| Callsign | K4AI |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2016-08-24 |
| Effective Date | 2019-06-24 |
| Expire Date | 2026-11-04 |
| Cancel Date | |
| Last Action Date | 2024-03-18 |
| End Date | 2026-11-04 |
| Available Date | 2028-11-05 |
| Applicant Type | B - Amateur Club |
| Entity Name | APCO INTERNATIONAL AMATEUR RADIO CLUB |
| Street Address / Locality | PO Box 39100 Downey, CA 902390100 |
| County | Los Angeles |
| Zip Location | 33°56'24.0"N 118°07'57.4"W |
| Maidenhead | DM03ww |
| FRN | 0005101449 |
| Licensee ID/SGIN | L00337472 / 000 |
| Licensee Class | |
| Callsign Group | A - 1x2 |
| ULS/Geo Region | 4 / 6 / CA |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | KG6FWF SPIRESCU, ADRIANA M |
| Vanity Type | |
| ULS File Number | 0008703833 |
| Phonetic weight / Morse weight | 9 / 40 |