The registration of the Levites totaled 23,000, every male a month old or more; they were not numbered among the other Israelites, because no inheritance was given to them among the Israelites.

Numbers 1:47
The Levites, however, were not numbered along with them by the tribe of their fathers.

Numbers 1:49
"Do not number the tribe of Levi in the census with the other Israelites.

Numbers 3:39
The total number of Levites that Moses and Aaron counted by their clans at the LORD's command, including all the males a month old or more, was 22,000.

Numbers 18:23
The Levites are to perform the work of the Tent of Meeting, and they must bear their iniquity. This is a permanent statute for the generations to come. The Levites will not receive an inheritance among the Israelites.

Numbers 18:24
For I have given to the Levites as their inheritance the tithe that the Israelites present to the LORD as a contribution. That is why I told them that they would not receive an inheritance among the Israelites."

Numbers 26:63
These were the ones numbered by Moses and Eleazar the priest when they counted the Israelites on the plains of Moab by the Jordan, across from Jericho.

And those that were numbered of them were twenty and three thousand, all males from a month old and upward: for they were not numbered among the children of Israel, because there was no inheritance given them among the children of Israel.