asn.dev

Autonomous system

AS23879 YAHOO-INY INY Edge site

Hosting APNIC

IPv4 addresses 256 1 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 2 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Yahoo

United States of America · AI-generated

business content edge dns

YAHOO-INY is operated by Yahoo Inc.

What it's used for

  • The space carries Yahoo's internal infrastructure, evidenced by reverse DNS entries such as a10.dns.iny.yahoo.com and lo0.pat2.iny.yahoo.com.
  • The AS announces 256 IPv4 addresses and 2 IPv6 prefixes while maintaining 7 observed neighbours, indicating a small, dedicated corporate edge site rather than a transit or access network.

Notable

  • The RDAP registrant for the announced prefix 27.123.42.0/24 is listed as YAHOO INC, which aligns directly with the AS holder.
  • The address inventory consists of a single IPv4 /24 block and two IPv6 /48 prefixes, all located in the United States.

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 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX MumbaiMumbai, India103.27.170.8
Extreme IX MumbaiMumbai, India103.77.108.64

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4755TATA Communications formerly VSNL is Leading ISP127
AS24482SG.GS1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 256 addresses IPv6 2 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS23879
Registry name
YAHOO-INY
Registrant
Yahoo Inc.
Abuse contact
rir-admin@yahooinc.com
Registered
2008-09-04
Last changed
2024-03-01
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS23879
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
21 naming AS23879

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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