AS21541 101Netlink
AS21541 (101NETLINK) is registered to 101Netlink in US. It originates 19 prefixes in the global routing table.
Who holds AS21541
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS21541 announces
Prefixes originated by AS21541 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 AS21541 is reached through
The AS just before AS21541 in the paths our looking glass collectors hold, for 19 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Provider authorization
AS21541 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.
The 1 ASes that name AS21541 as a provider
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
Route objects with origin AS21541: LEVEL3 14 · ARIN 1