| Callsign | WX4MRX |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2018-08-13 |
| Effective Date | 2018-08-14 |
| Expire Date | 2028-10-20 |
| Cancel Date | |
| Last Action Date | 2024-03-18 |
| End Date | 2028-10-20 |
| Available Date | 2030-10-21 |
| Applicant Type | B - Amateur Club |
| Entity Name | MRX SKYWARN ASSOCIATION |
| Street Address / Locality | 5974 COMMERCE BLVD MORRISTOWN, TN 37814 |
| County | Hamblen County |
| Zip Location | 36°14'00.0"N 83°20'16.5"W |
| Maidenhead | EM86hf |
| FRN | 0017991837 |
| Licensee ID/SGIN | L01420042 / 000 |
| Licensee Class | |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / TN |
| Prev Callsign / Prev Class | KF4EKQ |
| Next Callsign | |
| Trustee Callsign / Trustee Name | KF7TNC Cavallucci, Anthony R |
| Vanity Type | F - By List (Club) |
| ULS File Number | 0008317193 |
| Phonetic weight / Morse weight | 12 / 74 |