Autonomous system
AS36490 OWENSCORNING - Owens-Corning
Unclassified ARIN
Summary
Owens Corning
business corporate manufacturing us
OWENSCORNING is the autonomous system for Owens Corning, a major US building products manufacturer.
What it's used for
- The address space is registered under the netname
OWENS-CORNINGfor both announced IPv4 blocks, indicating a dedicated corporate estate. - With 768 IPv4 addresses across 2 prefixes and only 2 observed neighbours, the low neighbour-to-address ratio suggests an internal corporate network rather than a transit or access provider.
Notable
- Registrants for both prefixes match the AS holder, identified as "Owens-Corning; Internet IP Technical contact".
- The company was formerly known as Owens-Corning Fiberglass Corporation, a history noted in secondary sources regarding its establishment and asbestos exposure litigation.
- The inventory consists of two small IPv4 blocks (205.204.4.0/23 and 205.204.1.0/24) and a single IPv6 prefix (2620:103:8000::/45), typical of a large enterprise managing its own IP space.
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 2026-11-04, 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 · 768 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36490- Registry name
- OWENSCORNING
- Registrant
- Owens-Corning
- Abuse contact
- ip-tech@owenscorning.com
- Registered
- 2006-01-18
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS36490
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 6 naming AS36490
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: 453 networks and 1,853 prefixes, as published 2026-11-05. 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