After you file

Call if not find status after 3 weeks after filing:  8 6 6 -4 6 4 -2 0 5 0+1

IF NO STATUS AFTER 3 WEEKS CALL
IRS:  8 0 0 -8 2 9- 1 0 4 0 +1+1+2 for amended  7 AM - 7 PM local time Mon-Fri

 

The number on my latest response from where's my amended tax return:

Please call 8 0 0 - 8 2 9 - 0 5 8 2 , ext 6 2 3