AS30931 IGINDEX-PLC IG Index Ltd.

IGINDEX-PLC IG Index Ltd. · registered in the United Kingdom

IPv4 addresses3,3287 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#556largest network in GB by IPv4 space, of 2,074 · <0.01% of GB

Rank worldwide#17,368of 79,396 networks with IPv4

IPv68 x /32 (524,289 x /48)2 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS30931 in ASN lookup Look up an IP in this network (91.223.203.1) All networks in United Kingdom

IPv4 prefixes

All 7 prefixes, in address order.

91.223.203.0/24
91.223.218.0/24
185.109.140.0/22
185.233.4.0/22
193.30.41.0/24
194.107.118.0/24
195.234.39.0/24

IPv6 prefixes

All 2 prefixes.

2001:67c:1b24::/48
2a0c:c900::/29

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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