asn.dev

Autonomous system

AS12350 VTX-NETWORK

Unclassified RIPE

IPv4 addresses 310K 29 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 5 recorded by PCH
Upstreams 2 2 downstream
Flagged prefixes 0 none

Summary

VTX Services

Switzerland · AI-generated

isp eyeball business legacy

One of Switzerland's long-standing independent providers, selling access and business connectivity nationally.

What it's used for

  • Residential and business internet across Switzerland. 310,016 addresses over 29 announced prefixes, with 21 observed BGP neighbours and two IPv6 /32s.

Notable

  • Two full /16s, 144.85.0.0/16 and 212.254.0.0/16, plus three /17s. For a network this size the inventory is unusually coarse — large blocks announced whole rather than split.
  • The netnames date almost every allocation: CH-VTX-960404, 960612, 960708, 961017, then 980218, 980422, 980522, 990330, 20000704 and 20010830. Four allocations in 1996 alone.

Interesting

  • The registrant field alternates between "VTX SA" and "VTX AG" across the blocks. Those are the same corporate form written in French and in German — Société Anonyme and Aktiengesellschaft — and a Swiss company operating in both language regions is legitimately both. The registry has simply recorded whichever name whoever filed the request was using that day.
  • Four allocations inside a single year is the signature of a provider growing faster than its forecasts. Each request is a separate trip to the registry with a fresh justification of need, and doing that four times over means the address plan was being outrun.

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 5 exchanges in 4 countries, largest first.

ExchangeLocationTheir address
LINX LON1London, United Kingdom195.66.225.129
AMS-IX AmsterdamAmsterdam, Netherlands80.249.209.24
SwissIXZurich, Switzerland91.206.52.77
Equinix Internet Exchange ParisParis, France195.42.144.50
CERN IXP / Equinix Internet Exchange GenevaGeneva, Switzerland192.65.185.157

Transit providers

2 upstream, 2 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS34177Celeste SAS1,733
AS30781Free Pro SAS1

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 29 prefixes · 310K addresses IPv6 2 prefixes

CountryNamePrefixes
CHSwitzerland31

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12350
Registry name
VTX-NETWORK
Registrant
VTX Services SA
Abuse contact
abuse@vtx.ch
Registered
2002-09-11
Last changed
2026-09-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
97% valid · 31 valid, 0 with no ROA 1 RPKI-invalid
ROAs
31 authorising AS12350
ASPA
1 declared providers
IRR
97% registered · 31 of 32 announcements 1 other origin
Route objects
30 naming AS12350

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 1,772 prefixes, as published 2026-10-15. 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