asn.dev

Autonomous system

AS61110 SITMP

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 4 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Sprava informacnich technologii mesta Plzne

Czechia · AI-generated

municipal government it czech

SITMP is operated by Sprava informacnich technologii mesta Plzne, p.o.

What it's used for

  • The address space carries municipal IT infrastructure, evidenced by the reverse DNS record wwwrs.sitmp.cz and the netname CZ-SITMP-20160524.
  • The AS announces 1024 IPv4 addresses and 4 IPv6 prefixes, with only 2 observed neighbours, indicating a small, self-contained network rather than a transit or large access provider.
  • Traffic from this AS consists of internal city government services and web endpoints for the city of Plzeň.

Notable

  • The registrant Sprava informacnich technologii mesta Plzne, p.o. matches the AS holder exactly.
  • The address inventory consists of a single IPv4 block, 185.153.192.0/22, and four IPv6 prefixes, reflecting a compact municipal estate.

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 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16019Vodafone Czech Republic a.s.179
AS2852CESNET z.s.p.o.106

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 1.02K addresses IPv6 4 prefixes

CountryNamePrefixes
CZCzechia5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS61110
Registry name
SITMP
Registrant
cz-sitmp-1-mnt
Abuse contact
abuse@sitmp.cz
Registered
2013-02-13
Last changed
2021-05-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
5 authorising AS61110
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
14 naming AS61110

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 1,773 prefixes, as published 2026-10-13. 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