subnet.im

AS200149Erwin Alexander Ising

NetherlandsRegistryRIPE NCC

As of 11th November 2026, AS200149 (Erwin Alexander Ising), a network registered in the Netherlands with RIPE NCC, originates 1 IPv6 prefix. It is seen behind 5 upstream networks, most often AS25091 (IP-Max SA) and AS28917 (Fiord Networks, UAB), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

1

IPv4 addresses

0

IPv6 /64s

65.5k

Upstream graph

The networks AS200149 is seen behind, one and two hops out, drawn from real AS paths.

AS200149Toward the internet core
Upstream graph for AS200149: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS200149Erwin Alexander I…This networkAS20847Previder B.V.AS24940Hetzner Online Gm…AS25091IP-Max SAAS28917Fiord Networks, U…AS39122Blacknight Intern…AS3356Lumen (Level 3)AS2914NTT America, Inc.AS3257GTT Communication…AS8298IPng Networks GmbHAS56662Marcin GondekAS57866Fusix Networks B.…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS200149 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

32

adjacent networks

Upstreams
516%
Peers
2681%
Downstreams
13%

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

Upstreams of AS200149
NetworkCountryRelationshipPathsVantage pts
AS25091IP-Max SACHPeer33
AS28917Fiord Networks, UABLTPeer32
AS39122Blacknight Internet Solutions LimitedIEPeer11
AS24940Hetzner Online GmbHDEPeer11
AS20847Previder B.V.NLPeer11

Prefixes

The largest blocks AS200149 originates, widest first.

Largest prefixes originated by AS200149
PrefixAddressesVisibility
2001:67c:2f08::/4865.5k × /645/63

Routing health

How AS200149'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%1
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%100.0%1

Prefix sizes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS200149 started or stopped in this period.

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