asn.dev

Autonomous system

AS59452 ZIS-AS Customized InformSystems Ltd

Unclassified RIPE

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

Summary

Customized InformSystems Ltd

Russian Federation · AI-generated

business russia small

The AS handle ZIS-AS is held by Customized InformSystems Ltd.

What it's used for

  • The space carries a single IPv4 block, 91.241.45.0/24, registered under the netname ZIS-NET.
  • The inventory consists of 256 IPv4 addresses across 1 prefix, with 0 IPv6 prefixes announced.
  • With only 1 observed neighbour, the network operates as a small, isolated endpoint rather than a transit or large access provider.

Notable

  • The RDAP registrant Customized InformSystems Ltd matches the registry holder and the AS name ZIS-AS.
  • The address inventory is minimal, comprising a single /24 block in the Russian Federation.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS49063Data Storage Center JSC63

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 0 prefixes

CountryNamePrefixes
RURussian Federation1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS59452
Registry name
ZIS-AS
Registrant
MNT-ZIS
Abuse contact
sysadmins@custis.ru
Registered
2012-07-13
Last changed
2019-04-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS59452
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS59452

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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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