AS21489 SHAPE-AS The North Atlantic Treaty Organization

SHAPE-AS The North Atlantic Treaty Organization · registered in Belgium

IPv4 addresses1,7924 prefixes · <0.001% of announced IPv4

Rank in Belgium#93largest network in BE by IPv4 space, of 273 · 0.02% of BE

Rank worldwide#25,103of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBelgium294 ASNs registered there

Open AS21489 in ASN lookup Look up an IP in this network (91.223.21.1) All networks in Belgium

IPv4 prefixes

All 4 prefixes, in address order.

91.223.21.0/24
185.45.52.0/22
192.101.252.0/24
193.110.130.0/24

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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