Apparently, there are no phone books in purgatory because “Osama Bin Laden”­ called in a bomb threat to Sitel Monday, thinking he was dialing Walmart.

Sheriff Dennis Meeks said Tuesday the Sanford inbound call center was evacuated after a man, identifying himself as the late mastermind of the Sept. 11, 2001, terrorist attacks, called Walmart’s 1-800 number.

“He said the building was going to blow up in 10 minutes, but what he didn’t realize is that those 1-800 numbers are routed through call centers like Sitel,” Meeks said. “There wasn’t a lot of worry with the call since the man called himself Osama Bin Laden and could be heard laughing as he hung up the phone. But still, Sitel did a great job following protocol. The building was evacuated and searched. The grounds were searched, and all was found to be fine.

“Sitel or its employees were never in any danger,” he said.

Meeks said Sitel staff notified Walmart’s corporate office of the call.

“We were able to get a number, so we’re going to see if we can trace it,” Meeks said. “Hopefullly, it’s not one of those pre-paid cell phones. If we are able to identify who made the call, he will be charged with making a terroristic threat.”

Meeks said the evacuation and search process took less than an hour.