A list of all United Kingdom ASNs including hosting providers, ISPs, and businesses with announced IPv4 and IPv6 prefixes.
| ASN | Type | IPv4 Routes | IPv6 Routes | Company |
|---|---|---|---|---|
| AS201115 | Other Business | 1 | 1 | Pylon One Ltd |
| AS201277 | Other Business | 1 | 1 | Eloquent Technologies Ltd |
| AS201303 | Other Business | 1 | 1 | CentralNic Ltd |
| AS201304 | Other Business | 1 | 1 | CentralNic Ltd |
| AS201323 | Hosting Provider | 1 | 1 | Host Media Ltd |
| AS201353 | Other Business | 1 | 1 | Matthew Harrold |
| AS201357 | Hosting Provider | 1 | 1 | DPNET FAST RELIABLE HOSTING VPS CLOUD SOLUTIONS LTD |
| AS201506 | Hosting Provider | 1 | 1 | Incito Limited |
| AS201815 | Other Business | 1 | 1 | ItalPetrolCemenTermoTessilFarmoMetalChimica LTD |
| AS202190 | Other Business | 1 | 1 | ARISTO NETWORKS LTD |
| AS202212 | Hosting Provider | 1 | 1 | DWebs Ltd |
| AS202275 | Other Business | 1 | 1 | Gaming Technology Solutions Ltd. |
| AS202288 | Other Business | 1 | 1 | Matthew Martin |
| AS202310 | Other Business | 1 | 1 | Hyve Ltd |
| AS202443 | Other Business | 1 | 1 | WINE AND FOOD PARTNERS LTD |
| AS202590 | Other Business | 1 | 1 | Edinburgh Hacklab Ltd |
| AS202907 | Other Business | 1 | 1 | Atomic IT Limited |
| AS203001 | Other Business | 1 | 1 | GateX LIMITED |
| AS203105 | Other Business | 1 | 1 | Blahaj Internet Ltd |
| AS203449 | Other Business | 1 | 1 | Hopewiser Ltd |
| AS203460 | ISP & Mobile | 1 | 1 | Village Networks Ltd. |
| AS203589 | Hosting Provider | 1 | 1 | HOSTWEAVE LTD |
| AS203961 | Other Business | 1 | 1 | CentralNic Ltd |
| AS204024 | Other Business | 1 | 1 | Griffin Bank Ltd |
| AS204055 | Other Business | 1 | 1 | CentralNic Ltd |
| AS204089 | Other Business | 1 | 1 | Apollo Duck Media Ltd |
| AS204258 | Other Business | 1 | 1 | Vive Technologies Ltd |
| AS204778 | Other Business | 1 | 1 | Paul Nicholas Lewis |
| AS204939 | ISP & Mobile | 1 | 1 | TAC COMMUNICATIONS LTD |
| AS204979 | Other Business | 1 | 1 | London Internet Exchange Ltd. |
| AS205012 | ISP & Mobile | 1 | 1 | Giant Communications Ltd |
| AS205389 | ISP & Mobile | 1 | 1 | Zoom Internet Ltd |
| AS205565 | ISP & Mobile | 1 | 1 | Base Telecommunications LLP |
| AS205885 | ISP & Mobile | 1 | 1 | Cloudnet IT Solutions Ltd |
| AS205996 | Other Business | 1 | 1 | Interfiber Ltd |
| AS206160 | Other Business | 1 | 1 | Simon Mott |
| AS206324 | Hosting Provider | 1 | 1 | Stellium Networks Limited |
| AS206754 | Other Business | 1 | 1 | Alistair Mackenzie |
| AS20679 | Other Business | 1 | 1 | Syntura Group Limited |
| AS206939 | Other Business | 1 | 1 | Yospace Technologies Ltd |
| AS207072 | ISP & Mobile | 1 | 1 | Nigsun Limited |
| AS207080 | Other Business | 1 | 1 | Jack Fillan |
| AS207089 | Other Business | 1 | 1 | IT Systems & Support Limited |
| AS207155 | Hosting Provider | 1 | 1 | Stormnet Hosting LTD |
| AS207477 | Other Business | 1 | 1 | PEACHY SERVERS LIMITED |
| AS207652 | ISP & Mobile | 1 | 1 | Key IoT Limited |
| AS207755 | Other Business | 1 | 1 | Rory Bolton |
| AS207846 | Other Business | 1 | 1 | Lauren Renee Kelly |
| AS208402 | Other Business | 1 | 1 | Cerner Limited |
| AS208563 | Other Business | 1 | 1 | CodeReactor Limited |
| AS208590 | Other Business | 1 | 1 | Lasagna Ltd |
| AS208755 | Other Business | 1 | 1 | Thomas Ferguson |
| AS208907 | Other Business | 1 | 1 | Rising Bridge Technology Ltd |
| AS209198 | Education | 1 | 1 | Offshore Renewable Energy Catapult |
| AS209215 | Other Business | 1 | 1 | Moe Network Ltd |
| AS209220 | Hosting Provider | 1 | 1 | Ablative Hosting Ltd |
| AS209264 | Other Business | 1 | 1 | Ivx Group Ltd |
| AS209503 | Hosting Provider | 1 | 1 | Zentyx Limited |
| AS209553 | Hosting Provider | 1 | 1 | NETVAZ LIMITED |
| AS209635 | Other Business | 1 | 1 | Red Matter Limited |
| AS209870 | Other Business | 1 | 1 | Cylo Ltd |
| AS210456 | Other Business | 1 | 1 | EastCoastHost Ltd |
| AS211175 | Other Business | 1 | 1 | Caudata Ltd |
| AS211244 | Other Business | 1 | 1 | Harley Tomas Watson |
| AS211289 | Other Business | 1 | 1 | Joshua Leahy |
| AS211437 | Other Business | 1 | 1 | Gareth Woolridge |
| AS211675 | Hosting Provider | 1 | 1 | Layershift Limited |
| AS212705 | Other Business | 1 | 1 | TIG Management Services Limited |
| AS212868 | Other Business | 1 | 1 | CHAPMAN Adam |
| AS213078 | ISP & Mobile | 1 | 1 | WiFi Scotland LLP |
| AS213150 | Other Business | 1 | 1 | Laurence White |
| AS213185 | Other Business | 1 | 1 | Eta Heese |
| AS213525 | ISP & Mobile | 1 | 1 | Motion Applied Limited |
| AS213692 | Other Business | 1 | 1 | CSCM Limited |
| AS214064 | Other Business | 1 | 1 | Kevin Titmarsh |
| AS214188 | Hosting Provider | 1 | 1 | VoltHosting Ltd |
| AS214311 | Hosting Provider | 1 | 1 | RDPCORE DC LTD |
| AS214409 | Hosting Provider | 1 | 1 | Robotic Node LTD |
| AS214451 | Other Business | 1 | 1 | Oliver Reid |
| AS214498 | ISP & Mobile | 1 | 1 | Motion Applied Limited |
| AS214634 | Other Business | 1 | 1 | Bressenden Associates Ltd |
| AS214947 | Other Business | 1 | 1 | Kaweb Limited |
| AS215008 | ISP & Mobile | 1 | 1 | e-volve Solutions Ltd |
| AS215252 | ISP & Mobile | 1 | 1 | Lantec Services Ltd |
| AS215322 | Hosting Provider | 1 | 1 | UK Dedicated Servers Limited |
| AS215833 | Other Business | 1 | 1 | Ablative Consulting Ltd |
| AS216186 | Other Business | 1 | 1 | Pen Test Partners LLP |
| AS216243 | Other Business | 1 | 1 | JACO ENGELBRECHT |
| AS216265 | Other Business | 1 | 1 | ARISTO NETWORKS LTD |
| AS28729 | Other Business | 1 | 1 | Ford Motor Company Limited |
| AS28886 | ISP & Mobile | 1 | 1 | RETN Limited |
| AS29200 | ISP & Mobile | 1 | 1 | Eseye Ltd |
| AS30847 | ISP & Mobile | 1 | 1 | Lancaster University Network Services Limited |
| AS34270 | ISP & Mobile | 1 | 1 | Internet Connections Ltd |
| AS34623 | Hosting Provider | 1 | 1 | Astutium Limited |
| AS35106 | Hosting Provider | 1 | 1 | Microsoft Limited |
| AS35559 | Other Business | 1 | 1 | Someaddress Networks Ltd |
| AS39202 | Other Business | 1 | 1 | Global Radio Limited |
| AS39576 | Hosting Provider | 1 | 1 | Sharpstack Hosting Ltd |
| AS39617 | Other Business | 1 | 1 | Chris Burton |