Autonomous system
AS40021 CONTABO-40021 - Contabo Inc.
Hosting ARIN Content
Summary
Contabo
hosting vps dedicated
The CONTABO-40021 network, run by Contabo Inc, the US arm of the German budget-hosting provider Contabo. Contabo sells low-cost VPS, VDS, and dedicated servers.
What it's used for
- Inexpensive virtual and dedicated servers, self-service, across US and global data centers.
Notable
- An IP here identifies Contabo as the host; the customer controls the server, so budget VPS ranges like this carry a mix of legit and abusive traffic and show up frequently in data-center IP lists.
- Contabo's main German operation announces separate ASNs; this one covers its US presence.
Interesting
- Contabo is a Munich-based provider popular for offering large amounts of RAM and storage per dollar relative to mainstream cloud VPS.
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 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 63 prefixes · 152K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 65 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS40021- Registry name
- CONTABO-40021
- Registrant
- Contabo Inc.
- Abuse contact
- abuse@contabo.de
- Registered
- 2023-05-16
- Last changed
- 2025-07-14
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Contabo USA
- Network type
- Content
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
RADB::AS40021:AS-CONE- Facilities
- 3 facilities
- Website
- https://contabo.com
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
- 83% valid · 82 valid, 17 with no ROA
- ROAs
- 81 authorising AS40021
- ASPA
- no ASPA record
- IRR
- 100% registered · 99 of 99 announcements
- Route objects
- 208 naming AS40021
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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