asn.dev

Autonomous system

AS12853 GENDORF-

Unclassified APNIC

IPv4 addresses 11.26K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

InfraServ Gendorf

Germany · AI-generated

enterprise infrastructure business

The network of a chemical park, under an AS handle that was cut off mid-word.

What it's used for

  • The site network of a German chemical industrial park operator. 11,264 addresses across three IPv4 prefixes, one IPv6 prefix, and three observed BGP neighbours.

Notable

  • The inventory is 212.68.96.0/19, 79.98.224.0/21 and 185.251.4.0/22, plus 2001:940::/32.
  • Netnames are DE-GENDORF-991029, DE-GENDORF-20071109 and DE-GENDORF-20180321.
  • The AS handle reads GENDORF-, ending in a hyphen.
  • Nine addresses were sampled and none returned a name.

Interesting

  • The handle stops mid-word. Something truncated GENDORF-DE at a field boundary and the remainder was never restored, so a trailing hyphen has been this network's public name for years. Registry fields have length limits and no validation for meaning; whatever survives the cut is what everyone sees.
  • 991029 is a two-digit year from 29 October 1999. Another holder in this range carries 19991029 — the same day, four digits. The two formats were not successive conventions; they coexisted, and the choice belonged to whoever filled in the form.
  • A chemical park is a shared site where several companies operate plants, and one operator runs the roads, power and network for all of them. 11,264 addresses and three neighbours is an industrial campus rather than a business network: the traffic that matters stays inside the fence, and the internet connection is a utility like any other on site.
  • The holder's own name contains the phrase trading as followed by a second, longer company name. Legal identity and operating identity are different things, and the registry records both because the form has room for exactly 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

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

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS42652inexio Informationstechnologie und Telekommunikation Gmbh121
AS3320Deutsche Telekom AG89
AS3209Vodafone GmbH3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 3 prefixes · 11.26K addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany4

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS12853
Registry name
GENDORF-DE
Registrant
GENDORF-MNT
Abuse contact
ripe@infraserv.gendorf.de
Registered
2002-02-25
Last changed
2025-05-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS12853
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS12853

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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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