Raw Data - RIPE-NCC/bgpdump GitHub Wiki
Sources of raw data that BGPdump can analyze.
https://www.ripe.net/analyse/internet-measurements/routing-information-service-ris/ris-raw-data
http://archive.routeviews.org/
https://www.pch.net/resources/Raw_Routing_Data/
https://www.isolario.it/Isolario_MRT_data/
The following software can produce MRT files: