asn.dev

Autonomous system

AS12857 TDS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 7 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 1 recorded by PCH
Upstreams 13 1 downstream
Flagged prefixes 0 none

Summary

TDS Manage Now

Germany · AI-generated

hosting business enterprise

One /24 in IPv4, a six-rung ladder in IPv6, 96 neighbours, and a netname dated 1993.

What it's used for

  • A German managed-IT and hosting operator. 256 addresses in a single IPv4 prefix, seven IPv6 prefixes, and 96 observed BGP neighbours.

Notable

  • The whole IPv4 inventory is 194.147.133.0/24, netname DE-MANAGE-NOW-19930901.
  • IPv6 is announced as 2a00:b400::/30, 2a00:b404::/33, 2a00:b404:8000::/34, 2a00:b404:c000::/35, 2a00:b404:f000::/36 and 2a00:b405::/32.
  • The AS handle is TDS.
  • Three addresses were sampled and none returned a name.

Interesting

  • The IPv6 announcements are a halving ladder: a /33, then a /34 starting where it ends, then a /35, then a /36, each covering half of what remains. Every rung except the /30 and /32 sits on an odd boundary, so none of them delegates its reverse zone in one piece. Somebody carved a block by repeatedly splitting it in two and announced every piece separately.
  • 96 neighbours on 256 IPv4 addresses is one of the most lopsided ratios in this range. The address count measures what a network hosts; the neighbour count measures who it talks to, and the two have almost nothing to do with each other.
  • 19930901 is a four-digit year from September 1993 — six years before the two-digit netnames elsewhere in this range, and one holder here has four-digit dates running back to 1989. The long form was never a later replacement for the short one. Both were available throughout, and netname dates record who filed rather than when the convention stood.

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
DE-CIX FrankfurtFrankfurt, Germany80.81.192.127

Transit providers

13 upstream, 1 downstream and 17 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS21473PFALZKOM GmbH43
AS34309Link11 GmbH30
AS6939Hurricane Electric LLC8
AS34549meerfarbig GmbH & Co. KG4
AS6797GlobalConnect AB1
AS12779IT.Gate S.p.A.1
AS20485Joint Stock Company TransTeleCom1
AS24482SG.GS1

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

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 7 prefixes

CountryNamePrefixes
DEGermany8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12857
Registry name
TDS
Registrant
de-manage-now-1-mnt
Abuse contact
nwsbetrieb@manage-now.de
Registered
1970-01-01
Last changed
2026-01-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Manage Now Transit
Scope
Europe
Traffic ratio
Balanced
Peering policy
Selective
IRR as-set
AS-FTDS-TRANSIT
Present at
1 exchanges
Facilities
3 facilities
Website
https://www.manage-now.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

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS12857
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS12857

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

Cross-check