asn.dev

Autonomous system

AS31673 UNISERVER-AS

Hosting RIPE NSP

IPv4 addresses 56.58K 35 prefixes
IPv6 prefixes 12 counted as prefixes, not addresses
Countries 1 mostly NL
Exchanges 3 recorded by PCH
Upstreams 24 0 downstream
Flagged prefixes 0 none

Summary

Uniserver Internet B.V.

Netherlands · AI-generated

hosting business netherlands

The AS handle UNISERVER-AS is held by Uniserver Internet B.V.

What it's used for

  • The address space carries hosting and business infrastructure, evidenced by netnames such as NL-DUTCHCLOUD and NL-UNISERVER, and reverse DNS entries like hosted.by.denit.net and hosted.at.uniserver.nl.
  • With 57088 IPv4 addresses announced across 36 prefixes and 112 observed neighbours, the ratio suggests a hosting or business network rather than a pure transit provider.

Notable

  • Registrants include both Uniserver Internet B.V. and Denit B.V., with netnames reflecting both Uniserver and DutchCloud branding, indicating a shared or merged operational history.
  • The address inventory is finely subdivided into multiple /20, /21, and /22 blocks, consistent with an internal corporate estate or multi-tenant hosting environment.

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 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
AMS-IX AmsterdamAmsterdam, Netherlands80.249.212.187
Neutral Internet ExchangeAmsterdam, Netherlands193.239.116.100
Neutral Internet Exchange 2Amsterdam, Netherlands185.1.122.147

Transit providers

24 upstream, 0 downstream and 37 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20562Broadband Hosting B.V.461
AS2914NTT America, Inc.448
AS174Cogent Communications, LLC409
AS6939Hurricane Electric LLC319
AS24785Broadband Hosting B.V.188
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)46
AS24482SG.GS46
AS37721Virtual Technologies & Solutions46

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 35 prefixes · 56.58K addresses IPv6 12 prefixes

CountryNamePrefixes
NLNetherlands47

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31673
Registry name
UNISERVER-AS
Registrant
Uniserver Internet B.V.
Abuse contact
abuse@uniserver.nl
Registered
2004-07-07
Last changed
2023-02-17
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Uniserver Internet BV
Network type
NSP
Scope
Europe
Traffic ratio
Balanced
Peering policy
Restrictive
IRR as-set
RIPE::AS-UNISERVER
Present at
3 exchanges
Facilities
4 facilities
Website
http://www.uniserver.nl/

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 · 46 valid, 0 with no ROA
ROAs
47 authorising AS31673
ASPA
no ASPA record
IRR
100% registered · 46 of 46 announcements
Route objects
50 naming AS31673

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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 1,768 prefixes, as published 2026-10-12. 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