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AS212171Local NCC Ltd.

United KingdomRegistryRIPE NCC

As of 27th September 2026, AS212171 (Local NCC Ltd.), a network registered in the United Kingdom with RIPE NCC, originates 24 IPv4 prefixes covering 6.4k addresses. By IPv4 address space that makes it the 13,681st-largest of the 79,525 networks we see originating IPv4, and the 409th-largest of 2,074 in the United Kingdom. It is seen behind 1 upstream network, most often AS213887 (WAIcore Ltd). 92% 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

24

IPv6 prefixes

0

IPv4 addresses

6.4k

IPv6 /64s

0

Upstream graph

The networks AS212171 is seen behind, one and two hops out, drawn from real AS paths.

AS212171Toward the internet core
Upstream graph for AS212171: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS212171Local NCC Ltd.This networkAS213887WAIcore LtdAS30823aurologic GmbHAS35598INETCOM CARRIER L…

Networks observed one and two hops upstream of AS212171 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 AS212171
NetworkCountryRelationshipPathsVantage pts
AS213887WAIcore LtdGBPeer1,94381

Prefixes

The largest blocks AS212171 originates, widest first.

Largest prefixes originated by AS212171
PrefixAddressesVisibility
185.207.14.0/2351281/81
5.253.57.0/2425681/81
45.86.61.0/2425681/81
45.86.62.0/2425681/81
45.86.63.0/2425681/81
45.86.64.0/2425681/81
45.92.170.0/2425681/81
45.145.12.0/2425681/81
77.91.100.0/2425681/81
77.91.101.0/2425681/81

Routing health

How AS212171'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

  • Valid91.7%22
  • Invalid0.0%0
  • No ROA8.3%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%24
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 24 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

15 announced and 2 withdrawn in all; the most recent are shown.

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