Sector XK-664 is a 10-by-10 sector, meaning that it is made up of 100 hexes. Of these hexes, 27 of them have stars.

0001 - Quizo's Landing
0004 - New Lapetus
0008 - Hymir Four
0009 - Unit II
0102 - Ashvinni Prime
0103 - Talou
0104 - Velorum Seven
0205 - New Vaalbara
0206 - New Ganaii
0301 - Noctae Five
0305 - Tau Ceti Five
0307 - Canis Stand
0309 - Antliae Five
0400 - Exhmun Seven
0404 - Curomo
0405 - Vulcia
0406 - New Ceres
0409 - Tari Two
0502 - Anuradha
0503 - Pascia
0509 - Shaddai
0801 - Vada
0804 - Vhurquiz
0806 - Xi Shi Seven
0908 - Saiyani