The RIPE NCC MyASN service

Do you operate a network? Do you know when another AS announces your prefix?
With the RIPE NCC MyASN service, you will!

Why MyASN helps you

The MyASN service notifies network operators when a prefix is announced with an incorrect AS path. An AS path is seen as incorrect when it does not match with a regular expression. As not everyone is familiar with regular expressions, MyASN provides several easy ways to define typical checks, like "the origin of this prefix must be AS x" or "the origin of this prefix must be AS x and transit may be provided through y or z". However, as any AS path regular expression can be set, the MyASN service is suitable for regular expressions gurus as well.

Notifications

The MyASN service can send alerts by e-mail or to your own syslog server. Alarms can be divided in different groups that each have their own syslog and e-mail notification settings. Alarms have many options to configure, including the option for a set of more specific prefixes to be excluded from alarms.

RIS

The MyASN service generates alerts from data gathered by the RIPE NCC routing information service which has a very wide view on internet routing from many locations. It has over 600 peers and is likely to spot announcements of your address space by other ASes.

Open

MyASN is open to be used by anyone. You don't have to be a Local Internet Registry (LIR) and your ASN doesn't have to be assigned by the RIPE NCC. There are no fees to use the MyASN service.

More information

For more information, read the MyASN getting started guide or the MyASN FAQ. If that does not answer your question, don't hesitate to contact us at ris@ripe.net.

Login or request account

Click here to login or request an account below. Your login name will be user@asn, so if you registered with user 'test' and ASN 12654, your username would be 'test@12654' (without quotes).