“And in those days Peter stood up in the midst of the disciples, and said, (the number of names together were about an hundred and twenty,)”
King James Version (KJV)
1:15 The number of persons together - Who were together in the upper room. were a hundred and twenty - But he had undoubtedly many more in other places; of whom more than five hundred saw him at once after his resurrection, #1Cor 15:6|.
Ac 1:15 And in those days. The interval of ten days. Were about an hundred and twenty. This was the number of disciples at Jerusalem, but not all who were then disciples. See 1Co 15:6.