Tier1 BGP filter generation data sources & frequency

Fri May 21 23:40:21 UTC 2021

Is there any compiled information for Tier1 providers on the supported BGP filter generation data sources and frequency?   

This is what I have been able to determine so far:   
- TATA AS6453:   IRR and RPKI ROAs     (http://lg.as6453.net/doc/cust-routing-policy.html)
- Cogent AS174: unknown
- NTT 2914:   IRR, ARIN WHOIS OriginAS,  NIC.br whois, RPKI ROAs   (https://www.gin.ntt.net/support-center/policies-procedures/routing/)
- Lumen AS3356:   IRR
- Telia AS1299:   IRR

TATA is going to deprecate new RADB, NTTCOM, and ALTDB route objects starting Aug 15, 2021 and I was hoping that more providers would add RPKI ROAs as a data source for BGP filter generation.    Supporting RPKI ROAs would mean that you don't have to create both IRR route objects and RPKI ROAs for each IP block.  

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Clinton Work