| Callsign | K4WSM |
| Radio Service | HV - Vanity |
| License Status | C - Canceled |
| Grant Date | 2001-10-27 |
| Effective Date | 2001-10-27 |
| Expire Date | 2011-10-27 |
| Cancel Date | 2002-09-10 |
| Last Action Date | 2026-04-07 |
| End Date | 2002-09-10 |
| Available Date | 2026-05-08 |
| Applicant Type | I - Individual |
| Entity Name | HAIRSTON, WILLIAM W |
| Street Address / Locality | 2855 IROQUOIS DR THOMPSONS STATION, TN 37179 |
| County | Williamson County |
| Zip Location | 35°48'41.1"N 86°55'28.1"W |
| Maidenhead | EM65mt |
| FRN | 0001816727 |
| Licensee ID/SGIN | L00234185 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / TN |
| Prev Callsign / Prev Class | N4UHE P - Technician Plus |
| Next Callsign | K4WRF |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 56 |