Continum AG manages online and e-commerce applications in several datacenters in West Germany.
All internetwork-related data should be retrievable from RIPE-DB entries, search for AS 20849 .
Note regarding announced prefixes:
While we strive for announcing as few prefixes as possible, it is mandatory to honour existing more-specifics.
Aggregation and ignoring of more-specific prefixes - which are typically /23 or larger - will result in loss of functionality and support effort.