asn.dev

Autonomous system

AS12502 NEPUSTILNET-AS01 Rathausstr. 3

Residential RIPE Cable/DSL/ISP

IPv4 addresses 9.98K 6 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 2 recorded by PCH
Upstreams 4 7 downstream
Flagged prefixes 0 none

Summary

Dr.-Ing. Nepustil & Co.

Germany · AI-generated

isp business hosting

A small German ISP whose six blocks answer to four different holders, and whose AS name ends in a street address.

What it's used for

  • Business internet access and hosting. 9,984 addresses in six IPv4 prefixes, two IPv6 prefixes, and 12 observed BGP neighbours.

Notable

  • The AS handle is NEPUSTILNET-AS01 Rathausstr. 3 — the network's name followed by where it lives.
  • Only two blocks are registered to Nepustil itself, as NEPUSTIL and DR-NEPUS-NET. The others belong to Bernhard Zintgraf (BEZITECH-PI-NET), Kurt Jaeger (OPSEC-LAN) and KONSEC GmbH.
  • Reverse names track the registrant rather than the announcer: pi23-1-128.bezitech.de, fw.opsec.eu and kreuzeiche128.nepustil.net all sit under this one AS.
  • One address answers pi23-1-broadcast.bezitech.de, and another testbrick.Nepustil.NET with its capitals intact.
  • The IPv6 announcements are a /32 and a /48.

Interesting

  • Six prefixes, four registrants and three reverse-DNS domains raises a question the records answer only halfway: whether these are customers whose own space is announced for them, or smaller networks absorbed over time. Either way the registry preserved each original holder's name instead of overwriting it.
  • fw.opsec.eu and pi23-1-broadcast are hand-written names. A generated reverse zone numbers every address alike; these describe what the machine is, which only happens when somebody expects to read the name later.

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 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
KleyReX Internet ExchangeFrankfurt, Germany193.189.82.64
Stuttgarter Internet ExchangeStuttgart, Germany193.138.31.7

Transit providers

4 upstream, 7 downstream and 17 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5405Inter.link GmbH204
AS1299Arelion Sweden AB188
AS33843Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik42
AS33891Core-Backbone GmbH6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 6 prefixes · 9.98K addresses IPv6 2 prefixes

CountryNamePrefixes
DEGermany8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12502
Registry name
NEPUSTILNET-AS01
Registrant
NEPUSTIL-NET-MNT
Abuse contact
abuse@nepustil.net
Registered
1970-01-01
Last changed
2024-12-16
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Nepustil AS12502
Also known as
Nepustil
Network type
Cable/DSL/ISP
Scope
Regional
Traffic ratio
Balanced
Peering policy
Open
IRR as-set
AS-NEPUSTIL
Present at
2 exchanges
Facilities
4 facilities
Website
https://nepustil.net/

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 · 8 valid, 0 with no ROA
ROAs
8 authorising AS12502
ASPA
3 declared providers
IRR
100% registered · 8 of 8 announcements
Route objects
8 naming AS12502

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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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