asn.dev

Autonomous system

AS20897 ISD-AS

Unclassified RIPE

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly UA
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

ISD

Ukraine · AI-generated

business ukraine ipv4

ISD-AS is operated by Limited company with foreign investments ISD.

What it's used for

  • The address space is registered under netnames ISD-UA and ISDDN-NET, both held by the same limited company.
  • The AS announces 1536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with 4 observed neighbours, indicating a small-scale business or internal corporate network.

Notable

  • Registrants for both announced IPv4 prefixes match the AS holder, confirming consistent ownership.
  • The inventory consists of two distinct IPv4 blocks: 193.93.100.0/22 and 193.108.162.0/23, alongside a single IPv6 /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

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 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6702Science Production Company "Trifle" Ltd.195
AS3255LLC EKSINTECH104
AS1820WNET TELECOM USA Corp.61
AS3326PRIVATE JOINT STOCK COMPANY "DATAGROUP"61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 2 prefixes · 1.54K addresses IPv6 1 prefixes

CountryNamePrefixes
UAUkraine3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS20897
Registry name
ISD-AS
Registrant
ISD-MNT
Abuse contact
abuse@isd.dp.ua
Registered
2002-06-27
Last changed
2022-12-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
7 authorising AS20897
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
8 naming AS20897

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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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