Michael, I think the nines got changed to 10 shortly after World War II and this is based on a ham in Manhattan, who was a nine when he went to work at Washington DC during World War II and by the time he got home, his call sign was changed to 10 and everybody thought he was making up his call. This is here say but I think it’s fairly accurate. You might Google it and find out. Hope you have a good day.


On Thu, Jan 29, 2026 at 7:20 AM Michael Philbrick <philbrick52@gmail.com> wrote:
Good morning,
Each day is a learning experience. I had a popup that got me searching. I came across another HAM in Seneca. He graduated in 1930, immediately went to radio school in the state of Louisiana, and got a radio engineer job in NY. What I found was a qsl card, but his callsign was area 9 and not area 0. I was puzzled. WC0AA had waiting in my inbox this morning a map of the US callsign areas for 1937. Kansas and 11 other states were area 9. This got me to wondering what the first callsign of Dennis Mason was. Do you have a response, Dennis?  P.S. Not saying Dennis is of the antique age of Davidson Vorhes, W9GFO, but the longest licensed living person that I know.

--
Michael Philbrick
Odd Job Technician
Retired Guys LLC (fictional)
Cousin to my genealogy relatives
NØUDF to hams
Retired science/CTE educator
Seneca, KS
785-294-2719

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