| Callsign | N3GUP |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2009-08-05 |
| Effective Date | 2009-08-05 |
| Expire Date | 2019-11-03 |
| Cancel Date | 2021-11-04 |
| Last Action Date | 2021-11-04 |
| End Date | 2019-11-03 |
| Available Date | 2021-12-05 |
| Applicant Type | I - Individual |
| Entity Name | MAULLER, DONALD R |
| Street Address / Locality | 8153 CREST ROAD LAUREL, MD 207231035 |
| County | Howard County |
| Zip Location | 39°08'15.6"N 76°52'04.6"W |
| Maidenhead | FM19nd |
| FRN | 0003307626 |
| Licensee ID/SGIN | L00146711 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 3 / 3 / MD |
| Prev Callsign / Prev Class | KA3TYX P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0003922372 |
| Phonetic weight / Morse weight | 10 / 60 |