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AS35196FIRST SERVER LIMITED

United KingdomRegistryRIPE NCC

As of 27th September 2026, AS35196 (FIRST SERVER LIMITED), a network registered in the United Kingdom with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 11 IPv6 prefixes. By IPv4 address space that makes it the 59,127th-largest of the 79,525 networks we see originating IPv4, and the 1,593rd-largest of 2,074 in the United Kingdom. It is seen behind 16 upstream networks, most often AS35598 (INETCOM CARRIER LLC) and AS202984 (Team-Host (Chernyshov Aleksandr…), and in front of 6 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 17% of its routes reach at least 90% of full-feed peers, and 11 prefixes are also originated by another network.

At a glance

IPv4 prefixes

1

IPv6 prefixes

11

IPv4 addresses

256

IPv6 /64s

17.2B

Upstream graph

The networks AS35196 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS35196 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

71

adjacent networks

Upstreams
1623%
Peers
4969%
Downstreams
68%

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

Prefixes

The largest blocks AS35196 originates, widest first.

Largest prefixes originated by AS35196
PrefixAddressesVisibility
195.47.250.0/2425679/81
2a09:5302::/324.3B × /645/64
2a0e:d603::/324.3B × /645/64
2a0f:7b82::/324.3B × /645/64
2a0f:7b83::/324.3B × /645/64
2a09:5302:ffff::/4865.5k × /645/64
2a0a:9300:2::/4865.5k × /645/64
2a0a:9300:d0::/4865.5k × /645/64
2a0a:9300:d1::/4865.5k × /645/64
2a0a:9300:d2::/4865.5k × /645/64

Routing health

How AS35196'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%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more16.7%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%83.3%10

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 11 prefixes

  • /324.3B × /6436.4%4
  • /4865.5k × /6463.6%7

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2a0c:f647::/3221st Sept 2026

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