Autonomous system
AS12512 CBXNET
Unclassified RIPE
Summary
CBXNET
isp business hosting
A Berlin provider whose registry records still name the company it used to be, and which has two machines both called gateway.
What it's used for
- Business internet access and hosting in Berlin. 16,384 addresses in two IPv4
/19s, one IPv6/32, and 14 observed BGP neighbours.
Notable
- Both blocks are netnamed for a different company:
DE-COMBOX-990624andDE-COMBOX-20010209, while the registrant reads CBXNET GmbH. - The registry contact is
COMBOX POP BERLIN, and the operational oneCBXNET POP BERLIN— the same role recorded twice under both names. - Two separate addresses in the sample answer to the identical name,
gateway.cbxnet.de. - The netnames are dated 1999 and 2001, the first in
YYMMDDand the second inYYYYMMDD.
Interesting
CBXis whatCOMBOXcontracts to, so the rename kept the sound and dropped the middle. The registry preserved the long form because a netname is fixed when the block is issued; the shortened version only appears in the fields that get updated.- Two addresses sharing one reverse name is legal and routine — a PTR is a property of an address, not a claim to be unique — but it means the name identifies a role rather than a machine. Whichever box is the gateway answers to it.
POPis a point of presence, and puttingBERLINin the contact name for both blocks says this is a provider with one city and no ambition to pretend otherwise.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Berlin Commercial Internet Exchange | Berlin, Germany | 193.178.185.61 |
Transit providers
7 upstream, 0 downstream and 10 adjacent networks observed; most-used upstreams first.
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 2 prefixes · 16.38K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS12512- Registry name
- CBXNET
- Registrant
- COMBOX-MNT
- Abuse contact
- abuse@cbxnet.de
- Registered
- 2002-08-16
- Last changed
- 2022-05-27
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS12512
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 5 naming AS12512
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 1,772 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