asn.dev

Autonomous system

AS43278 CASTLES-AS AntiDDoS Protection for your services

Unclassified RIPE

IPv4 addresses 4.35K 16 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 1 recorded by PCH
Upstreams 10 7 downstream
Flagged prefixes 0 none

Summary

Castles LLC

Russian Federation · AI-generated

hosting ddos business

CASTLES-AS is operated by Castles LLC.

What it's used for

  • The address space carries hosting and DDoS protection services, evidenced by netnames like RS-CASTLES and reverse DNS entries such as partner-protected-127.211.42.5.hostingrust.ru and mc.hypemc.pro.
  • The AS announces 4608 IPv4 addresses across 17 prefixes and 2 IPv6 prefixes, while maintaining 25 observed neighbours; this ratio indicates a hosting or service provider role rather than a large-scale transit or access network.
  • Traffic from this AS consists of web and API endpoints, game servers, and protected infrastructure for clients seeking DDoS mitigation, consistent with the operator's business model.

Notable

  • Registrants for the majority of prefixes align with the announcer, listing Castles.pro; Castles LLC, though some blocks are registered to Wireless Ltd, QWARTA LLC, and NetCrafters.
  • The address inventory is fragmented, with most prefixes being /24s and one /23, suggesting a collection of smaller leased or acquired blocks rather than a single contiguous allocation.

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
MSK-IX MoscowMoscow, Russia195.208.210.227

Transit providers

10 upstream, 7 downstream and 18 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS59796StormWall s.r.o.332
AS43298Storm Networks LLC189
AS9002RETN Limited55
AS35598INETCOM CARRIER LLC49
AS49673Truenetwork LLC14
AS24482SG.GS13
AS31500Global Network Management Inc9
AS57494Adman LLC4

All 10 upstreams →

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 16 prefixes · 4.35K addresses IPv6 2 prefixes

CountryNamePrefixes
RURussian Federation18

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS43278
Registry name
CASTLES-AS
Registrant
IP-RIPE
Abuse contact
support@castles.pro
Registered
2018-07-19
Last changed
2026-08-31
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 21 valid, 0 with no ROA
ROAs
25 authorising AS43278
ASPA
no ASPA record
IRR
100% registered · 21 of 21 announcements
Route objects
25 naming AS43278

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: 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