subnet.im

AS1523243XNET Co., Ltd.

JapanRegistryAPNIC

As of 25th October 2026, AS152324 (3XNET Co., Ltd.), a network registered in Japan with APNIC, originates 7 IPv4 prefixes covering 2k addresses. By IPv4 address space that makes it the 25,323rd-largest of the 79,682 networks we see originating IPv4, and the 465th-largest of 728 in Japan. It is seen behind 3 upstream networks, most often AS203446 (SMARTNET Germany GmbH) and AS138997 (Eons Data Communications Limited). 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

7

IPv6 prefixes

0

IPv4 addresses

2k

IPv6 /64s

0

Upstream graph

The networks AS152324 is seen behind, one and two hops out, drawn from real AS paths.

AS152324Toward the internet core
Upstream graph for AS152324: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1523243XNET Co., Ltd.This networkAS15022Adept Internet (P…AS138997Eons Data Communi…AS203446SMARTNET Germany …AS6939Hurricane Electri…AS30844Liquid Intelligen…AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS3257GTT Communication…AS6830Liberty Global Eu…

Networks observed one and two hops upstream of AS152324 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 AS152324
NetworkCountryRelationshipPathsVantage pts
AS203446SMARTNET Germany GmbHDEPeer22876
AS138997Eons Data Communications LimitedHKPeer22575
AS15022Adept Internet (Pty) Ltd CTZAPeer7676

Prefixes

The largest blocks AS152324 originates, widest first.

Largest prefixes originated by AS152324
PrefixAddressesVisibility
169.40.138.0/2351276/76
14.137.248.0/2425675/76
14.137.249.0/2425675/76
95.169.170.0/2425676/76
95.169.172.0/2425676/76
163.223.216.0/2425675/76
165.49.248.0/2425676/76

Routing health

How AS152324'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%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

Recent changes

Announcements that started or stopped since 25th Sept 2026.

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