| Callsign | KJ4CWZ |
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 1999-01-04 |
| Effective Date | 2008-03-22 |
| Expire Date | 2009-01-04 |
| Cancel Date | 2008-04-15 |
| Last Action Date | 2008-04-15 |
| End Date | 2008-04-15 |
| Available Date | 2010-04-16 |
| Applicant Type | I - Individual |
| Entity Name | MAYER III, JOSEPH W |
| Street Address / Locality | 2302 HOWERTON CT CHARLOTTE, NC 28270 |
| County | Mecklenburg County |
| Zip Location | 35°06'43.3"N 80°45'52.6"W |
| Maidenhead | EM95oc |
| FRN | 0002912103 |
| Licensee ID/SGIN | L00219570 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / NC |
| Prev Callsign / Prev Class | KB5HUR P - Technician Plus |
| Next Callsign | KJ4JWM |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 13 / 82 |