AS203135 CTNET CTNET B.V.

CTNET CTNET B.V. · registered in the Netherlands

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in Netherlands#656largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#46,281of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS203135 in ASN lookup Look up an IP in this network (185.45.148.1) All networks in Netherlands

IPv4 prefixes

All 2 prefixes, in address order.

185.45.148.0/24
193.189.89.0/24

IPv6 prefixes

All 1 prefix.

2a13:bdc0::/29

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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