North Carolina does not currently contain a megalopolis (a continuous, heavily urbanized corridor linking multiple major metros). The closest true megalopolis is the Northeast Megalopolis (Boston–NYC–Philly–Baltimore–DC).
Planners identify a broader megaregion stretching Birmingham–Atlanta–Charlotte–Raleigh. NC is a critical node, but integration lags behind the Northeast or Texas Triangle.
For now, NC is a multi-metro state with strong growth, not a fused megalopolis.