What does ATTNS stand for?
ATTNS stands for "American Telephone and Telegraph Network Systems"
How to abbreviate "American Telephone and Telegraph Network Systems"?
"American Telephone and Telegraph Network Systems" can be abbreviated as ATTNS
What is the meaning of ATTNS abbreviation?
The meaning of ATTNS abbreviation is "American Telephone and Telegraph Network Systems"
What does ATTNS mean?
ATTNS as abbreviation means "American Telephone and Telegraph Network Systems"
