Home ASN LookupAS203323

AS203323 OPENSENT OpenSent B.V.

🇳🇱

Org handle: ORG-OB111-RIPE

RIPE NCCallocatedASPA Published

Announced Prefixes (BGP)

3total

1 IPv42 IPv6

IPv4 Addresses

Allocated (RIR)256

Announced (BGP)256

IPv6 Addresses

Allocated (RIR)4.9×10²⁷

Announced (BGP)4.9×10²⁷

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

2025-11-28

Routing hygiene

Score 10/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 0/100

Only one upstream seen in the AS paths of its routes

Based on 3 announced prefixes, updated daily (2026-10-18). How the score works · RPKI explained

Announced Prefixes

(BGP)3

Prefix	RPKI	IRR	Last Seen
2.58.58.0/24	Valid	RIPE	2026-10-19
2a09:e244:b000::/36	Valid	RIPE	2026-10-19
2a09:e244:b000::/48	Valid	RIPE	2026-10-19

Allocated Prefixes

(RIR)2

Prefix	Country	RIR	Status
2.58.58.0/24	🇳🇱 NL	RIPE	assigned
2a09:e244:b000::/36	🇳🇱 NL	RIPE	assigned

All 3 announced prefixes of AS203323 →

Upstream Providers(6)

ASN	Name
AS174	🇺🇸COGENT-174 - Cogent Communications, LLC
AS3356	🇺🇸LEVEL3 - Level 3 Parent, LLC
AS6453	🇺🇸AS6453 - TATA COMMUNICATIONS (AMERICA) INC
AS6762	🇮🇹SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.
AS6830	🇳🇱LibertyGlobal Liberty Global Europe Holding B.V.
AS35133	🇳🇱ERANIUM Eranium B.V.

Downstream Customers(2)

ASN	Name
AS57706	🇳🇱HYBULA Hybula B.V.
AS207994	🇧🇪Blockchain-Creek Blockchain Creek B.V.

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS203323 hands its own prefixes to: transit providers, or peers at an exchange.

AS6453TATA COMMUNICATIONS (AMERICA)3

Downstreams (1)

Networks whose own prefixes AS203323 passes on: usually its customers.

AS53356FREE RANGE CLOUD Free Range Cloud Hosting1

Other adjacent networks (1)

Adjacent to AS203323 in the transit part of AS paths: peers, providers or customers.

AS6204ZET NET INTERKVM HOST1

ASPA

Published6 upstreams, 2 downstreams

Authorized Upstream Providers

AS174 AS3356 AS6453 AS6762 AS6830 AS35133

Expires 2026-10-27

Listed as Upstream Provider by

2 ASNs

View full ASPA details →

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/203323

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/203323" | jq