A BGP ASN (Autonomous System Number) is a unique identifier linked to your company, so that it can be identified on the Internet. So other Internet participants know who is originating the receiving traffic. A BGP ASN alone is not enough. You also need a public IP subnet that is actually being advertised with this ASN identifier in front of it via BGP, hence BGP ASN. Usually small companies do not need an ASN, they can rely on their provider such as Open Coconut in order to send and receive traffic from the Internet. On the other end companies with bigger infrastructure usually own one or multiple ASN.
If you need a ASN, as a member of the RIPE organization, Open Coconut can sponsor your BGP ASN at a much lower cost than if you were to buy directly from the RIPE (which requires membership).
So if you need a BGP ASN feel free to get in touch with us via our chat or via email at firstname.lastname@example.org