Just discovered boyfriend has 2 cell phones!!

Just discovered that boyfriend has two cell phones. What I don't understand is why... I do not have access to his original cell phone - it's locked and I have no idea what his password is and he almost always keeps it in his pocket when we're together. I do not have access to the bill or anything so no way of me getting into his phone records - so is he cheating or is he a drug dealer or something?! I can't see the reason of having two phones if cheating because I can't get into the original one AT ALL! Just want opinions on why he has two phones please NO questions on how I discovered it because sorry I have trust issues and do snoop through his pockets/gym bag from time to time.
Updates
+1 y
I don't want him going through my phone or email and he does not know my passwords and that's just because I like privacy. I'm not doing anything behind his back and I'm 100% faithful to him and he knows it. I just don't get why he'd have a second phone unless he was up to something but what is that something...
Updates
+1 y
Update: second phone is for contacts etc he doesn't trust anyone and would not let man at verizon transfer anything from his old phone to his new phone (pics, contacts, etc).
Just discovered boyfriend has 2 cell phones!!
Post Opinion