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AS8422NetCologne

GermanyRegistryRIPE NCCTypeEyeball

As of 10th November 2026, AS8422 (NetCologne), an access network registered in Germany with RIPE NCC, originates 38 IPv4 prefixes covering 577k addresses and 13 IPv6 prefixes. By IPv4 address space that makes it the 657th-largest of the 80,733 networks we see originating IPv4, and the 13th-largest of 2,330 in Germany. It is seen behind 46 upstream networks, most often AS9002 (RETN Limited) and AS3356 (Lumen (Level 3)), and in front of 35 downstream networks. 4% of its announcements have 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

38

IPv6 prefixes

13

IPv4 addresses

577k

IPv6 /64s

223B

Upstream graph

The networks AS8422 is seen behind, one and two hops out, drawn from real AS paths.

AS8422Toward the internet core
Upstream graph for AS8422: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8422NetCologneThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS9002RETN LimitedAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS6667Elisa Oyj

Networks observed one and two hops upstream of AS8422 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

322

adjacent networks

Upstreams
4614%
Peers
24175%
Downstreams
3511%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 46.

Upstreams of AS8422
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer1,56629
AS3356Lumen (Level 3)USPeer1,27418
AS6939Hurricane Electric LLCUSPeer1,23839
AS1299Arelion (fka. Telia Carrier)SEPeer86084
AS174Cogent Communications, LLCUSPeer3706
AS13030Init7 (Switzerland) Ltd.CHPeer3275
AS14537Continent 8 LLCUSPeer2182
AS7713PT Telkom Indonesia TbkIDPeer2133
AS18106Viewqwest Pte LtdSGPeer2102
AS32590Valve CorporationUSPeer2042

Prefixes

All 51

The largest blocks AS8422 originates, widest first.

Largest prefixes originated by AS8422
PrefixAddressesVisibility
78.34.0.0/15131k75/76
87.78.0.0/15131k75/76
89.0.0.0/15131k75/76
81.173.128.0/1732.8k75/76
84.44.128.0/1732.8k75/76
85.197.0.0/1816.4k75/76
195.14.192.0/1816.4k75/76
213.168.64.0/1816.4k75/76
213.196.192.0/1816.4k75/76
193.27.96.0/198.2k75/76

Routing health

How AS8422'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

  • Valid3.9%2
  • Invalid0.0%0
  • No ROA96.1%49

Propagation

  • Globally propagated90% of full-feed peers or more100.0%51
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 38 prefixes

IPv6 — 13 prefixes

  • /2868.7B × /647.7%1
  • /2934.4B × /6430.8%4
  • /324.3B × /6430.8%4
  • /4865.5k × /6430.8%4

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.