AS57758 CBWS-AS CBWS Holding B.V.

CBWS-AS CBWS Holding B.V. · registered in the Netherlands

IPv4 addresses1,2802 prefixes · <0.001% of announced IPv4

Rank in Netherlands#436largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#27,940of 79,396 networks with IPv4

IPv622,547 x /488 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS57758 in ASN lookup Look up an IP in this network (185.142.141.1) All networks in Netherlands

IPv4 prefixes

All 2 prefixes, in address order.

185.142.141.0/24
185.167.204.0/22

IPv6 prefixes

All 8 prefixes.

2a0b:b600:110::/44
2a0b:b600:2000::/37
2a0b:b600:3802::/47
2a0b:b600:3c04::/48
2a0b:b602:1000::/36
2a0b:b602:2000::/35
2a0b:b602:4000::/36
2a0b:b602:8000::/36

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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