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