subnet.im

AS211750Stef Herman Anton Wolters trading as MC-Node

NetherlandsRegistryRIPE NCC

As of 10th November 2026, AS211750 (Stef Herman Anton Wolters trading as…), a network registered in the Netherlands with RIPE NCC, originates 12 IPv4 prefixes covering 3.1k addresses. By IPv4 address space that makes it the 20,470th-largest of the 80,733 networks we see originating IPv4, and the 297th-largest of 1,042 in the Netherlands. It is seen behind 3 upstream networks, most often AS62403 (PletX GmbH) and AS197071 (active 1 GmbH). 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

12

IPv6 prefixes

0

IPv4 addresses

3.1k

IPv6 /64s

0

Upstream graph

The networks AS211750 is seen behind, one and two hops out, drawn from real AS paths.

AS211750Toward the internet core
Upstream graph for AS211750: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS211750Stef Herman Anton…This networkAS174Cogent Communicat…AS62403PletX GmbHAS197071active 1 GmbHAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6453TATA Communicatio…AS49581Ferdinand Zink tr…AS6939Hurricane Electri…AS30823aurologic GmbH

Networks observed one and two hops upstream of AS211750 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

7

adjacent networks

Upstreams
343%
Peers
457%
Downstreams
00%

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

Upstreams of AS211750
NetworkCountryRelationshipPathsVantage pts
AS62403PletX GmbHDEPeer70576
AS197071active 1 GmbHDEPeer15276
AS174Cogent Communications, LLCUSPeer5432

Prefixes

The largest blocks AS211750 originates, widest first.

Largest prefixes originated by AS211750
PrefixAddressesVisibility
31.57.101.0/2425676/76
31.57.245.0/2425676/76
45.128.157.0/2425676/76
45.128.158.0/2425676/76
82.108.131.0/2425676/76
87.76.218.0/2425675/76
87.232.103.0/2425676/76
109.64.18.0/2425676/76
140.233.164.0/2425676/76
151.243.127.0/2425676/76

Routing health

How AS211750'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 more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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