You may use BGP Standard or Large Communities to
control route redistribution via the route servers:

(6695:6695), (6695:1:0): Redistribute to all route server peers (default)
(6695:), (6695:1:6695): Redistribute to
(0:), (6695:0:): Do not redistribute to
(0:6695), (6695:0:0): Do not redistribute

If uses a 16b ASN, you may use BGP Standard or Large Communities
If uses a 32b ASN, you have to use BGP Large Communities

There are additional communities for controlling announcements:

65535:0 GRACEFUL_SHUTDOWN
65535:666 BLACKHOLE
6695:65281 NO-EXPORT
6695:65282 NO-ADVERTISE

For more information on route server control and blackholing, please see:
https://www.de-cix.net/en/resources/service-information

The above information was collected from whois.ripe.net, using
object "AS6695" on October 15, 2024