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AS197540netcup GmbH

GermanyRegistryRIPE NCCTypeContent

As of 26th September 2026, AS197540 (netcup GmbH), a content network registered in Germany with RIPE NCC, originates 254 IPv4 prefixes covering 255k addresses and 16 IPv6 prefixes. By IPv4 address space that makes it the 1,126th-largest of the 79,480 networks we see originating IPv4, and the 28th-largest of 2,288 in Germany. It is seen behind 1 upstream network, most often AS47147 (Anexia Cloud Solutions GmbH). 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

254

IPv6 prefixes

16

IPv4 addresses

255k

IPv6 /64s

21.5B

Upstream graph

The networks AS197540 is seen behind, one and two hops out, drawn from real AS paths.

AS197540Toward the internet core
Upstream graph for AS197540: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS197540netcup GmbHThis networkAS47147Anexia Cloud Solu…AS1299Arelion (fka. Tel…AS9002RETN Limited

Networks observed one and two hops upstream of AS197540 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS197540
NetworkCountryRelationshipPathsVantage pts
AS47147Anexia Cloud Solutions GmbHATPeer21,546145

Prefixes

All 270

The largest blocks AS197540 originates, widest first.

Largest prefixes originated by AS197540
PrefixAddressesVisibility
37.120.160.0/198.2k81/81
5.45.96.0/204.1k81/81
37.120.160.0/204.1k81/81
46.38.224.0/204.1k81/81
152.53.128.0/204.1k81/81
188.68.32.0/204.1k81/81
202.61.224.0/204.1k81/81
37.120.184.0/212k81/81
37.221.192.0/212k81/81
46.38.232.0/212k81/81

Routing health

How AS197540'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

  • Valid98.9%267
  • Invalid0.0%0
  • No ROA1.1%3

Propagation

  • Globally propagated90% of full-feed peers or more99.6%269
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.4%1

Prefix sizes

IPv4 — 254 prefixes

IPv6 — 16 prefixes

  • /324.3B × /6431.3%5
  • /432.1M × /6431.3%5
  • /4865.5k × /6437.5%6

Recent changes

Announcements that started or stopped since 27th Aug 2026.

12 announced and 4 withdrawn in all; the most recent are shown.

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