subnet.im

AS213527Lorenz Knak trading as IT-adjutor GmbH

GermanyRegistryRIPE NCCTypeContent

As of 26th September 2026, AS213527 (Lorenz Knak trading as IT-adjutor GmbH), a content network registered in Germany with RIPE NCC, originates 3 IPv4 prefixes covering 768 addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 44,910th-largest of the 79,516 networks we see originating IPv4, and the 1,441st-largest of 2,288 in Germany. It is seen behind 7 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS6204 (TMRC GROUP SRL), and in front of 3 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

6

IPv4 addresses

768

IPv6 /64s

393k

Upstream graph

The networks AS213527 is seen behind, one and two hops out, drawn from real AS paths.

AS213527Toward the internet core
Upstream graph for AS213527: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS213527Lorenz Knak tradi…This networkAS174Cogent Communicat…AS6204TMRC GROUP SRLAS6939Hurricane Electri…AS30823aurologic GmbHAS35133Eranium B.V.AS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS6830Liberty Global Eu…

Networks observed one and two hops upstream of AS213527 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

30

adjacent networks

Upstreams
723%
Peers
2067%
Downstreams
310%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS213527
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,00659
AS6204TMRC GROUP SRLROPeer30261
AS30823aurologic GmbHDEPeer11251
AS35133Eranium B.V.NLPeer8012
AS174Cogent Communications, LLCUSPeer3027
AS24940Hetzner Online GmbHDEPeer132
AS24482SG.GSSGPeer72

Prefixes

The largest blocks AS213527 originates, widest first.

Largest prefixes originated by AS213527
PrefixAddressesVisibility
2.58.214.0/2425680/81
212.56.58.0/2425680/81
213.177.162.0/2425680/81
2a14:47c0:1::/4865.5k × /6464/64
2a14:47c0:2::/4865.5k × /6463/64
2a14:47c0:3::/4865.5k × /6463/64
2a14:47c0:e::/4865.5k × /6463/64
2a14:47c0:f::/4865.5k × /6464/64
2a14:47c0:100::/4865.5k × /6463/64

Routing health

How AS213527's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%9
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 6 prefixes

  • /4865.5k × /64100.0%6

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn5.175.171.0/2421st Sept 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.