What does 021 stand for?
021 stands for "NAK ( Negative Acknowledgement)"
How to abbreviate "NAK ( Negative Acknowledgement)"?
"NAK ( Negative Acknowledgement)" can be abbreviated as 021
What is the meaning of 021 abbreviation?
The meaning of 021 abbreviation is "NAK ( Negative Acknowledgement)"
What does 021 mean?
021 as abbreviation means "NAK ( Negative Acknowledgement)"
