asn.dev

Autonomous system

AS18140 YAHOO-18140 LY Corporation

Unclassified APNIC

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 1 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

LY Corporation

Japan · AI-generated

business corporate japan

The AS handle YAHOO-18140 is held by LY Corporation.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname YJ-AMERICA-BLK and registrant Actapio, Inc.
  • The inventory consists of 4096 IPv4 addresses within a single prefix, 104.145.16.0/20, with 0 IPv6 prefixes announced
  • With only 1 observed neighbour, the low ratio of addresses to peers indicates an internal corporate estate rather than a transit or access network

Notable

  • The RDAP registrant Actapio, Inc. differs from the AS holder LY Corporation, reflecting the corporate reorganization history
  • LY Corporation was formed in October 2023 through the reorganization of Group companies including LINE Corporation and Yahoo Japan Corporation
  • The address inventory is a single contiguous block, consistent with a dedicated corporate allocation

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Seattle Internet ExchangeSeattle, United States206.81.81.88

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23816LY Corporation60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS18140
Registry name
YAHOO-18140
Registered
2002-03-21
Last changed
2025-06-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
2 authorising AS18140
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS18140

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,849 prefixes, as published 2026-10-30. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check