I remember working with an airline around '01-'02. The CTO was very excited they had migrated all of their network infrastrucutre to new private lines and gotte

I remember working with an airline around '01-'02. The CTO was very excited they had migrated all of their network infrastrucutre to new private lines and gotten off of that "terrible 10-dot network". I asked which private network they switched to and he said "We switched to 11-dot, because no one else uses it and it'll be unique for the future growth of our private network." Needless to say, he was not pleased to learn it was not private, or unique and was assigned to the DoD.