What does ABDN stand for?
ABDN stands for "Attendant Blocking of Directory Number"
How to abbreviate "Attendant Blocking of Directory Number"?
"Attendant Blocking of Directory Number" can be abbreviated as ABDN
What is the meaning of ABDN abbreviation?
The meaning of ABDN abbreviation is "Attendant Blocking of Directory Number"
What does ABDN mean?
ABDN as abbreviation means "Attendant Blocking of Directory Number"
