AS211321 NLnetLabs Stichting NLnet Labs

NLnetLabs Stichting NLnet Labs · registered in the Netherlands

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Netherlands#675largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#47,614of 79,396 networks with IPv4

IPv6260 x /484 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS211321 in ASN lookup Look up an IP in this network (185.49.142.1) All networks in Netherlands

IPv4 prefixes

All 1 prefix, in address order.

185.49.142.0/23

IPv6 prefixes

All 4 prefixes.

2a04:b904::/48
2a04:b904:7200::/40
2a04:b906::/48
2a04:b907::/47

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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