asn.dev

Autonomous system

AS202757 CASTLE-IT

Unclassified RIPE

IPv4 addresses 4.61K 8 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly FR
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Castle IT

France · AI-generated

hosting business france

The AS handle CASTLE-IT is held by Castle IT (PLT Connectic SARL).

What it's used for

  • The address space carries hosting and business infrastructure, evidenced by netnames such as Hosting-servers, FR-ARAINFO07-20231101, and First_block_MRS.
  • The AS announces 4,608 IPv4 addresses across 8 prefixes with 4 observed neighbours, a ratio indicating a hosting or business network rather than a transit provider.
  • Traffic from this AS consists of web servers, API endpoints, and business applications for clients such as ARA informatique SAS and Groupe Convergence.

Notable

  • Registrants include PLT Connectic SARL, A2IP Telecom SAS, Groupe Convergence ADMIN, and ARA informatique SAS, indicating a mix of owned and leased or client-specific address space.
  • The inventory consists of eight distinct IPv4 prefixes ranging from /22 to /24, with no IPv6 prefixes announced.
  • Reverse DNS entries predominantly point to not-updated.castle-it.net, with a single exception for lco.sparkwine.fr.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3215Orange S.A.850
AS25540Alphalink SASU167
AS6461Zayo Bandwidth60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 8 prefixes · 4.61K addresses IPv6 0 prefixes

CountryNamePrefixes
FRFrance8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS202757
Registry name
CASTLE-IT
Registrant
MNT-PLT
Abuse contact
billing-plt@naquadah.net
Registered
2016-06-09
Last changed
2026-09-22
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
CASTLE-IT
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
Website
https://castle-it.fr

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
89% valid · 16 valid, 2 with no ROA
ROAs
16 authorising AS202757
ASPA
no ASPA record
IRR
94% registered · 17 of 18 announcements
Route objects
20 naming AS202757

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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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