Do you need a oceanic clearance for this flight. I know you are twice in Gander airspace , but not sure.
SEDOG Q901 ROSVO MOFAT AVUTI 6050N 6240N 6330N EPENI ELDIS
I recently flew the opposite direction: BIKF-KBUF, route similar to yours. We did not receive any oceanic clearance, it was a normal IFR flight.
Thank you
If the applicable controllers were online, you would/should have received an ocean clearance.