I called back this number, It is pharmacy and ask me it I want Viagra, etc...

I called back this number. It is a pharmacy and ask me if I want Viagra, or other prescription medicine...  They answer the phone.

This is an Indian selling Viagra

I did not answer. iPhone showed no info about the number like the state, etc. as it usually does; nor did it mark it as "Unknown".

I get calls from about a dozen random numbers over the course of the month and they're all the same. Looks like this is a new one they are using. They're always trying to sell me narcotics and telling me I won something. Sad to say if you answer an unexpected call and AND THEY'RE INDIAN WITH BROKEN ENGLISH, REST ASSURED, it's a SCAM!

Most of these people phish old numbers and use them as their caller ID so when you answer here in the US, it's a US number. Problem is they say their Canadian Pharmacy, but they're really an East Indian trying to scam you and steal you credit card numbers by getting you to buy something over the phone. DON'T WASTE YOUR TIME AND BE A VICTIM OF ID THEFT.