What does UMO stand for?
UMO stands for "Undeliverable Mail Office"
How to abbreviate "Undeliverable Mail Office"?
"Undeliverable Mail Office" can be abbreviated as UMO
What is the meaning of UMO abbreviation?
The meaning of UMO abbreviation is "Undeliverable Mail Office"
What does UMO mean?
UMO as abbreviation means "Undeliverable Mail Office"
