About Aphthous Ulcer: These small sensitive painful craters in the mouth are common canker sores. There are many possible causes of apthous ulcers and frequently the cause is unknown. See also: sub-topics
The IRS phone number for individuals is (800) 829-1040. Businesses can call (800) 829-4933. Hearing impaired individuals can contact the IRS using TDD at (800) 829-4059. Operating hours are between 7 a.m. and 10 p.m. in your local time zone. After hours, a recording will direct you. Have all your paperwork in front of you when you call.
ATT Hours of Operation. ATT Sunday hours are 12 - 7. * Note that ATT phone store may vary in closing, opening and sunday hours of operation by state and city. The following ATT hours are based on the average store hours nationwide and pertain to most stores. **CL= Closed.