Callsigns starting with 4U
| Callsign | Last heard | Comment |
|---|---|---|
| 4U1A | 8m2s ago | 4U1A UN Amateur Radio Contest DX Club 'ARCDXC' https://www.cqdx.ru/4u1a |
| 4U1GSC-1 | 38m33s ago | |
| 4U1GSC-10 | 12m3s ago | LoRa APRS |
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| Callsign | Last heard | Comment |
|---|---|---|
| 4U1A | 8m2s ago | 4U1A UN Amateur Radio Contest DX Club 'ARCDXC' https://www.cqdx.ru/4u1a |
| 4U1GSC-1 | 38m33s ago | |
| 4U1GSC-10 | 12m3s ago | LoRa APRS |
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