According to the instructions for Form W-7, processing times: Allow 7 weeks for the IRS to notify you of
your ITIN application status (9 to 11 weeks if you submit the
application during peak processing periods (January 15 through
April 30) or if you’re filing from overseas). If you haven’t received
your ITIN or correspondence at the end of that time, you can call
the IRS to find out the status of your application
Telephone help. If, after reading these instructions and our free
publications, you’re not sure how to complete your application or
have additional questions, call 800-829-1040 if you’re in the
United States. If you’re outside the United States, call
267-941-1000 (not a toll-free number) for assistance.
https://www.irs.gov/pub/irs-pdf/iw7.pdf
