asn.dev

Autonomous system

AS14779 YAHOO

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Yahoo Holdings

United States · AI-generated

media hosting infrastructure

Every sampled address answered, and three of the names describe exactly what the box is.

What it's used for

  • One of a run of numbers a large web company uses for its edge sites. 768 IPv4 addresses across two prefixes, one IPv6 prefix, and one observed BGP neighbour.

Notable

  • Both 69.147.82.0/23 and 69.147.85.0/24 carry the netname A-YAHOO-US5, one entry in a numbered series.
  • All six sampled addresses returned a name, which is rare in this range.
  • Two are router interfaces, et18-1.bas3-1-edg.nya.yahoo.com and et51.rsw6-1-edg.nya.yahoo.com.
  • One is e37.ycpi.nya.yahoo.com, a serving name rather than a network one.

Interesting

  • The three-letter code in the middle of every name is the site, and it is the only part that changes between this number and its neighbours in the run. The same interface on the same class of box carries the same name at every location, which makes a traceroute readable to anyone who has learned the site codes and opaque to everyone else.
  • The router names encode the port before the box: an interface identifier, then a device role, then a position in the rack row. That ordering puts the most specific detail first, which is backwards from how domain names usually narrow, and it is what you get when the name is assembled by the system that configures the port.
  • A serving name sitting in the same block as the routers shows this site does both jobs from one range: the machines answering requests and the equipment carrying them to the door.
  • One upstream, a numbered netname, and full reverse coverage describes infrastructure built to a plan rather than accumulated.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

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

ASNetworkPaths seen
AS10310Yahoo Holdings Inc.215

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

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS14776
Registry name
YAHOO
Registrant
Yahoo Holdings Inc.
Abuse contact
rir-abuse@yahooinc.com
Registered
2000-02-07
Last changed
2020-07-21
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS14779
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
14 naming AS14779

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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