Here:
1. PooPoo2
2. RamRanch18
3. tt1
4. EggyBreath2
5. tNozzle7
6. WeedSniffer11
7. Peehole46
8. CheekBuster2
9. TainTicklerJu1
10. JuJuOnTheBeat2
11. FeetPix
12. BeefSupreme30
13. PeePeeActual
14. WeeWee1
15. OOF
16. BmB*m69
17 PinkyPoo
18. *sjug97
19 PeterPuncher
20. Monke4

call sign:
a message, code, or tune that is broadcast by radio to identify the broadcaster or transmitter.
So my call sign would be Kerbango.
Or if you HAVE to have letters and numbers: KCC01.
(Though, this has never been used, I just made it up.)

@GermanWarMachine @CaesiciusPlanes @Kerbango um... great answers but can I get your real callsign?

I am who I am.