How much is iPhone insurance?

I Received my iPhone 4S last April as a birthday present. The phone did not come with phone insurance and now I'm thinking I better get it! How much is it after almost a year? Is it even purchasable? I have Verizon as my carrier but i don't know if I have to go trough VERIZON or apple to get the insurance.

I had insurance and it sucks! $10 a month doesn't seem bad but the chances of something happening to your iPhone are very slim and insurance doesn't protect you breaking it such as shattering the glass or dropping something on it. Only if something internally goes wrong. Huge rip off