AS11829 Cadence Design Systems, Inc.

CADENCE - Cadence Design Systems, Inc. · registered in the United States

IPv4 addresses1,5366 prefixes · <0.001% of announced IPv4

Rank in United States#6,942largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#26,452of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS11829 in ASN lookup Look up an IP in this network (158.140.1.1) All networks in United States

IPv4 prefixes

All 6 prefixes, in address order.

158.140.1.0/24
158.140.2.0/24
158.140.5.0/24
192.190.239.0/24
192.203.56.0/24
199.43.4.0/24

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AS11821#6941 SMARTBURST - SmartBurst LLC1,536

AS11862#6943 GSIC-NV - Radial, Inc.1,536

AS11892#6944 PEARSON-NA - NCS Pearson Inc.1,536

AS11928#6945 HBGUSA - Hachette Book Group, Inc.1,536

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