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AS402187AANSys Network LLC

United StatesRegistryARIN

As of 12th November 2026, AS402187 (AANSys Network LLC), a network registered in the United States with ARIN, originates 4 IPv4 prefixes covering 1k addresses. By IPv4 address space that makes it the 36,502nd-largest of the 80,772 networks we see originating IPv4, and the 8,243rd-largest of 18,759 in the United States. It is seen behind 2 upstream networks, most often AS62610 (Zenlayer Inc) and AS21859 (Zenlayer Inc). 25% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 25% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

1k

IPv6 /64s

0

Upstream graph

The networks AS402187 is seen behind, one and two hops out, drawn from real AS paths.

AS402187Toward the internet core
Upstream graph for AS402187: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS402187AANSys Network LLCThis networkAS21859Zenlayer IncAS62610Zenlayer IncAS2914NTT America, Inc.AS4229Zenlayer IncAS29752Zenlayer Inc

Networks observed one and two hops upstream of AS402187 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS402187
NetworkCountryRelationshipPathsVantage pts
AS62610Zenlayer IncUSPeer7777
AS21859Zenlayer IncUSPeer32

Prefixes

The largest blocks AS402187 originates, widest first.

Largest prefixes originated by AS402187
PrefixAddressesVisibility
31.58.99.0/242561/78
95.134.154.0/242561/78
103.102.132.0/242561/78
191.96.105.0/2425677/78

Routing health

How AS402187'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

  • Valid25.0%1
  • Invalid75.0%3
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more25.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%75.0%3

Prefix sizes

IPv4 — 4 prefixes

Recent changes

Announcements that started or stopped since 13th Oct 2026.

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