No the 011 will still work it's just so you can dial out to the country. an then have them dial the 077 and whatever the rest of your number is. I found it out off of my calling card but you can also look it up in the front of the phonebook if your in the US. We print them in ours. An if anyone wants my cell number just PM me I am a very loney lil girl who like any 18 yr old likes to talk on the phone lol so yea.