Originally Posted by
Sar1n
The regions where you can recruit them are limited. Phalangitai can be recruited from hellenistic colony, but only in lands quite a way west, around Mesopotamia. Baktria can also get them from high level hellenistic government building or post-independence Basilike Patris, but that requires minor polis and first hellenistic colony, so conversion to get proper culture level and colony points can be a problem.
Pantadopoi Phalangitai can be recruited from native colonies in many regions west of Baktria. If you're unsure, check the recruitment viewer or the native colony building in building browser in the specific region.