Autonomous system
AS12941 INTERSAAR-AS
Residential RIPE Cable/DSL/ISP
Summary
intersaar
isp telecom business
Nine reverse names across five different domains, one of them still spelled in capitals.
What it's used for
- A German regional internet provider. 12,032 addresses across seven IPv4 prefixes, three IPv6 prefixes, and 118 observed BGP neighbours.
Notable
- Netnames span four holders:
DE-INTERSAAR-20000112and two 2015 blocks,DE-HG-20150615for an IT services firm,SAARNETfor a registered association, andHANDSHAKE-DEfor another. - The registry lookup for
192.109.53.0/24failed, so nothing here describes that block's record. - Nine of eighteen sampled addresses returned names across five domains, including
ip-213-135-8-0.intersaar.de,dial-213-135-23-254.digitalab.de,hg-dmz2.hgcloud.de,subnet-4.saar.deandpluto.dialin.Saar.DE.
Interesting
- Two of the netnames belong to
e.V.associations, the German legal form for a non-profit club. Regional internet in Germany grew partly out of hobbyist associations that registered their own address space in the 1990s, and when those groups faded their blocks were absorbed by whichever local provider was still standing. The associations remain the registered holders. pluto.dialin.Saar.DEis the oldest thing in the record. Uppercase domain names were normal when DNS was young, dial-up access is thirty years gone, and naming machines after planets was the house style of an entire era of system administration. It still answers.- Even the provider's own blocks use two incompatible reverse formats,
ip-213-135-8-0and213-135-15-255. The two run on the same /19. - 118 neighbours from a provider serving one German region, which is what a dense national exchange fabric does to peering counts.
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 5 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.225 |
| DE-CIX Dusseldorf | Düsseldorf, Germany | 185.1.170.182 |
| DE-CIX Munich | Munich, Germany | 185.1.208.182 |
| Local Internet Exchange Frankfurt | Frankfurt, Germany | 185.1.166.35 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.171 |
Transit providers
23 upstream, 7 downstream and 43 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 12.03K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 10 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS12941- Registry name
- INTERSAAR-AS
- Registrant
- INTERSAAR-MNT
- Abuse contact
- registry@intersaar.de
- Registered
- 2001-10-20
- Last changed
- 2026-09-16
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- intersaar
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
RIPE::AS-INTERSAAR- Present at
- 20 exchanges
- Facilities
- 3 facilities
- Website
- https://www.intersaar.de/
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
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 10 authorising AS12941
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 11 naming AS12941
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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