AS 3356 (Level 3) -- Community 3356:666

Sriram, Kotikalapudi (Fed) kotikalapudi.sriram at
Wed Aug 4 13:28:39 UTC 2021

There is an old NANOG thread from 2005 that said AS 3356 (Level 3) were applying 3356:666 to indicate Peer route:
Also, see: 

Now network operators commonly use ASN:666 for BGP Blackholing Community.
(ASN = the operator's AS number)
See, for example, 

Does anyone know if AS 3356 has changed how it uses 3356:666?
I.e., is it known if they now use it for Blackholing Community? 

Thank you.


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