asn.dev

Autonomous system

AS36763 WBBH - Hearst-Argyle Television, Inc.

Unclassified ARIN

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Hearst-Argyle Television

United States of America · AI-generated

media corporate broadcasting us

The AS handle WBBH is held by Hearst-Argyle Television, Inc.

What it's used for

  • The address space carries corporate infrastructure for Hearst, with both prefixes registered under the netname HEARSTCORP and registrant Hearst Corporation.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • The RDAP registrants for both announced prefixes are Hearst Corporation, which aligns with the announcer Hearst-Argyle Television, Inc., a subsidiary of the parent company.
  • Hearst-Argyle Television was formed from the merger of Hearst Corporation's broadcasting properties and Argyle Television Inc., and is now known as Hearst Television.
  • The inventory consists of two /24 blocks (167.173.31.0/24 and 167.173.223.0/24), representing a modest, finely subdivided 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

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

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

ASNetworkPaths seen
AS3356Level 3 Parent, LLC61
AS33661Comcast Cable Communications, LLC60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36763
Registry name
WBBH
Registrant
Hearst-Argyle Television, Inc.
Abuse contact
HTS-ARIN-Admin@hearst.com
Registered
2006-04-21
Last changed
2023-04-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS36763
ASPA
no ASPA record
IRR
0% registered · 0 of 2 announcements
Route objects
0 naming AS36763

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: 449 networks and 1,846 prefixes, as published 2026-11-02. 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