Barnstaple yes, but not the others.The Barnstaple, Okehampton and Exmouth branches all use physical tokens, operated remotely from Exeter 'box and collected from a token hut on the platform.
Cowley Bridge Junction to Crediton is TCB and thus no tokens. Crediton to Eggesford and Eggesford to Barnstaple are both NSTR, with tokens issues by the Crediton signalman, and via remote instruments on the platforms at Eggesford. (there's presumably a further instrument at Barnstaple to allow trains to be shut into the sidings there?).
Crediton to Meldon is worked by train staff issued by the Crediton signalman. I presume Dartmoor Railway have to collect this by road and take it to Okehampton for their operations?
Exmouth Junction to Exmouth is OTW, no tokens used.