Autonomous system
AS15404: COLT Technology Services Group Limited
United Kingdom · business ISP
Estimated users is a published estimate of how many people use this network, extrapolated from 27,203 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
- Its space resolves to 12 countries, concentrated in United Kingdom (49% of the IPv4 space), a multinational footprint.
- An estimated 37,341 people using this network are in Italy, the largest of the 6 countries it serves, 0.1% of everyone online there.
- The same operator runs 7 other networks, listed below.
- 72 distinct organisations hold registered assignments inside this space, so an address here often belongs to one of their customers.
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 | 49% | 6% | |
| Germany | 19% | <0.1% | |
| United States | 11% | - | |
| Italy | 11% | - | |
| France | 2% | - | |
| Switzerland | 1% | <0.1% | |
| Denmark | 1% | - | |
| Belgium | 1% | - | |
| Netherlands | 1% | 94% | |
| Everything else (3 more) | 1% | - |
Organisations holding assignments here
Registered organisations account for 86% 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.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 | |
|---|---|---|---|
| Guy's and St Thomas' NHS Foundation Trust | 54% | - | |
| Deutsches Patent- und Markenamt | 7% | <0.1% | |
| Aconet Srl | 7% | - | |
| Poste Italiane S.p.A. | 5% | - | |
| Mahle Behr GmbH & Co.Kg | 4% | - | |
| Sopra Steria SE | 2% | - | |
| Hannover Rueck SE | 1% | - | |
| BRUSSELS AIRPORT COMPANY S.A. | 1% | - | |
| Centric Netherlands B.V. | 0.4% | 94% | |
| Konrad-Adenauer-Stiftung e.V. | 0.2% | <0.1% | |
| NEOFONIE GMBH | 0.2% | <0.1% | |
| INTERPUBLIC GIS (UK) LTD | - | 6% | |
| Everything else (60 more) | 18% | <0.1% |
Anonymizer signals
None of this space carries an anonymiser or hosting flag.
Other networks from this operator
| ASN | Name | Estimated users |
|---|---|---|
| AS6675 | COLT Technology Services Group Limited | - |
| AS8372 | COLT Technology Services Group Limited | - |
| AS9126 | COLT Technology Services Group Limited | - |
| AS12640 | COLT Technology Services Group Limited | - |
| AS12755 | COLT Technology Services Group Limited | - |
| AS12761 | COLT Technology Services Group Limited | - |
| AS12878 | COLT Technology Services Group Limited | - |
See the combined view for COLT Technology Services Group Limited, where all 8 of their networks are totalled together.
Every figure on this page is also JSON: /api/v2/directory/asn/15404. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.