Santa tracker has became a tradition for NORAD, which answers 80,000 calls on the whereabouts of Santa. There are several apps available for Apple and Android phones.
The volunteer Santa trackers at the North American Aerospace Defense Command are bracing for tens of thousands of calls and emails when their operations center goes live on Christmas Eve.
The military base has been telling anxious children about Santa's whereabouts every year since 1955. That was the year a Colorado Springs newspaper ad invited kids to call Santa on a hotline, but the number had a mistake, and dozens of kids wound up talking to the Continental Aerospace Defense Command, NORAD's predecessor.
The officers on duty played along and began sharing reports on Santa's progress. It's now a deep-rooted tradition at NORAD, a joint U.S.-Canada command that monitors the North American skies and seas.
Last year, NORAD Tracks Santa volunteers answered 80,000 phone calls on Christmas Eve, said Joyce Creech, project leader.
"It's just so precious to hear the little sigh or breathing on the other end, and you realize how nervous they are," Creech said.
"But we've had really heart-wrenching stories as well," she said. "'Can you ask Santa to heal my brother of cancer?' Or, 'Can I get a new pair of shoes? I don't have any.'"