 |
| Phonetic weight / Morse weight | 13 / 70 |