BGP AS-PATH list

Hi All,

When I am looking in to the CCIE R&S V5 advanced technology lab "BGP Regular Expressions" I can able to see some routes are originating from AS 60 but AS60 is not configured anywhere. Can you please explan  how it is doing.Sorry if I missed something small thing.

*>i 112.0.0.0 155.1.37.7 0 200 0 300 54 50 60 i

* i 155.1.37.7 0 200 0 300 54 50 60 i

Thanks,

Arun Mohan