After you file

Per the IRS :  https://www.irs.gov/individuals/how-do-i-apply-for-an-itin#:~:text=Who%20can%20I%20call%20for,7%20an....

How long does it take?

You will receive a letter from the IRS assigning your tax identification number usually within seven weeks if you qualify for an ITIN and your application is complete.

Who can I call for help?

You can call the IRS toll-free at 800-829-1040 if you are in the United States or 267-941-1000 (not a toll-free number) if you are outside the United States. This service allows you to check the status of your application seven weeks after submitting Form W-7 and your tax return.