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AS211507Julian Achter

GermanyRegistryRIPE NCC

As of 10th November 2026, AS211507 (Julian Achter), a network registered in Germany with RIPE NCC, originates 14 IPv4 prefixes covering 3.6k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 19,320th-largest of the 80,733 networks we see originating IPv4, and the 674th-largest of 2,330 in Germany. It is seen behind 5 upstream networks, most often AS216078 (Liam Kremer) and AS203380 (DA International Group Ltd.). 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

14

IPv6 prefixes

9

IPv4 addresses

3.6k

IPv6 /64s

24.2M

Upstream graph

The networks AS211507 is seen behind, one and two hops out, drawn from real AS paths.

AS211507Toward the internet core
Upstream graph for AS211507: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS211507Julian AchterThis networkAS36530IDC CubeAS135330ADCDATA.COMAS203380DA International …AS213468HD-decor OyAS216078Liam KremerAS17433Hytron Network Se…AS174Cogent Communicat…AS6939Hurricane Electri…AS9002RETN LimitedAS57344Telehouse ADAS207003Web1 OyAS50917Diederik Focko de…

Networks observed one and two hops upstream of AS211507 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

10

adjacent networks

Upstreams
550%
Peers
550%
Downstreams
00%

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

Upstreams of AS211507
NetworkCountryRelationshipPathsVantage pts
AS216078Liam KremerDEPeer1,124138
AS203380DA International Group Ltd.BGPeer213137
AS135330ADCDATA.COMHKPeer139139
AS213468HD-decor OyFIPeer7575
AS36530IDC CubeUSPeer6363

Prefixes

The largest blocks AS211507 originates, widest first.

Largest prefixes originated by AS211507
PrefixAddressesVisibility
31.59.148.0/2425675/76
31.59.182.0/2425675/76
45.67.138.0/2425675/76
45.133.73.0/2425676/76
45.137.69.0/2425675/76
45.137.201.0/2425676/76
45.141.117.0/2425675/76
45.141.119.0/2425675/76
85.8.192.0/2425676/76
92.119.164.0/2425675/76

Routing health

How AS211507'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%23
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%23
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 14 prefixes

IPv6 — 9 prefixes

  • /4016.8M × /6411.1%1
  • /441M × /6477.8%7
  • /4865.5k × /6411.1%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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