AS47720 CIX-AS Cork Internet Exchange Limited

CIX-AS Cork Internet Exchange Limited · registered in Ireland

IPv4 addresses15,61610 prefixes · <0.001% of announced IPv4

Rank in Ireland#25largest network in IE by IPv4 space, of 197 · 0.29% of IE

Rank worldwide#7,209of 79,396 networks with IPv4

IPv62 x /32 (131,073 x /48)3 prefixes

CountryIreland209 ASNs registered there

Open AS47720 in ASN lookup Look up an IP in this network (84.39.232.1) All networks in Ireland

IPv4 prefixes

All 10 prefixes, in address order.

84.39.232.0/21
89.31.168.0/21
91.103.0.0/21
91.223.9.0/24
185.49.60.0/22
185.57.116.0/22
185.137.20.0/22
185.175.168.0/22
185.176.0.0/22
217.74.48.0/20

IPv6 prefixes

All 3 prefixes.

2607:6b80:3d::/48
2a02:2078::/32
2a02:5b20::/32

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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