In this photo from May 22, 2011, Christian radio host Harold Camping speaks outside of his home in Alameda, Calif. (Brandon Tauszik/AP Photo)

ABC News’ Alyssa Newcomb and Lyneka Little Report:

Doomsday prophet Harold Camping’s revised prediction that the world would end on Oct. 21, 2011 turned out, once again, not to come true.

According to the preacher’s prediction, which was revised after his May 21, 2011 prophecy failed to materialize, Christians would ascend to heaven, while sinners would be left behind to suffer five months’ worth of natural disasters before the earth ignited into a fireball.

Camping’s Family Radio did not respond to ABCNews.com’s earlier requests for comment, and seems to be keeping mum on yet another “doomsday” that has come and gone.

“I’m sorry to disappoint you, but we at Family Radio have been directed to not talk to the media or the press,” Camping’s daughter Susan Espinoza wrote to the Associated Press on Friday.

Although this is Camping’s second failed prediction this year, a source familiar with the preacher said he has predicted the end of the world 12 times. His first prediction of the end of times apparently dates back to 1978.

But it was his May 21, 2011 prediction that drew the most fanfare. Camping went on a media blitz, inspiring followers to drain their personal savings to warn Christians that the end was near.

Family Radio spent millions on more than 5,000 billboards and 20 RVs plastered with the doomsday message marking May 21 as the apocalypse, according to the Associated Press.

His May 21st End of the World website stated: “…the Bible has given us absolute proof that the year 2011 is the end of the world during the Day of Judgment… Amazingly, May 21, 2011 is the 17th day of the 2nd month of the Biblical calendar of our day…”

Camping, who stated he pinpointed the date for the end of the world, placed the time of the rapture at 5:59 p.m. But the day came and went without a big bang. Later he said his math was off.

Callers to Open Forum, the show Camping hosts, expressed outrage.

“You’re really pathetic, you know? I wasted all my money because of you. I was putting all my money and my hopes on you… I wish I could see you face to face, I would smack you. Mr. Camping, you always say a lot of (redacted) I lost all my money because of you, you (redacted),” a caller said, according to The Christian Post.

There is no word yet on whether the 89-year-old Camping plans to offer another prediction, but if history is any indicator, this won’t be the last Camping’s listeners have heard from the doomsday prophet.