Block 27
Block 27, also known as the Omega Leonis sector block, was a region of space in the Beta Quadrant containing sector 70 of Klingon space. This sector was named after the star Omega Leonis. The Klingon homeworld and capital planet Qo'noS was located in sector 70.

In 2259, in the alternate reality,  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 block 27. (, display graphic)

External links 
 
 Omega Leonis sector block at Star Trek Online Wiki
Regions
Locations (alternate reality)