There is certainly something suspicious. If one isn't hiding anything then there is no reason to enter phone numbers without an ID. Without accusing simply ask him why he is doing this and if you don't like the answer he gives then let him know it. Let him know that you won't put up with games in your relationship. Answer
I agree with the above however, maybe he just wants privacy - if you always have to know everything about him, what he does, where he is, who he talks to they maybe he just wants something that may not be controlled by you. It really is his right to have privacy in his own phone - maybe things are not always the means of cheating.
ANSWER
Maybe, or maybe he just likes prank calling.
:D
Statistically this cannot be answered as people are not truthful with cheating - so it is unknown.
if you are married to your partner you become the step mother or father. Talk to your partner about this
If he isn't home until two-thirty in the morning, he's cheating. If he seems distant, he's probably thinking about her. If he's reluctant with you, he's thinking and wanting her. He leaves unexplained numbers on his phone. Look for repeated calls to an unknown number. They are often the other girl.
you carnt without cheating our hacking/codes
Rumor (unknown if true) was that he was shot by his wife for cheating on her. It was not fatal.
Unknown and feral cats alone are in numbers that are unknown.
The word "variable" represents an unknown number.
Junk entered English around the 15th Century but its origin is unknown.
UNKNOWN
The answer to this is unknown it is all dependat on WWE Creative writers.
Exact numbers are unknown.
Exact numbers are unknown.