AS35425 BYTEMARK-AS Iomart Managed Services Limited

BYTEMARK-AS Iomart Managed Services Limited · registered in the United Kingdom

IPv4 addresses55,80821 prefixes · 0.002% of announced IPv4

Rank in United Kingdom#82largest network in GB by IPv4 space, of 2,074 · 0.08% of GB

Rank worldwide#3,767of 79,396 networks with IPv4

IPv69 x /32 (589,824 x /48)4 prefixes

CountryUnited Kingdom2,261 ASNs registered there

Open AS35425 in ASN lookup Look up an IP in this network (5.28.56.1) All networks in United Kingdom

IPv4 prefixes

All 21 prefixes, in address order.

5.28.56.0/21
5.77.47.0/24
5.153.224.0/21
46.43.0.0/18
80.68.80.0/20
89.16.160.0/19
91.223.58.0/24
109.75.161.0/24
109.75.162.0/23
109.75.164.0/24
185.4.176.0/22
185.15.240.0/22
185.90.192.0/22
193.32.103.0/24
194.76.16.0/23
194.76.26.0/23
212.110.160.0/19
213.138.96.0/19
213.175.196.0/24
213.175.208.0/24
213.175.216.0/24

IPv6 prefixes

All 4 prefixes.

2001:41c8::/31
2001:41ca::/31
2001:41cc::/30
2a0f:23c7::/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