The second half of 2011 holds juicy opportunities for Apple to leap in its sales.

The California-based technology giant is reportedly prepared to unleash as many as 56 million iPhones, of which more than half are the much-anticipated iPhone 5.

Supply chain sources in Taiwan told DigiTimes that Apple has upward adjusted the total order volume for iPhones, consisting of iPhone 3GS, iPhone 4, iPhone 4 CDMA and iPhone 5, for the second half of 2011 by 12 to 13 percent.

The year 2011 will see 56 million units of iPhones, and around 26 million will be the upcoming fifth-generation iPhone.

While iPhone 5 orders for the third quarter dropped from seven million to 5.5 to 6 million units, its orders for the fourth quarter have been raised from 14 million to over 20 million units, according to the sources.

Apple is said to reach total shipments of 95 million iPhones in 2011. in the first half of 2011, the company has reported sales of 20.34 million units and 18.65 million iPhones.

The figures are currently speculative. Apple has offered no firm data regarding its, as-yet unconfirmed next iPhone. Despite this, current reports generally speculate that the device will be released in September or October this year.