Revelation 1:8

Alpha : a title of Jesus Christ

Omega : the last letter of Greek alphabet

Revelation 11:8

Egypt : descendants of Mizraim
(30° 6´, 31° 20´); (30° 6´, 31° 20´)

Sodom : an ancient town somewhere in the region of the Dead Sea that God destroyed with burning sulphur,a town 25 km south of Gomorrah and Masada
(31° 11´, 35° 23´)

Revelation 21:22

There is no Names related to this verses.