subnet.im

AS2003733xK Tech GmbH

GermanyRegistryRIPE NCC

As of 11th November 2026, AS200373 (3xK Tech GmbH), a network registered in Germany with RIPE NCC, originates 198 IPv4 prefixes covering 64.5k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 4,058th-largest of the 80,763 networks we see originating IPv4, and the 124th-largest of 2,331 in Germany. It is seen behind 13 upstream networks, most often AS835 (GoCodeIT Inc) and AS9002 (RETN Limited). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

198

IPv6 prefixes

10

IPv4 addresses

64.5k

IPv6 /64s

103B

Upstream graph

The networks AS200373 is seen behind, one and two hops out, drawn from real AS paths.

AS200373Toward the internet core
Upstream graph for AS200373: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2003733xK Tech GmbHThis networkAS835GoCodeIT IncAS6939Hurricane Electri…AS7713PT Telkom Indones…AS9002RETN LimitedAS24785Joint Transit (Br…AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS35280F5 Networks SARLAS3356Lumen (Level 3)AS6667Elisa OyjAS20562Open Peering (Bro…

Networks observed one and two hops upstream of AS200373 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

69

adjacent networks

Upstreams
1319%
Peers
5681%
Downstreams
00%

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

Upstreams of AS200373
NetworkCountryRelationshipPathsVantage pts
AS835GoCodeIT IncCAPeer9,213140
AS9002RETN LimitedGBPeer2,74857
AS24785Joint Transit (Broadband Hosting B.V.)NLPeer2,44941
AS6939Hurricane Electric LLCUSPeer40155
AS7713PT Telkom Indonesia TbkIDPeer2343
AS398465Rackdog LLCUSPeer12262
AS24940Hetzner Online GmbHDEPeer781
AS32590Valve CorporationUSPeer781
AS58511Swoop (Anycast Global Backbone)AUPeer781
AS25091IP-Max SACHPeer781

Prefixes

All 208

The largest blocks AS200373 originates, widest first.

Largest prefixes originated by AS200373
PrefixAddressesVisibility
195.63.0.0/204.1k1/77
217.181.64.0/204.1k1/77
195.63.0.0/221k77/77
195.63.4.0/221k77/77
195.63.8.0/221k77/77
195.63.12.0/221k77/77
217.181.64.0/221k77/77
217.181.68.0/221k77/77
217.181.72.0/221k77/77
217.181.76.0/221k77/77

Routing health

How AS200373'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%208
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.0%206
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%1.0%2

Prefix sizes

IPv4 — 198 prefixes

IPv6 — 10 prefixes

  • /2934.4B × /6420.0%2
  • /324.3B × /6480.0%8

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.