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