asn.dev

Autonomous system

AS35236 AS35236 - UVT Internet s.r.o.

Unclassified RIPE

IPv4 addresses 10.50K 11 prefixes
IPv6 prefixes 36 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 1 recorded by PCH
Upstreams 12 7 downstream
Flagged prefixes 0 none

Summary

UVT Internet s.r.o.

Czechia · AI-generated

isp czech wireless business

AS35236 is operated by UVT Internet s.r.o., a Czech telecommunications provider.

What it's used for

  • The address space carries netnames such as CZ-UVT-20110804 and CZ-UVT-20100210, indicating direct ownership by the operator.
  • With 10,496 IPv4 addresses and 36 IPv6 prefixes announced against 37 observed neighbours, the ratio suggests a regional access or business network rather than a major transit provider.

Notable

  • Registrants for the largest prefixes (31.170.176.0/21, 109.205.72.0/21, 188.92.96.0/21) align with the announcer, listing UVT Internet s.r.o. and UVT Intenet - NOC.
  • Smaller prefixes like 91.241.8.0/23 and 185.205.136.0/23 are registered to third parties including Algotech a.s. and Cluster Design s.r.o., suggesting leased space or customer allocations.
  • The inventory consists of 11 IPv4 prefixes, with the largest being /21 blocks, indicating a moderately sized regional footprint.

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
NIX.CZ - Neutral Internet eXchange for the Czech RepublicPrague, Czech Republic91.210.16.139

Transit providers

12 upstream, 7 downstream and 34 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3257GTT Communications Inc.423
AS47232ISP Alliance a.s.142
AS6939Hurricane Electric LLC138
AS199803ComSource s.r.o.118
AS1299Arelion Sweden AB75
AS24482SG.GS17
AS29504Freenet Liberec, z.s.17
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH13

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 11 prefixes · 10.50K addresses IPv6 36 prefixes

CountryNamePrefixes
CZCzechia47

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS35236
Registry name
AS35236
Registrant
MNT-UVT
Abuse contact
abuse@uvtnet.cz
Registered
2005-06-29
Last changed
2025-05-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 19 valid, 0 with no ROA
ROAs
18 authorising AS35236
ASPA
no ASPA record
IRR
100% registered · 19 of 19 announcements
Route objects
57 naming AS35236

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: 432 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