Changed simcard, now contacts not recognized

[irisclever]

Hello,

I just moved to the States and got an American simcard. Since I reset my Iphone 4, many of my old contacts are not recognized anymore. I'm originally from the Netherlands, and my Dutch friends' phone numbers are not correctly recognized. For one, the land code is not automatically added (and nothing changes when I do this myself). Secondly, my phone does not recognize that many of my friends have facetime. And lastly, it does not recognize that many of my friends have Whats App. I have no clue how to fix this. My iphone and whatsapp are set to my new American number. I thought about deleting Whatsapp and making a new account, but then I lose my chat history and might not be able to whatsapp with my Dutch friends again.

Can anyone help me?

Iris