asn.dev

Autonomous system

AS57137 SIEVERS-SNC

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 5 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Sievers-SNC

Germany · AI-generated

business corporate germany

SIEVERS-SNC is operated by Sievers-SNC Beteiligungs GmbH.

What it's used for

  • The address space is registered under the netname DE-SIEVERS-SNC-20190716 with registrant SIEVERS-SNC Beteiligungs GmbH.
  • The AS announces 1024 IPv4 addresses across 1 prefix and 4 IPv6 prefixes, with 4 observed neighbours.
  • This inventory size and neighbour count indicate an internal corporate estate rather than a public access or transit network.

Notable

  • The RDAP registrant SIEVERS-SNC Beteiligungs GmbH matches the AS holder.
  • The address inventory consists of a single IPv4 block and four IPv6 prefixes, consistent with a segmented corporate network.

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

4 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS61955ColocationIX GmbH232
AS42184TKRZ Stadtwerke GmbH95
AS3356Level 3 Parent, LLC60
AS31055Consultix GmbH38

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 1.02K addresses IPv6 5 prefixes

CountryNamePrefixes
DEGermany6

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57137
Registry name
sievers-snc
Registrant
mnt-de-sievers-snc-1
Abuse contact
abuse@sievers-group.com
Registered
2019-07-26
Last changed
2026-09-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
9 authorising AS57137
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
12 naming AS57137

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 1,773 prefixes, as published 2026-10-13. 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