Inside NORAD's command center as Santa trackers follow Santa's progress

Brennan Linsley / AP

Volunteers take phone calls from children asking where Santa is and when he will deliver presents to their house during the annual NORAD Tracks Santa Operation, at the North American Aerospace Defense Command, or NORAD, at Peterson Air Force Base, in Colorado Springs, Colo., on Dec. 24.

Brennan Linsley / AP

Volunteer Katherine Beaupre takes phone calls at NORAD.

Over a thousand volunteers at NORAD handle more than 100,000 thousand phone calls from children around the world every Christmas Eve as NORAD charts Santa's progress around the globe. The program began in 1955 when a Colorado Springs-based Sears Roebuck & Co. advertisement misprinted the telephone number for children to call Santa. Read more

Track Santa through NORAD's website.

Slideshow: Holiday season lights up

Previously on PhotoBlog:

• Santa Clauses surf, laugh and row around the world
• 'Sandy Claus' delivers toys to storm-stricken kids
• That's a powerful tree!