asn.dev

Autonomous system

AS31347 PORTAONE-AS

Unclassified RIPE

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

Summary

Porta One

Ukraine · AI-generated

business isp ukraine

The AS handle PORTAONE-AS is held by Porta One-Chernihiv Ltd.

What it's used for

  • The address space carries internal corporate and service infrastructure, evidenced by reverse DNS entries such as plsingle.portaone.com, webdev-vm.portaone.com, and lightsip1.portaone.com.
  • The network announces 256 IPv4 addresses within a single /24 prefix (193.28.87.0/24) and maintains only 1 observed neighbour, indicating a small, self-contained access or business network rather than a transit provider.

Notable

  • The RDAP registrant Porta One-Chernihiv Ltd matches the AS holder, confirming consistent ownership of the netname PORTAONE-NET.
  • The address inventory consists of a single contiguous /24 block, representing a compact and unified corporate estate without fragmented or leased segments.

CLASSIFICATION - after the card, on its own final line, emit exactly:

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
AS41360NEOCOM Ltd.65

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-23, 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
UAUkraine1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31347
Registry name
PORTAONE-AS
Registrant
Porta One-Chernihiv Ltd
Abuse contact
abuse@portaone.com
Registered
2004-04-20
Last changed
2023-10-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS31347
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS31347

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 1,779 prefixes, as published 2026-10-24. 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