asn.dev

Autonomous system

AS43137 ATC_LLC-

Unclassified RIPE NCC

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly UA
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

ATC LLC

Ukraine · AI-generated

business ukraine ipv4

The AS handle ATC_LLC- is held by ATC LLC.

What it's used for

  • The address space is registered under the netname ORG-AL677-RIPE with registrant ATC LLC.
  • The network announces 512 IPv4 addresses across 1 prefix (91.194.88.0/23) and has 2 observed routing neighbours.
  • The low neighbour count relative to the address block suggests a limited transit or peering footprint, typical of a small business or internal corporate network rather than a large access provider.

Notable

  • The RDAP registrant ATC LLC matches the registry holder ATC_LLC-UA.
  • The inventory consists of a single contiguous /23 block, indicating a simple, non-subdivided address allocation.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3326PRIVATE JOINT STOCK COMPANY "DATAGROUP"140
AS35320Eurotranstelecom Ltd37

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
UAUkraine1

Registry

Allocation record

RIPE NCC · via Atlas (registry data)
Registry
RIPE NCC
Registered
2007-06-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS43137
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS43137

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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