Sector 70 also known as the Qo'noS sector was a region of Klingon space in the Beta Quadrant. Sector 70 was located inside the Omega Leonis sector block. The Klingon homeworld and capital planet Qo'noS was located in this sector.
In 2259, in the alternate reality, Khan Noonien Singh used a portable transwarp beaming device to flee from his attack on Starfleet Headquarters in San Francisco with a long-range site-to-site transport all the way from the stolen jumpship 208 on Earth to Ketha Province on Qo'noS in sector 70. (Star Trek Into Darkness, display graphics)