24 Aug General ITIN References & Contact Information Including IRS Pub 1915 & IRS Rev Proc 2006-10
Aside from this tax blog the following are the most useful resources for researching Individual Taxpayer Identification Number (ITIN) application processing.
Update to the Instructions for Form W-7 and ITIN Processing Time
IRS Form W-7
If you need assistance in these regards you can always contact the IRS ITIN Programming Office at firstname.lastname@example.org or by calling 512-433-5966 or 404-338-8963 or by fax at 404-388-9112.
They are very prompt at returning voicemail and responding to faxes. If that does not work you can always reach out to me.