AS5419 CUCI Cubic Circle B.V.

CUCI Cubic Circle B.V. · registered in the Netherlands

IPv4 addresses1,5363 prefixes · <0.001% of announced IPv4

Rank in Netherlands#403largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#26,408of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryNetherlands1,098 ASNs registered there

Open AS5419 in ASN lookup Look up an IP in this network (212.125.128.1) All networks in Netherlands

IPv4 prefixes

All 3 prefixes, in address order.

212.125.128.0/22
212.125.135.0/24
212.125.143.0/24

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AS25288#405 LIR-UKRAINE-AS DEMENIN B.V.1,536

AS56504#406 HOSTCIRCLE-L-NL HostCircle B.V.1,536

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