Autonomous system
AS57537 NETDSIGN-AS
Unclassified RIPE
Summary
Net-D-Sign GmbH
business it germany
NETDSIGN-AS is operated by Net-D-Sign GmbH.
What it's used for
- The address space carries corporate IT infrastructure, evidenced by netnames
DE-NET-D-SIGN-20100511andDE-NET-D-SIGN-20160520registered to Net-D-Sign GmbH. - The AS announces 9,216 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 109 observed neighbours; this ratio of modest address space against a high neighbour count indicates a transit or interconnection role rather than a large-scale access network.
- As an IT and internet service provider based in Garching, Munich, and Nuremberg, the traffic consists of business connectivity, IT services, and data processing endpoints for corporate clients.
Notable
- Registrants for both announced IPv4 prefixes are Net-D-Sign GmbH, matching the AS holder.
- The address inventory is compact, consisting of a /19 and a /22 block, consistent with an internal corporate estate or regional service provider rather than a national backbone.
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 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.196.145 |
| DE-CIX Munich | Munich, Germany | 185.1.208.158 |
| Megaport Dusseldorf IX | Düsseldorf, Germany | 194.146.118.169 |
| Megaport Munich IX | Munich, Germany | 194.59.190.76 |
Transit providers
18 upstream, 0 downstream and 26 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 2026-10-15, 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 · 9.22K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS57537- Registry name
- NETDSIGN-AS
- Registrant
- NET-D-SIGN-MNT
- Abuse contact
- abuse@net-d-sign.de
- Registered
- 2012-04-12
- Last changed
- 2022-03-07
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS57537
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 3 naming AS57537
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