asn.dev

Autonomous system

AS34891 UM-WARSZAWA-AS pl. Bankowy 35

Unclassified RIPE

IPv4 addresses 768 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 1 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

Urzad Miasta Stolecznego Warszawa

Poland · AI-generated

government municipal network

UM-WARSZAWA-AS is operated by Urzad Miasta Stolecznego Warszawa, the administrative body of the city of Warsaw.

What it's used for

  • The address space carries municipal infrastructure and public access points, evidenced by reverse DNS entries such as rev-128.hostspot.warszawa.pl and rev-064.um.warszawa.pl.
  • The AS announces 768 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 13 observed neighbours, a ratio consistent with a small-scale internal or municipal network rather than a large transit provider.

Notable

  • Registrants for both announced prefixes are aligned with the city administration, with Urzad Miasta Stolecznego Warszawa listed as the primary registrant for 91.237.138.0/23 and 194.30.179.0/24.
  • The address inventory is compact, consisting of a /23 and a /24 block, indicating a focused allocation for specific city services rather than broad residential or commercial distribution.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Equinix Internet Exchange WarsawWarsaw, Poland195.182.219.128

Transit providers

5 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29314VECTRA S.A.214
AS6939Hurricane Electric LLC39
AS24482SG.GS3
AS29632Netassist International EOOD2
AS201054Stowarzyszenie e-Poludnie1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 · 768 addresses IPv6 1 prefixes

CountryNamePrefixes
PLPoland3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS34891
Registry name
UM-Warszawa-AS
Registrant
ATMAN-MNT
Abuse contact
abuse@um.warszawa.pl
Registered
2005-04-25
Last changed
2023-11-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS34891
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
12 naming AS34891

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 1,778 prefixes, as published 2026-10-20. 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