The presenters' initial apology for the prank call was followed by further boasts about it.
They have since been bombarded with online abuse following the news that nurse Jacintha Saldanha has died.
The pair remarked during their Hot30 Countdown show how their efforts were the "easiest prank call ever".
The duo have continued to boast about the gag on Twitter, while in a video on the radio station's website they laugh and joke about it.
Greig giggles: "They were the worst accents ever and when we made that phone call, we were sure 100 people at least before us would have tried the same thing."
Meanwhile, a banner on the station's website continues to proclaim it to be the "biggest royal prank ever".
The pair, who only began hosting the nightly chart show earlier this year, were clearly delighted with the amount of publicity the gag had given them.
Greig, whose Twitter profile proclaims: "I co-host the Hot30 Countdown and Hot30 TV, I attempted to race around the world on the Amazing Race Australia and I have a half-decent rack," has continued to tweet about the global reaction over the past few days.