AS395266 Keysight Technologies, Inc

KEYSIGHT-TECHNOLOGIES - Keysight Technologies, Inc · registered in the United States

IPv4 addresses4,88016 prefixes · <0.001% of announced IPv4

Rank in United States#4,155largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#13,848of 79,396 networks with IPv4

IPv66 x /485 prefixes

CountryUnited States18,679 ASNs registered there

Open AS395266 in ASN lookup Look up an IP in this network (192.6.21.1) All networks in United States

IPv4 prefixes

All 16 prefixes, in address order.

192.6.21.0/24
192.25.1.0/24
192.25.2.0/23
192.25.4.0/22
192.25.19.0/24
192.25.21.0/24
192.25.22.0/24
192.25.24.0/24
192.25.34.0/24
192.25.42.0/24
192.25.46.0/24
192.25.50.0/24
192.25.52.0/24
192.25.55.0/24
192.25.78.0/24
203.78.194.160/28

IPv6 prefixes

All 5 prefixes.

2404:5740::/48
2620:17b:3::/48
2620:17b:5::/48
2620:17b:6::/47
2a09:9ec0::/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