Autonomous system
AS27580 ENGINEERING-ASN1
Unclassified ARIN
Summary
ConvergeOne Holdings
business corporate us
The AS handle ENGINEERING-ASN1 is held by ConvergeOne Holdings, Inc.
What it's used for
- The address space is registered under the netname
C1ENGINEERING-V4, indicating a corporate engineering or internal infrastructure estate. - The AS announces 1024 IPv4 addresses across 1 prefix and 3 IPv6 prefixes, with 4 observed neighbours. This low neighbour count relative to the address inventory suggests an internal corporate network rather than a transit or access provider.
Notable
- The RDAP registrant
CONVERGEONE HOLDINGS, INC.matches the registry holder, confirming consistent ownership of the announced space. - The inventory consists of a single IPv4 block (
104.153.152.0/22) and three IPv6 prefixes, representing a compact, self-contained address allocation typical of a private 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
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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS27580- Registry name
- ENGINEERING-ASN1
- Registrant
- CONVERGEONE HOLDINGS, INC.
- Abuse contact
- cvinje@onec1.com
- Registered
- 2018-08-13
- Last changed
- 2025-04-23
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 4 authorising AS27580
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 6 naming AS27580
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 1,771 prefixes, as published 2026-10-15. 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