The date of the attack: 9/11 - 9 + 1 + 1 = 11

September 11th is the 254th day of the year: 2 + 5 + 4= 11

After September 11th there are 111 days left to the end of the year.

119 is the area code to Iraq/Iran. 1 + 1 + 9 = 11
Twin Towers - standing side by side, looks like the number 11

The first plane to hit the towers was Flight 11
There's More.......

State of New York - The 11 State added to the Union

New York City - 11 Letters

Afghanistan - 11 Letters

The Pentagon - 11 Letters

Ramzi Yousef - 11 Letters (convicted of orchestrating the attack on the WTC in 1993)

Flight 11 - 92 on board - 9 + 2 = 11

Flight 77 - 65 on board - 6 + 5 = 11