Yep. R.I.P., US Highway 666.
I am the world's biggest road geek and one of my dreams was to drive the remaining stretch of U.S. 666 before it got decommissioned and renumbered. Alas, the Rand McNally® Road Atlas™ 2005 was the bearer of shattered dreams.
Apparently, not as many people in New Mexico or Utah embrace Satan as I thought.
Well, people, you can no longer blame this highway's notoriously high death toll on Satan. You just lost yourself a free scapegoat, folks. Renumbering the highway to 491 means from now on, you're gonna have to take responsibility for your own shitty driving.
It does makes me sad though. Shattered dreams. Shattered dreams, I tell ya.
U.S. 666 was established in 1926... it ran from the border of Mexico near Douglas, AZ up into New Mexico, through the corner of Colorado into southeast Utah where it terminated at US 191. It was numbered 666 for being the sixth branch of the now defunct US 66. This logic dictates that it probably wasn't numbered in honor of Satan...
...but this sign does look kinda creepy, doesn't it?
Arizona renumbered its portion to 191 back in 1992. The remaining three states caved into the pressure in 2003.