AS397956 Network Data Systems, Inc

NETWORK-DATA-SYSTEMS - Network Data Systems, Inc · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#10,142largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#47,520of 79,396 networks with IPv4

IPv64,096 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS397956 in ASN lookup Look up an IP in this network (192.43.154.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

192.43.154.0/23

IPv6 prefixes

All 1 prefix.

2602:ffdd::/36

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AS398485#10144 DFINITY-NET - DFINITY USA Research, LLC512

AS398942#10145 PZNET - Pueblo of Zia512

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