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AS57037Manuel Krebs trading as MKQ Internetservice

GermanyRegistryRIPE NCC

As of 10th November 2026, AS57037 (Manuel Krebs trading as MKQ…), a network registered in Germany with RIPE NCC, originates 5 IPv4 prefixes covering 10k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 10,740th-largest of the 80,733 networks we see originating IPv4, and the 380th-largest of 2,330 in Germany. It is seen behind 1 upstream network, most often AS24940 (Hetzner Online GmbH). 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

5

IPv6 prefixes

3

IPv4 addresses

10k

IPv6 /64s

197k

Upstream graph

The networks AS57037 is seen behind, one and two hops out, drawn from real AS paths.

AS57037Toward the internet core
Upstream graph for AS57037: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS57037Manuel Krebs trad…This networkAS24940Hetzner Online Gm…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS57037 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 AS57037
NetworkCountryRelationshipPathsVantage pts
AS24940Hetzner Online GmbHDEPeer569139

Prefixes

The largest blocks AS57037 originates, widest first.

Largest prefixes originated by AS57037
PrefixAddressesVisibility
146.247.96.0/198.2k76/76
146.247.96.0/221k76/76
146.247.100.0/2425676/76
146.247.102.0/2425676/76
146.247.103.0/2425676/76
2a01:b180::/4865.5k × /6463/63
2a01:b180:2::/4865.5k × /6463/63
2a01:b180:3::/4865.5k × /6463/63

Routing health

How AS57037'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%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 3 prefixes

  • /4865.5k × /64100.0%3

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS57037 started or stopped in this period.

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