I think often "prophets" in "built on the foundation of the apostles and prophets" to most refers to OT prophets. However this verse might counter that notion.
Eph 3:4 When you read this, you can perceive my insight into the mystery of Christ,
Eph 3:5 which was
not made known to the sons of men in other generations as it has
now been revealed to his holy apostles and prophets by the Spirit.
Eph 3:6 This mystery is that the Gentiles are fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel.