Autonomous system
AS6 BULL-HN
Unclassified ARIN
Summary
Bull HN Information Systems
enterprise legacy
An early corporate allocation (BULL-HN) belonging to Bull HN Information Systems, the Honeywell Bull computing company.
What it's used for
- Corporate networking for the company.
Notable
- A single-digit AS number reflects an allocation from the internet's earliest years. Bull HN traces to the Honeywell mainframe business, one of the pioneer computer makers.
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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 44 prefixes · 124K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 45 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6- Registry name
- BULL-HN
- Registrant
- ATOS IT Solutions and Services, Inc.
- Abuse contact
- charlie.molnar@bull.com
- Registered
- 1984-02-02
- Last changed
- 2021-01-21
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Bull HN Information Systems
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 32 with no ROA
- ROAs
- 0 authorising AS6
- ASPA
- no ASPA record
- IRR
- 94% registered · 30 of 32 announcements 2 other origin
- Route objects
- 30 naming AS6
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 1,781 prefixes, as published 2026-10-16. 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