asn.dev

Autonomous system

AS6873 LIBRUM-AS

Hosting RIPE

IPv4 addresses 768 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Librum IT

Poland · AI-generated

hosting legacy

LIBRUM-AS is operated by Librum Sp. z o.o., trading as Librum IT, an IT services and application-hosting company based in Jelenia Góra in south-western Poland, active since 2004.

What it's used for

  • Application hosting and IT outsourcing for small and medium-sized businesses, run from the company's own datacentre.
  • Hosting for B2B commerce platforms and online retail systems built on the company's software.

Notable

  • All three announced /24s carry reverse DNS under librumit.pl, confirming the address space is used for the company's own hosting platform rather than handed out to a separate operator.
  • The prefixes come from a mix of RIPE blocks and are maintained alongside Polish carrier maintainers, which is typical of a small hosting provider that took addresses with it across upstream changes.

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 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12741Netia SA95
AS198709Jacek Jarosz trading as Info Serwis50
AS5617Orange Polska Spolka Akcyjna25
AS12912T-Mobile Polska S.A.20

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 3 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
PLPoland3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS6873
Registry name
LIBRUM-AS
Registrant
NETIA-MNT
Abuse contact
abuse@inetia.pl
Registered
2009-07-27
Last changed
2020-03-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
33% valid · 1 valid, 2 with no ROA
ROAs
1 authorising AS6873
ASPA
no ASPA record
IRR
67% registered · 2 of 3 announcements
Route objects
2 naming AS6873

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: 442 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