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AS59717Arco Limited

United KingdomRegistryRIPE NCC

As of 11th November 2026, AS59717 (Arco Limited), a network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 34,029th-largest of the 80,743 networks we see originating IPv4, and the 960th-largest of 2,122 in the United Kingdom. It is seen behind 2 upstream networks, most often AS6461 (Zayo Bandwidth) and AS174 (Cogent Communications, 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

1

IPv4 addresses

1.3k

IPv6 /64s

34.4B

Upstream graph

The networks AS59717 is seen behind, one and two hops out, drawn from real AS paths.

AS59717Toward the internet core
Upstream graph for AS59717: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59717Arco LimitedThis networkAS174Cogent Communicat…AS6461Zayo BandwidthAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS32590Valve Corporation

Networks observed one and two hops upstream of AS59717 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

5

adjacent networks

Upstreams
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS59717
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer13587
AS174Cogent Communications, LLCUSPeer7548

Prefixes

The largest blocks AS59717 originates, widest first.

Largest prefixes originated by AS59717
PrefixAddressesVisibility
45.80.124.0/221k75/76
91.239.72.0/2425675/76
2a0e:4280::/2934.4B × /6460/63

Routing health

How AS59717'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS59717 started or stopped in this period.

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