AS41281 KEFF KeFF Networks Ltd

KEFF KeFF Networks Ltd · registered in the United Kingdom

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in United Kingdom#1,027largest network in GB by IPv4 space, of 2,074 · <0.01% of GB

Rank worldwide#35,630of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS41281 in ASN lookup Look up an IP in this network (45.154.252.1) All networks in United Kingdom

IPv4 prefixes

All 3 prefixes, in address order.

45.154.252.0/24
45.154.254.0/23
193.189.100.0/24

IPv6 prefixes

All 2 prefixes.

2a0f:df00::/48
2a0f:df00:dead::/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