subnet.im

AS218239AntiDDoS Networks LTD

United KingdomRegistryRIPE NCC

As of 11th November 2026, AS218239 (AntiDDoS Networks LTD), a network registered in the United Kingdom with RIPE NCC, originates 17 IPv4 prefixes covering 4.4k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 16,903rd-largest of the 80,747 networks we see originating IPv4, and the 512th-largest of 2,122 in the United Kingdom. It is seen behind 7 upstream networks, most often AS137409 (GSL Networks Pty LTD) and AS49581 (Ferdinand Zink trading as Tube-Hosting), and in front of 3 downstream networks. 94% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 78% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

17

IPv6 prefixes

1

IPv4 addresses

4.4k

IPv6 /64s

4.2M

Upstream graph

The networks AS218239 is seen behind, one and two hops out, drawn from real AS paths.

AS218239Toward the internet core
Upstream graph for AS218239: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS218239AntiDDoS Networks…This networkAS43298Storm Networks LLCAS49581Ferdinand Zink tr…AS62255BiMajLink d.o.o.AS137409GSL Networks Pty …AS199522LA FATTORIA DEL M…AS20764CJSC RASCOMAS6453TATA Communicatio…AS44592SkyLink Data Cent…AS174Cogent Communicat…AS1299Arelion (fka. Tel…AS8529Zain Omantel Inte…AS32590Valve Corporation

Networks observed one and two hops upstream of AS218239 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

20

adjacent networks

Upstreams
735%
Peers
1050%
Downstreams
315%

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

Upstreams of AS218239
NetworkCountryRelationshipPathsVantage pts
AS137409GSL Networks Pty LTDAUPeer644135
AS49581Ferdinand Zink trading as Tube-HostingDEPeer455137
AS62255BiMajLink d.o.o.SIPeer24261
AS199522LA FATTORIA DEL MOLISE DI SARPI FILIPPO S.A.SITPeer22175
AS43298Storm Networks LLCRUPeer2014
AS59796StormWall s.r.o.SKPeer96
AS35598INETCOM CARRIER LLCRUPeer74

Prefixes

The largest blocks AS218239 originates, widest first.

Largest prefixes originated by AS218239
PrefixAddressesVisibility
2.27.7.0/2425676/76
31.76.108.0/2425676/76
31.76.109.0/2425676/76
31.76.110.0/2425676/76
31.76.111.0/2425676/76
31.76.246.0/2425676/76
31.77.100.0/2425676/76
31.77.217.0/2425676/76
89.35.130.0/2425655/76
104.143.222.0/2425676/76

Routing health

How AS218239'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

  • Valid94.4%17
  • Invalid5.6%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more77.8%14
  • Partially propagated40% to 90%16.7%3
  • Seen by few peersUnder 40%5.6%1

Prefix sizes

IPv4 — 17 prefixes

IPv6 — 1 prefixes

  • /424.2M × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

18 announced and 0 withdrawn in all; the most recent are shown.

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