AS50399 OPENLINE-AS Open Line Managed Services B.V.

OPENLINE-AS Open Line Managed Services B.V. · registered in the Netherlands

IPv4 addresses7,1689 prefixes · <0.001% of announced IPv4

Rank in Netherlands#176largest network in NL by IPv4 space, of 1,026 · 0.02% of NL

Rank worldwide#11,368of 79,396 networks with IPv4

IPv62 x /32 (131,074 x /48)4 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS50399 in ASN lookup Look up an IP in this network (91.209.213.1) All networks in Netherlands

IPv4 prefixes

All 9 prefixes, in address order.

91.209.213.0/24
92.42.232.0/21
109.232.40.0/21
185.3.204.0/23
185.3.206.0/24
185.3.207.0/24
185.23.218.0/23
185.150.159.0/24
185.223.140.0/22

IPv6 prefixes

All 4 prefixes.

2001:678:1288::/48
2a00:11e8::/32
2a03:3300::/32
2a10:dac0:100::/48

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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