Home ASN LookupAS61429

AS61429 AS-CASTOR Castor Marine B.V.

🇳🇱

Org handle: ORG-CHB2-RIPE

RIPE NCCallocatedASPA Published

Announced Prefixes (BGP)

19total

19 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)5,632

Announced (BGP)5,120

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇳🇱 NL

RIR

RIPE NCC

Status

allocated

Allocated

2012-10-12

Announced Prefixes

(BGP)19

Prefix	RPKI	IRR	Last Seen
38.125.107.0/24	No ROA	Other IRR	-
62.41.2.0/24	Valid	RIPE	-
62.41.10.0/24	Valid	RIPE	-
62.41.20.0/24	Valid	RIPE	-
62.41.21.0/24	Valid	RIPE	-
62.41.59.0/24	Valid	RIPE	-
62.41.60.0/24	Valid	RIPE	-
81.23.240.0/23	Valid	RIPE	-
92.71.10.0/24	Valid	RIPE	-
92.71.11.0/24	Valid	RIPE	-

1-10 of 19

1 / 2

Allocated Prefixes

(RIR)19

Prefix	Country	RIR	Status
62.41.2.0/24	🇳🇱 NL	RIPE	assigned
62.41.10.0/24	🇳🇱 NL	RIPE	assigned
62.41.20.0/24	🇳🇱 NL	RIPE	assigned
62.41.21.0/24	🇳🇱 NL	RIPE	assigned
62.41.59.0/24	🇳🇱 NL	RIPE	assigned
62.41.60.0/24	🇳🇱 NL	RIPE	assigned
81.23.240.0/23	🇳🇱 NL	RIPENCC	allocated
92.71.10.0/24	🇳🇱 NL	RIPE	assigned
92.71.11.0/24	🇳🇱 NL	RIPE	assigned
92.71.15.0/24	🇳🇱 NL	RIPE	assigned

1-10 of 19

1 / 2

All 19 announced prefixes of AS61429 →

Upstream Providers(3)

ASN	Name
AS174	🇺🇸COGENT-174 - Cogent Communications, LLC
AS286	🇺🇸KPN GTT Communications Inc.
AS3257	🇺🇸GTT-BACKBONE GTT Communications Inc.

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS61429 hands its own prefixes to: transit providers, or peers at an exchange.

AS3257GTT BACKBONE GTT Communications17
AS174Cogent Communications2

Transfer History

Registry transfers of AS61429 between organisations.

AS61429M&A · 2026-09-09
Castor Communications BV
🇳🇱 NL RIPE NCC
→
Castor Marine B.V.
🇳🇱 NL RIPE NCC

Date	Resource	From	To	Type
2026-09-09	AS61429	Castor Communications BV 🇳🇱 NL RIPE NCC	Castor Marine B.V. 🇳🇱 NL RIPE NCC	M&A

ASPA

Published3 upstreams, 0 downstreams

Authorized Upstream Providers

AS174 AS286 AS3257

Expires 2026-10-12

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/61429

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

curl -s "https://api.ipctl.io/v1/asn/61429" | jq