What does STD stand for?

STD stands for "Subscriber Trunk Dialing"

How to abbreviate "Subscriber Trunk Dialing"?

"Subscriber Trunk Dialing" can be abbreviated as STD

What is the meaning of STD abbreviation?

The meaning of STD abbreviation is "Subscriber Trunk Dialing"

What does STD mean?

STD as abbreviation means "Subscriber Trunk Dialing"