| Callsign | W4ZPO |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2018-10-19 |
| Effective Date | 2018-10-19 |
| Expire Date | 2028-10-19 |
| Cancel Date | |
| Last Action Date | 2024-03-18 |
| End Date | 2028-10-19 |
| Available Date | 2030-10-20 |
| Applicant Type | B - Amateur Club |
| Entity Name | Quarter Century Wireless Assoc Chapter 121 |
| Street Address / Locality | PO Box 992 Lake Placid, FL 33862 |
| County | Highlands |
| Zip Location | 27°17'35.2"N 81°21'46.4"W |
| Maidenhead | EL97hh |
| FRN | 0027874437 |
| Licensee ID/SGIN | L02214910 / 000 |
| Licensee Class | |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | KN4PDR |
| Next Callsign | |
| Trustee Callsign / Trustee Name | W4CBS ROBERTS, DONALD L |
| Vanity Type | F - By List (Club) |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 68 |