Autonomous system
AS6072 UNISYS-AS-C - Unisys Corporation
Unclassified ARIN
Summary
Unisys Corporation
enterprise legacy
UNISYS-AS-C is a second autonomous system belonging to Unisys Corporation, the American IT services and enterprise-computing firm, alongside AS6071.
What it's used for
- Part of Unisys's own corporate routing and the infrastructure behind its managed-services and outsourcing contracts.
- It originates a small amount of Unisys-registered address space; the bulk of the company's IPv4 footprint is announced from its sibling AS.
Notable
- Enterprise addressing — corporate offices, data centres and hosted client systems — rather than an ISP or hosting product sold to the public.
- The
-Cand-Esuffixes distinguish the two Unisys autonomous systems; they are routing divisions of one company, not separate business units with different purposes.
Interesting
- ARIN registered AS6071 and AS6072 to Unisys on the same day in November 1995, part of a sequential run of genuine mid-1990s allocations.
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 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 1.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6072- Registry name
- UNISYS-AS-C
- Registrant
- Unisys Corporation
- Abuse contact
- hostmaster@unisys.com
- Registered
- 1995-11-02
- Last changed
- 2012-06-01
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 0 authorising AS6072
- ASPA
- no ASPA record
- IRR
- 83% registered · 5 of 6 announcements 1 other origin
- Route objects
- 29 naming AS6072
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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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