What is "FlightAware Transoceanic" ?

Can someone explain to me what is "FlightAware Transoceanic " location type? Is this just an estimate or with some kind of adjustment when a/p pass over reporting points?

Example below:

07:33PM 48.0000 -150.0000 291° West 473 544 32,000 60 Climbing Oakland Oceanic (ODAPS)

07:42PM 48.3833 -151.5667 289° West 471 542 32,000 Level Oakland Oceanic (ODAPS)

07:42PM 48.4011 -151.6465 289° West 473 544 32,000 Level FlightAware Transoceanic

07:43PM 48.4449 -151.8338 289° West 473 544 32,000 Level FlightAware Transoceanic
07:44PM 48.4883 -152.0215 289° West 473 544 32,000 Level **FlightAware Transoceanic **

The transoceanic positions include the next expected point or two, so we interpolate between them.