AS199927 ITB2 ITB-Kwadraat BV

ITB2 ITB-Kwadraat BV · registered in the Netherlands

IPv4 addresses2,5605 prefixes · <0.001% of announced IPv4

Rank in Netherlands#318largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#19,612of 79,396 networks with IPv4

IPv616 x /32 (1,048,576 x /48)3 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS199927 in ASN lookup Look up an IP in this network (45.11.12.1) All networks in Netherlands

IPv4 prefixes

All 5 prefixes, in address order.

45.11.12.0/23
45.11.14.0/24
185.42.56.0/23
185.42.58.0/24
185.251.236.0/22

IPv6 prefixes

All 3 prefixes.

2a04:8e40::/29
2a0c:1ec0::/30
2a0c:1ec4::/30

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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