What you need to do is contact your employer and request their employer ID...if you don't have what you need by 02/14/2017 you can contact the IRS at 1-800-829-1040. During the call, the IRS will ask you for your personal information --
such as your name, address and Social Security number -- and for your
employer's name, address and phone number, along with dates of employment and the amount of wages you earned. You can also check out this link for more information.
https://www.irs.gov/uac/here-is-what-to-do-if-you-are-missing-a-w-2