What does MDCO stand for?
MDCO stands for "Main Dial Central Office"
How to abbreviate "Main Dial Central Office"?
"Main Dial Central Office" can be abbreviated as MDCO
What is the meaning of MDCO abbreviation?
The meaning of MDCO abbreviation is "Main Dial Central Office"
What does MDCO mean?
MDCO as abbreviation means "Main Dial Central Office"
