asn.dev

Autonomous system

AS57821 NONATTACHED-AS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 1 recorded by PCH
Upstreams 7 87 downstream
Flagged prefixes 0 none

Summary

Nonattached Network

Germany · AI-generated

non-profit transit germany

NONATTACHED-AS is operated by Nonattached Network e.V.

What it's used for

  • The address space is registered under the netname ORG-NAN1-RIPE with registrants Nonattached Network NOC and Nonattached Network e.V.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix while maintaining 109 observed neighbours, a ratio that indicates a transit or peering role rather than an access network.
  • As a non-profit organization, the traffic consists of routed internet traffic facilitated through its peering relationships.

Notable

  • The RDAP registrants Nonattached Network NOC and Nonattached Network e.V. align with the AS holder.
  • The inventory consists of a single IPv4 prefix 193.160.39.0/24 and a single IPv6 prefix 2001:67c:26f4::/48.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
KleyReX Internet ExchangeFrankfurt, Germany193.189.82.169

Transit providers

7 upstream, 87 downstream and 149 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12586GHOSTnet GmbH46
AS6939Hurricane Electric LLC43
AS24482SG.GS2
AS25091IP-Max SA1
AS34800Securebit AG1
AS202365Omer GOLGELI1
AS212508Lowhosting services of Davide Gennari1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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
AS57821
Registry name
NONATTACHED-AS
Registrant
NONATTACHED-MNT
Abuse contact
noc@nonattached.net
Registered
2012-02-16
Last changed
2024-11-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS57821
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS57821

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