What does IST stand for?
IST stands for "Interswitch Trunk"
How to abbreviate "Interswitch Trunk"?
"Interswitch Trunk" can be abbreviated as IST
What is the meaning of IST abbreviation?
The meaning of IST abbreviation is "Interswitch Trunk"
What does IST mean?
IST as abbreviation means "Interswitch Trunk"
