What does FDN stand for?
FDN stands for "Free Dialed Number"
How to abbreviate "Free Dialed Number"?
"Free Dialed Number" can be abbreviated as FDN
What is the meaning of FDN abbreviation?
The meaning of FDN abbreviation is "Free Dialed Number"
What does FDN mean?
FDN as abbreviation means "Free Dialed Number"
