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