| Callsign | W6MMT |
| Radio Service | HV - Vanity |
| License Status | E - Expired |
| Grant Date | 2005-07-23 |
| Effective Date | 2005-07-23 |
| Expire Date | 2015-07-23 |
| Cancel Date | 2017-07-25 |
| Last Action Date | 2017-07-25 |
| End Date | 2015-07-23 |
| Available Date | 2017-08-25 |
| Applicant Type | B - Amateur Club |
| Entity Name | Mammoth Amateur Radio Group |
| Street Address / Locality | PO Box 8132 Mammoth Lakes, CA 935468132 |
| County | Mono County |
| Zip Location | 37°32'56.9"N 118°50'23.3"W |
| Maidenhead | DM07nn |
| FRN | 0013694039 |
| Licensee ID/SGIN | L01035407 / 000 |
| Licensee Class | |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 6 / 6 / CA |
| Prev Callsign / Prev Class | KG6ZTT |
| Next Callsign | |
| Trustee Callsign / Trustee Name | W6DBM McRae, DANA B |
| Vanity Type | F - By List (Club) |
| ULS File Number | |
| Phonetic weight / Morse weight | 7 / 52 |