Autonomous system
AS36787 WMTW-TV-PORTLAND
Unclassified ARIN
Summary
Hearst Television
media corporate broadcasting us
The AS handle WMTW-TV-PORTLAND is held by Hearst-Argyle Television, Inc., the broadcasting division of Hearst Communications.
What it's used for
- The address space carries corporate infrastructure for the media conglomerate, as indicated by the netname
HEARSTCORPand registrantHearst Corporationfor both announced prefixes. - The AS announces 512 IPv4 addresses across 2 prefixes with 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.
Notable
- The RDAP registrants for both prefixes are
Hearst Corporation, which aligns with the announcer's identity as a subsidiary of the same parent company. - The operator was formerly known as Hearst-Argyle Television, Inc., formed from the merger of Hearst Corporation's broadcasting properties and Argyle Television Inc.
- The inventory consists of two /24 blocks, 167.173.45.0/24 and 167.173.237.0/24, with no IPv6 prefixes announced.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36787- Registry name
- WMTW-TV-PORTLAND
- Registrant
- Hearst-Argyle Television, Inc.
- Abuse contact
- HTS-ARIN-Admin@hearst.com
- Registered
- 2006-04-26
- Last changed
- 2006-04-26
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS36787
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS36787
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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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