| Callsign | W9MBC |
| Radio Service | HV - Vanity |
| License Status | E - Expired |
| Grant Date | 2004-05-18 |
| Effective Date | 2004-05-18 |
| Expire Date | 2014-05-18 |
| Cancel Date | 2016-05-19 |
| Last Action Date | 2016-05-19 |
| End Date | 2014-05-18 |
| Available Date | 2016-06-19 |
| Applicant Type | I - Individual |
| Entity Name | CZARNOWSKI, MARK B |
| Street Address / Locality | 1709 B Willow Court Urbana, IL 61801 |
| County | Champaign County |
| Zip Location | 40°06'32.3"N 88°12'39.7"W |
| Maidenhead | EN50vc |
| FRN | 0005835244 |
| Licensee ID/SGIN | L00429968 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 9 / 9 / IL |
| Prev Callsign / Prev Class | KB9DUY P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 9 / 68 |