UK Network · AS48825 · Cambridge

    UK business connectivity, on our own network.

    Leased lines, ethernet, peering, point-to-point and public cloud connect — all delivered from our privately-owned Cambridge Tier III data centre on our own RIPE-registered network, with 600 Gbps Corero DDoS protection included as standard.

    • Our own AS48825 — no resold transit
    • Carrier-diverse Openreach / CityFibre
    • LINX & LONAP peering included
    • 24/7 UK NOC in Cambridge
    noc.fast2host.com — as48825
    Fibre optic cables in the Fast2Host Cambridge data centre connecting to the AS48825 carrier network

    DDoS protection

    600 Gbps

    Our network

    AS48825

    AS48825

    Our own RIPE ASN

    600 Gbps

    Always-on DDoS capacity

    < 1 ms

    Local cross-connect latency

    99.99%

    Circuit uptime SLA

    Explore network services

    Every connectivity option, one UK ISP

    Pick the service that matches your stack. Every circuit terminates in the same Cambridge facility, on the same enterprise network.

    Why Fast2Host

    A real UK ISP, not a reseller

    We own the AS, the IPs, the routers, the data centre and the engineers — so we own the uptime.

    We run our own network (AS48825)

    RIPE-registered autonomous system with multi-homed transit, LINX & LONAP peering. No middlemen — we own the route, the IPs and the uptime.

    Built around Cambridge Tier III DC

    Our privately-owned UK data centre is the network hub. Carrier-diverse fibre entries, A+B power, N+1 cooling and 24/7 on-site engineers.

    600 Gbps DDoS, included

    Always-on Corero SmartWall mitigation across every port and every VLAN — protecting circuits, racks and hosting customers at no extra charge.

    Carrier-diverse fibre

    Openreach, CityFibre, Virgin Media O2, Colt, Zayo and Neos Networks — we pick the best tail circuit for your postcode, not whatever's easiest.

    Sub-1ms local latency

    Customers cross-connected inside our facility get sub-millisecond latency to each other and to peering points — measurably faster than the open internet.

    UK NOC, 24/7

    Speak to network engineers in Cambridge — not a script. Four-hour fix SLA on circuits, one-hour P1 response, no overseas call centre.

    Compare circuits

    Leased line vs ethernet vs P2P vs cloud connect

    A side-by-side look at our main circuit types so you can scope the right one first time.

    Leased Line (DIA)EthernetPoint-to-PointCloud Connect
    Bandwidth100 Mbps – 10 Gbps100 Mbps – 1 Gbps100 Mbps – 100 Gbps1 Gbps – 100 Gbps
    Contention1:1 uncontended1:1 uncontended1:1 uncontended1:1 dedicated VLAN
    Tail technologyFibre (EAD/FTTP)EoFTTC / EoFTTPDark or lit fibreCross-connect / VPN
    Public IPs/29 block included/29 block includedPrivate — no public IPPrivate peering
    SLA99.99% / 4-hour fix99.9% / next-day99.99% / 4-hour fix99.99% / 4-hour fix
    Best forOffices needing real internetBranch & SME sitesDC-to-DC, HQ-to-DCAWS / Azure / GCP
    Standard on every service

    No upsells. No nasty surprises.

    The essentials other ISPs charge extra for are included on every Fast2Host network service.

    • 600 Gbps DDoS protection
    • Carrier-diverse fibre
    • BGP / failover ready
    • IPv4 + IPv6 dual-stack
    • Public & private VLANs
    • Real-time bandwidth graphs
    • 99.99% uptime SLA
    • UK NOC, 24/7
    Site survey & quote

    Tell us your postcode — we'll do the rest.

    Our Cambridge network team will run a free postcode check across Openreach, CityFibre, Virgin Media O2, Colt and others, then come back with the fastest tail circuit and a fixed quote — usually within one working day.

    FAQ

    Common questions about UK business connectivity

    Leased lines, our own AS48825 network, DDoS protection and cloud connect — the questions our Cambridge NOC answer most often.

    • AS48825 · our own RIPE ASN & LINX/LONAP peering
    • 600Gbps Corero DDoS included on every circuit
    • Leased lines, ethernet, P2P & public cloud connect

    Can't see your question?

    Our UK network engineers are available 24/7 — get in touch for circuit quotes, BGP setup or postcode availability checks.

    Talk to our network team

    8 common questions

    A leased line (Dedicated Internet Access) is a symmetric, uncontended fibre circuit — the bandwidth is 1:1 and reserved for you 24/7, with upload speed matching download. Business broadband is contended, shared between many premises in your area, and typically gives only a fraction of the upload speed. Leased lines also come with hard SLAs (99.99% uptime, 4-hour fix) and static public IPs — both essential for VPNs, VoIP, cloud workloads and remote access.

    Talk to a network engineer

    Not sure which circuit you need?

    Our UK NOC will scope the right connectivity for your site — no pressure, no overseas call centre, no resold service.