Autonomous system
AS25577: MAINFRAME & CYBERNETIC SYSTEMS LIMITED
United Kingdom · consumer access network
Estimated users is a published estimate of how many people use this network, extrapolated from 23 observations over a 60 day window. Large operators often run several networks, so a low figure can mean their customers reach the internet through a sibling network.
What this tells you
- The population figure rests on 23 observations, so read it as an order of magnitude.
- The same operator runs 1 other network, listed below.
Countries in this space
Space we can place in a country covers 100% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space.
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| United Kingdom | 99% | 100% | |
| Türkiye | 0.5% | - |
Organisations holding assignments here
Registered organisations account for 100% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space. 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.
| Organisation | IPv4 share | IPv6 share | |
|---|---|---|---|
| MAINFRAME & CYBERNETIC SYSTEMS LIMITED | 94% | 100% | |
| Secure Email Hosting Limited | 2% | <0.1% | |
| Emailcenter UK Limited | 2% | - | |
| Konnex Networks Ltd | 0.6% | - | |
| Sedcom Networks | 0.5% | - | |
| CERKEZKOY ORGANIZE SANAYI BOLGESI | 0.5% | - | |
| Rethem Hosting LLC | 0.5% | - | |
| Force 10 Hosting | 0.3% | - | |
| Everything else (5 more) | 0.3% | - |
Anonymizer signals
None of this space carries an anonymiser or hosting flag.
Other networks from this operator
| ASN | Name | Estimated users |
|---|---|---|
| AS49503 | MAINFRAME & CYBERNETIC SYSTEMS LIMITED | - |
See the combined view for MAINFRAME & CYBERNETIC SYSTEMS LIMITED, where all 2 of their networks are totalled together.
Every figure on this page is also JSON: /api/v2/directory/asn/25577. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.