AS61429 AS-CASTOR Castor Marine B.V.

AS-CASTOR Castor Marine B.V. · registered in the Netherlands

IPv4 addresses5,12014 prefixes · <0.001% of announced IPv4

Rank in Netherlands#215largest network in NL by IPv4 space, of 1,026 · 0.01% of NL

Rank worldwide#13,386of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS61429 in ASN lookup Look up an IP in this network (38.125.107.1) All networks in Netherlands

IPv4 prefixes

All 14 prefixes, in address order.

38.125.107.0/24
62.41.2.0/24
62.41.10.0/24
62.41.20.0/23
62.41.59.0/24
62.41.60.0/24
81.23.240.0/23
92.71.10.0/23
92.71.15.0/24
92.71.16.0/24
92.71.19.0/24
92.71.20.0/24
92.71.22.0/24
185.6.108.0/22

IPv6 prefixes

All 1 prefix.

2a03:1340::/32

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources