asn.dev

Autonomous system

AS209623 GASCADE-BIZ GASCADE Gastransport GmbH

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

GASCADE Gastransport GmbH

Germany · AI-generated

business gas infrastructure germany

GASCADE-BIZ is operated by GASCADE Gastransport GmbH.

What it's used for

  • The address space carries corporate infrastructure for a gas transmission operator, as indicated by the netname GASCADE-BIZ-1-NET-V4 and registrant GASCADE Gastransport GmbH.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.
  • Traffic from this AS consists of internal corporate communications, SCADA systems, and administrative endpoints for Germany's natural gas pipeline network.

Notable

  • The registrant GASCADE Gastransport GmbH matches the AS holder, confirming direct ownership of the address space.
  • GASCADE is one of Germany's leading independent gas transmission system operators, managing a high-pressure natural gas pipeline system spanning over 2,300 kilometers in central Europe.
  • The inventory consists of a single /24 IPv4 block and a /48 IPv6 prefix, typical for a specialized industrial utility with limited public-facing internet requirements.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3320Deutsche Telekom AG64
AS3209Vodafone GmbH27

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209623
Registry name
GASCADE-BIZ
Registrant
mnt-de-gascade-1
Abuse contact
ripe@gascade.de
Registered
2023-04-03
Last changed
2024-12-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS209623
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS209623

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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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

Cross-check