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AS212329Netcraft Ltd

United KingdomRegistryRIPE NCC

As of 25th October 2026, AS212329 (Netcraft Ltd), a network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 48,607th-largest of the 79,683 networks we see originating IPv4, and the 1,368th-largest of 2,078 in the United Kingdom. It is seen behind 1 upstream network, most often AS2856 (British Telecommunications). 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

2

IPv4 addresses

512

IPv6 /64s

131k

Upstream graph

The networks AS212329 is seen behind, one and two hops out, drawn from real AS paths.

AS212329Toward the internet core
Upstream graph for AS212329: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS212329Netcraft LtdThis networkAS2856British Telecommu…AS5400British Telecommu…AS9002RETN Limited

Networks observed one and two hops upstream of AS212329 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 AS212329
NetworkCountryRelationshipPathsVantage pts
AS2856British TelecommunicationsGBPeer278139

Prefixes

The largest blocks AS212329 originates, widest first.

Largest prefixes originated by AS212329
PrefixAddressesVisibility
91.236.64.0/2425676/76
91.236.65.0/2425676/76
2a10:a700:1::/4865.5k × /6463/63
2a10:a700:2::/4865.5k × /6463/63

Routing health

How AS212329'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 26th Sept 2026.

No announcement by AS212329 started or stopped in this period.

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