What does SDN stand for?
SDN stands for "Station/Subscriber Directory Number"
How to abbreviate "Station/Subscriber Directory Number"?
"Station/Subscriber Directory Number" can be abbreviated as SDN
What is the meaning of SDN abbreviation?
The meaning of SDN abbreviation is "Station/Subscriber Directory Number"
What does SDN mean?
SDN as abbreviation means "Station/Subscriber Directory Number"
