asn.dev

Autonomous system

AS35393 EURO-WEB-AS

Hosting RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly FR
Exchanges 2 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

CTS Computers and Telecommunications Systems

France · AI-generated

business france small

The AS handle EURO-WEB-AS is held by CTS Computers and Telecommunications Systems SAS.

What it's used for

  • The space carries a single /24 prefix, 185.31.3.0/24, registered under the netname FR-ALFAINFO-20130718 with registrant CEGI Alfa.
  • With 256 IPv4 addresses announced against only 1 observed neighbour, the ratio suggests a small, self-contained business or internal network rather than a transit or large access provider.

Notable

  • The RDAP registrant CEGI Alfa differs from the AS holder CTS Computers and Telecommunications Systems SAS, indicating the address space may be leased or managed by a separate entity.
  • The address inventory consists of a single contiguous /24 block with no IPv6 prefixes, reflecting a minimal and static 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 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
France-IX ParisParis, France37.49.236.11
Equinix Internet Exchange ParisParis, France195.42.144.25

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS34177Celeste SAS59

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
FRFrance1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS35393
Registry name
EURO-WEB-AS
Registrant
FR-EURO-WEB-MNT
Abuse contact
abuse@magic.fr
Registered
2005-07-29
Last changed
2026-09-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
31 authorising AS35393
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
106 naming AS35393

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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