iphone 7 plus IMEI

hlo guys

I'm PARMOD

Actually before a couple of day ago i bought a used Iphn 7 plus (128gb)

I check this IMEI nothis from south korea & I'm here in phillipines .

I bought this from a korean . so the interesting thing is this there is NO IMEI NO ON THE BACK SIDE OF IPHONE .

Actually can anyone tell me is there any country where apple launch iphn without put IMEI on the back side.

I already check this phn on APPLE ONLINE WARRANTY....

this one shows in warranty with service.

bt I'm confused that is this original or complete housing..

PLEASE GIVE ME ANS...