Anything that is 11 characters is not an EIN. Ask your employer what their correct 9-digit federal EIN is. (The hyphen doesn't count. The format of a 9-digit EIN is nn-nnnnnnn.)
What do you mean by "what they have on file"? You should be getting the EIN from box b on your W-2. If it's more than 9 digits, the employer did not fill out the W-2 correctly.
