What does PTO stand for?
PTO stands for "Public Telecommunication Operator"
How to abbreviate "Public Telecommunication Operator"?
"Public Telecommunication Operator" can be abbreviated as PTO
What is the meaning of PTO abbreviation?
The meaning of PTO abbreviation is "Public Telecommunication Operator"
What does PTO mean?
PTO as abbreviation means "Public Telecommunication Operator"
