Keegan Allen has tweeted his phone number.

Keegan Allen

Keegan Allen

The 'Pretty Little Liars' star took to Twitter on Friday (30.09.16) to share his digits with his fans in order to thank them for "being so amazing".

He tweeted: "Call me : - let me thank you for being so amazing (hopefully this number works) if not- I'll figure out another one (sic)"

And it wasn't long before the 27-year-old actor was plagued with so many phone calls to the number that it managed to crash the line and he was forced to find another means of communicating with his fans.

He added in another tweet: "Lol. 23k calls in 5 minutes crashed the number. I'll figure out another way."

Shortly after the phone line crashed, the 'King Cobra' actor took to Instagram instead to share a photo of himself topless and inform his adoring fans they can catch him at the Southern Women's Show in Birmingham, Alabama, on Saturday (01.10.16).

He wrote: "That number crashed after 23k people called in 5 minutes Come meet me - this Saturday OCT 1 in Birmingham Alabama @southernwomensshow Let's take another front of the line picture. Meeting everyone and signing#lifelovebeauty . Birmingham-Jefferson Convention Complex 2100 Richard Arrington Jr. Blvd. North Birmingham, AL 35203 Saturday, October 1, Noon - 2:30pm (sic)"

The news comes after the star treated fans to behind the scenes photos of Olympic gymnast Simone Biles when she visited the set of 'Pretty Little Liars'.

One black and white photo of the pair was captioned: "Sitting with the #GOAT (greatest of all time) @simonebiles (sic)"