core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

carrier

Canonical URL: http://schema.org/carrier

Thing > Property > carrier

'carrier' is an out-dated term indicating the 'provider' for parcel delivery and flights.

Usage: Between 10 and 100 domains
Values expected to be one of these types
Organization
Used on these types
Flight
ParcelDelivery
supersededBy
provider

Schema Version 3.4