Autonomous system
AS23816 YAHOO LY Corporation
Hosting APNIC Content
Summary
LY Corporation
business portal content japan
The AS handle YAHOO is held by LY Corporation.
What it's used for
- The address space carries corporate infrastructure for a major Japanese internet portal, evidenced by the consistent netname
YAHOO-NETacross all announced prefixes. - The AS announces 66,560 IPv4 addresses across 7 prefixes and 1 IPv6 prefix, while maintaining 24 observed neighbours. This ratio of moderate address space against a significant number of peers indicates a large-scale business network with substantial peering requirements rather than a pure transit provider.
Notable
- All RDAP registrants for the largest prefixes are listed as
Japan Network Information Center; IRT-JPNIC-JP, which aligns with the Japanese origin of the operator and theYAHOO-NETnetnames. - LY Corporation was formed in October 2023 through the reorganization of Group companies including LINE Corporation and Yahoo Japan Corporation, consolidating their digital assets under a single corporate entity.
- The inventory consists of seven distinct IPv4 blocks ranging from /17 to /22 sizes, alongside a single /32 IPv6 prefix, reflecting a segmented corporate estate.
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
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.39 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.162 |
Transit providers
7 upstream, 3 downstream and 16 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 66.56K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 8 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS23816- Registry name
- YAHOO
- Registered
- 2003-06-16
- Last changed
- 2025-06-18
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Yahoo Japan
- Network type
- Content
- Scope
- Regional
- Traffic ratio
- Heavy Outbound
- Peering policy
- Selective
- IRR as-set
AS-YAHOO-JP- Present at
- 3 exchanges
- Facilities
- 1 facilities
- Website
- http://www.yahoo.co.jp/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 8 valid, 0 with no ROA
- ROAs
- 12 authorising AS23816
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 12 naming AS23816
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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