AS56478 BCUBE-AS Hyperoptic Ltd

BCUBE-AS Hyperoptic Ltd · registered in the United Kingdom

IPv4 addresses141,31243 prefixes · 0.005% of announced IPv4

Rank in United Kingdom#34largest network in GB by IPv4 space, of 2,074 · 0.21% of GB

Rank worldwide#1,399of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS56478 in ASN lookup Look up an IP in this network (31.14.248.1) All networks in United Kingdom

IPv4 prefixes

All 43 prefixes, in address order.

31.14.248.0/22
37.156.72.0/22
68.168.32.0/19
88.98.192.0/20
88.98.208.0/21
88.98.216.0/23
88.98.218.0/23
88.98.220.0/22
88.98.224.0/20
88.98.240.0/22
88.98.244.0/22
88.98.248.0/21
89.32.120.0/22
89.34.164.0/22
89.35.196.0/22
89.36.64.0/21
89.39.136.0/21
89.44.40.0/22
93.115.192.0/22
137.220.64.0/18
140.228.32.0/20
140.228.48.0/21
140.228.56.0/22
140.228.60.0/23
140.228.62.0/23
140.228.64.0/20
140.228.80.0/21
140.228.88.0/21
141.0.144.0/20
143.58.128.0/17
152.37.64.0/19
152.37.96.0/22
152.37.100.0/23
152.37.102.0/23
152.37.104.0/21
152.37.112.0/20
185.24.120.0/22
188.172.144.0/20
188.210.208.0/21
188.211.160.0/22
188.213.136.0/22
188.214.8.0/21
209.35.64.0/19

IPv6 prefixes

All 1 prefix.

2a01:4b00::/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