Registered organisation

MAINFRAME & CYBERNETIC SYSTEMS LIMITED

Address space registered to MAINFRAME & CYBERNETIC SYSTEMS LIMITED, and where it is announced from.

Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.

IPv4 addresses

48,064

IPv6 /64s

34,359,672,832

Registered blocks

Countries

What this tells you

Holds 48,064 IPv4 addresses and 34,359,672,832 IPv6 /64 networks across 37 registered blocks.
Announced by 7 networks, the largest being AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED at 96% of the IPv4 space.
All of the space we can place resolves to United Kingdom.

Networks announcing this space

Space announced by a network covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

Network	IPv4 share	IPv6 share
AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED	96%	100%
AS206483 Red Matter Limited	1%	-
AS1299 Arelion (fka. Telia Carrier)	0.5%	-
AS40513 Edge Technology Group, LLC	0.5%	-
AS207784 HybrIT Services Ltd	0.5%	-
AS12703 Pulsant (Scotland) Ltd	0.5%	-
AS200468 ALVAREZ & MARSAL DISPUTES AND INVESTIGATIONS LLP	0.5%	-

Countries this space resolves to

Space we can place in a country covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

Country	IPv4 share	IPv6 share
United Kingdom	100%	100%

An operator of the same name runs networks of its own: see MAINFRAME & CYBERNETIC SYSTEMS LIMITED for the networks side of the same company.

Holding a block is a registry fact, not a physical one. The organisation named here is who the block is assigned to, which is often a customer of the network operator announcing it.

Every figure on this page is also JSON: /api/v2/directory/org/mainframe-cybernetic-systems-limited. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.