What does NTNP stand for?
NTNP stands for "National Telephone Numbering Plan"
How to abbreviate "National Telephone Numbering Plan"?
"National Telephone Numbering Plan" can be abbreviated as NTNP
What is the meaning of NTNP abbreviation?
The meaning of NTNP abbreviation is "National Telephone Numbering Plan"
What does NTNP mean?
NTNP as abbreviation means "National Telephone Numbering Plan"
