Anonymous ID: d889c6 Nov. 19, 2022, 3:14 p.m. No.17793072   🗄️.is 🔗kun

Call sign ADSUM13. USN Boeing E-6B Mercury 163918.

 

adsum

interjection

ad·​sum ˈad-ˌsəm, ˈäd-ˌsum

—used to indicate one's presence usually in answer to a roll call

https://www.merriam-webster.com/dictionary/adsum