subnet.im

AS20847Previder B.V.

NetherlandsRegistryRIPE NCC

As of 11th November 2026, AS20847 (Previder B.V.), a network registered in the Netherlands with RIPE NCC, originates 15 IPv4 prefixes covering 49.9k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 4,518th-largest of the 80,743 networks we see originating IPv4, and the 67th-largest of 1,042 in the Netherlands. It is seen behind 41 upstream networks, most often AS3356 (Lumen (Level 3)) and AS3257 (GTT Communications Inc.), and in front of 10 downstream networks. 84% 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

15

IPv6 prefixes

10

IPv4 addresses

49.9k

IPv6 /64s

50.5B

Upstream graph

The networks AS20847 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS20847 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

248

adjacent networks

Upstreams
4117%
Peers
19779%
Downstreams
104%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 41.

Prefixes

The largest blocks AS20847 originates, widest first.

Largest prefixes originated by AS20847
PrefixAddressesVisibility
62.165.64.0/1816.4k76/76
84.241.128.0/1816.4k76/76
80.65.96.0/198.2k76/76
31.7.0.0/221k76/76
31.7.4.0/221k76/76
141.138.168.0/221k76/76
185.67.200.0/221k76/76
185.158.200.0/221k76/76
195.60.212.0/221k76/76
195.211.72.0/221k76/76

Routing health

How AS20847'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

  • Valid84.0%21
  • Invalid0.0%0
  • No ROA16.0%4

Propagation

  • Globally propagated90% of full-feed peers or more100.0%25
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 10 prefixes

  • /2934.4B × /6410.0%1
  • /324.3B × /6420.0%2
  • /332.1B × /6430.0%3
  • /341.1B × /6410.0%1
  • /4865.5k × /6430.0%3

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn84.241.149.0/249th Nov 2026
  • Announced84.241.149.0/249th Nov 2026
  • Withdrawn141.138.168.0/2318th Oct 2026
  • Announced141.138.168.0/2317th Oct 2026
  • Withdrawn31.7.2.0/2314th Oct 2026
  • Announced31.7.2.0/2313th Oct 2026

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