Omnipresence
From The Character Database
Omnipresence is the quality of being present everywhere, at all times and nowhere at the same time, which refers to an unlimited presence. With this ability, one can be everywhere at once, i.e. at any point in space at any given moment. Some characters are omnipresent within a single universe, while others are omnipresent on a multiverse or even larger scale.
Nigh-Omnipresence is when someone is almost everywhere at once. An example of this is omnipresence within a city or planet.
Occasionally the term is used in a restricted way, such as "omnipresent in a city" or "omnipresent all over the earth". Although this is not technically correct, the meaning is obvious.