asn.dev

Autonomous system

AS203391 CLOUDNSNET Cloud DNS Ltd.

Hosting RIPE

IPv4 addresses 2.05K 2 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly BG
Exchanges 7 recorded by PCH
Upstreams 24 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 7 exchanges in 6 countries, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.209.218
NetIXSofia, Bulgaria185.1.226.134
ERA-IX AmsterdamAmsterdam, Netherlands185.1.240.243
Taipei Internet Exchange (TPIX)Taipei, Taiwan203.163.222.203
Bulgarian Internet eXchangeSofia, Bulgaria193.169.199.97
Tallinn Governmental Internet ExchangeTallinn, Estonia213.184.52.241
SAIX Saudi Arabia RiyadhRiyadh, Saudi Arabia45.94.12.32

Transit providers

24 upstream, 0 downstream and 38 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS60068Datacamp Limited154
AS25369Hydra Communications Ltd114
AS20473The Constant Company, LLC58
AS63023GTHost37
AS38001NewMedia Express Pte Ltd30
AS52025ParadoxNetworks Limited28
AS62563GLOBALTELEHOST Corp.28
AS56655Gigahost AS26

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 2 prefixes · 2.05K addresses IPv6 3 prefixes

CountryNamePrefixes
BGBulgaria5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203391
Registry name
CLOUDNSNET
Registrant
bg-cloud-1-mnt
Abuse contact
noc@cloudns.net
Registered
2016-01-28
Last changed
2026-08-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 12 valid, 0 with no ROA
ROAs
15 authorising AS203391
ASPA
48 declared providers
IRR
100% registered · 12 of 12 announcements
Route objects
30 naming AS203391

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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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