Hi,
Each route on the internet originated by an AS is specified using a route object in the RIR database that the AS belongs to according to the region. The "route:" attribute is the address prefix of the route and the "origin:" attribute is the AS number of the AS that originates the route into the internet.
Please do check the following document (its for RIPE but the procedures are identical for all RIRs).
HTH, please do rate all heplful replies,
Mohammed Mahmoud.
