AS21326 OpenNet-SA AT&T Global Network Services Nederland B.V.

OpenNet-SA AT&T Global Network Services Nederland B.V. · registered in the Netherlands

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

Rank in Netherlands#327largest network in NL by IPv4 space, of 1,026 · <0.01% of NL

Rank worldwide#19,838of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS21326 in ASN lookup Look up an IP in this network (15.36.69.1) All networks in Netherlands

IPv4 prefixes

All 5 prefixes, in address order.

15.36.69.0/24
15.36.70.0/23
15.36.120.0/22
15.36.124.0/23
15.40.75.0/24

IPv6 prefixes

All 1 prefix.

2608:c16b:2000::/40

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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