AS13043 Bayer AG
AS13043 (Bayer-AS) is registered to Bayer AG in DE. It originates 31 prefixes in the global routing table.
Who holds AS13043
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS13043 announces
Prefixes originated by AS13043 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
RPKI valid RPKI invalid no ROA covers it
Who AS13043 is reached through
The AS just before AS13043 in the paths our looking glass collectors hold, for 31 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| RIPE | Bayer-AS | RIPE-NCC-END-MNT, BAYER-MNT |
Route objects with origin AS13043: RADB 25 · RIPE 11