Hello !

https://docs.db.ripe.net/Types-of-Queries/Historical-Queries

+ grep

Regards,

Dmitry

From: Salvador Bertenbreiter <salvadorb@gmail.com>
Sent: Thursday, July 16, 2026 2:53 AM
To: routing-wg@ripe.net
Subject: [routing-wg] Best source for historical RADB AS-SET data

Hi RIPE Routing-WG,
Does anyone know of an easy way to determine *when* a particular ASN was first added to a specific AS-SET in RADB?

More specifically, I am looking for a historical source (besides downloading the entire list of snapshots from ftp.radb.net and comparing) or tool that would allow me to identify the earliest date on which a given ASN appeared as a member of an AS-SET.

Thanks in advance for any suggestions.

Best regards,

Salvador Bertenbreiter