Autonomous system
AS15698 ENBW-AG
Unclassified RIPE
Summary
EnBW Energie Baden-Wuerttemberg
enterprise infrastructure business
One IPv4 block and sixteen IPv6 ones, announced as a staircase that doubles at every step.
What it's used for
- An energy utility's network. One IPv4 prefix and sixteen IPv6 prefixes announced from Germany, two thousand and forty-eight addresses, across two observed BGP neighbours.
Notable
- The IPv6 announcements start at a
/47and step up through/46,/45,/44,/43,/42,/41,/39, each one exactly twice the size of the last, with a/40alongside them. - That is what covering a range whose boundaries do not fall on a single block looks like: the range gets tiled by the largest piece that fits at each point, and the result is a doubling sequence.
- The whole IPv4 holding is a single
/21, registered under one netname with the company and an abuse role. - There are eight times as many IPv6 routes as IPv4 addresses would suggest, on a network with two upstreams.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- A staircase is not a mistake, it is arithmetic. Every network that announces part of an allocation produces one, and the number of steps is fixed by where the range starts and stops rather than by anything the operator chose.
- A utility with two thousand IPv4 addresses and a large IPv6 allocation is a corporate network that arrived late enough to be given room in the newer family and early enough to be starved in the old one.
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 1 prefixes · 2.05K addresses IPv6 16 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 17 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15698- Registry name
- ENBW-AG
- Registrant
- de-enbwenergie-1-mnt
- Abuse contact
- abuse@enbw.com
- Registered
- 2002-08-29
- Last changed
- 2024-06-21
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS15698
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS15698
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 1,782 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