Pakistan have not hosted any international cricket since the terrorist attacks on the Sri Lankan team bus in Lahore in March 2009.
Bangladesh twice backed away from touring for a short series in 2012 and a year later, citing security fears.
Ireland were due to play a short limited over series in Pakistan last month, but terrorist attacks on Karachi airport resulted in the tour being called off.
PCB chairman Khan said he had visited Sri Lanka, Bangladesh and India to lobby for a revival of cricket tours to Pakistan.
“I toured India, Sri Lanka and Bangladesh and the response was very good,” Khan told AFP.