AS14203 Juniper Networks, Inc.

JUNIPER-NETWORKS - Juniper Networks, Inc. · registered in the United States

IPv4 addresses6,92014 prefixes · <0.001% of announced IPv4

Rank in United States#3,612largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#11,618of 79,396 networks with IPv4

IPv6256 x /4814 prefixes

CountryUnited States18,679 ASNs registered there

Open AS14203 in ASN lookup Look up an IP in this network (12.0.126.1) All networks in United States

IPv4 prefixes

All 14 prefixes, in address order.

12.0.126.0/23
66.129.224.0/22
66.129.232.0/22
66.129.237.0/24
66.129.238.0/23
66.129.240.0/22
66.129.244.0/23
66.129.246.0/24
66.129.250.0/24
67.91.204.0/23
165.254.24.16/29
198.186.160.0/24
207.17.137.0/24
208.184.90.0/23

IPv6 prefixes

All 14 prefixes.

2620:103:c000::/45
2620:103:c008::/47
2620:103:c00a::/48
2620:103:c00b::/48
2620:103:c00c::/46
2620:103:c010::/44
2620:103:c020::/48
2620:103:c021::/48
2620:103:c022::/47
2620:103:c024::/46
2620:103:c028::/45
2620:103:c030::/44
2620:103:c040::/42
2620:103:c080::/41

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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