subnet.im

AS210101Cyber Pathogen Ltd

United KingdomRegistryRIPE NCC

As of 10th November 2026, AS210101 (Cyber Pathogen Ltd), a network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 1.3k addresses. By IPv4 address space that makes it the 34,015th-largest of the 80,723 networks we see originating IPv4, and the 960th-largest of 2,122 in the United Kingdom. It is seen behind 1 upstream network, most often AS20473 (The Constant Company, LLC). 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

2

IPv6 prefixes

0

IPv4 addresses

1.3k

IPv6 /64s

0

Upstream graph

The networks AS210101 is seen behind, one and two hops out, drawn from real AS paths.

AS210101Toward the internet core
Upstream graph for AS210101: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS210101Cyber Pathogen LtdThis networkAS20473The Constant Comp…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS210101 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 AS210101
NetworkCountryRelationshipPathsVantage pts
AS20473The Constant Company, LLCUSPeer15276

Prefixes

The largest blocks AS210101 originates, widest first.

Largest prefixes originated by AS210101
PrefixAddressesVisibility
85.117.224.0/221k76/76
5.255.60.0/2425676/76

Routing health

How AS210101'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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