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AS131651Lazco Corporation

TaiwanRegistryAPNIC

As of 27th September 2026, AS131651 (Lazco Corporation), a network registered in Taiwan with APNIC, originates 1 IPv4 prefix covering 256 addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 59,129th-largest of the 79,523 networks we see originating IPv4, and the 208th-largest of 234 in Taiwan. It is seen behind 1 upstream network, most often AS131630 (Lazco Corporation). 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

1

IPv6 prefixes

1

IPv4 addresses

256

IPv6 /64s

65.5k

Upstream graph

The networks AS131651 is seen behind, one and two hops out, drawn from real AS paths.

AS131651Toward the internet core
Upstream graph for AS131651: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS131651Lazco CorporationThis networkAS131630Lazco CorporationAS6939Hurricane Electri…AS131657Hong Da Storage E…

Networks observed one and two hops upstream of AS131651 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS131651
NetworkCountryRelationshipPathsVantage pts
AS131630Lazco CorporationTWPeer144144

Prefixes

The largest blocks AS131651 originates, widest first.

Largest prefixes originated by AS131651
PrefixAddressesVisibility
162.4.237.0/2425681/81
2402:4f20:5::/4865.5k × /6463/64

Routing health

How AS131651'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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