How should I dial from Canada a cell phone number from Mexico that begins with 044 55 xxxxx?

Question

I need to call from Canada to a cell phone number in Mexico which I was told begins with 044 55 xxxxxx.

Answer 1

Until next November 4th you must dial: 011 52 55 xxxxxxx

After Novembre 4th you must to dial: 011 52 55 1 xxxxxxx

Answer 2

Call the telephone operator and ask for dialing assistance, or, ask her to dial the number for you.