Broadband availability
Broadband in Allt-yr-yn
Showing results for postcode NP20 3QU.
Compare Broadband Deals in Allt-yr-yn
Broadband Types Available in Allt-yr-yn
| Type | Status | Download | Upload |
|---|---|---|---|
| Standard Broadband | Not available | — | — |
| Superfast Broadband | Available | 36 Mbps | 20 Mbps |
| Ultrafast / Full Fibre | Available | 900 Mbps | 900 Mbps |
| Mobile Broadband | Available | N/A | N/A |
Best option in Allt-yr-yn
Full fibre (FTTP) is available in Allt-yr-yn, with typical download speeds of around 888 Mbps. This is the fastest and most reliable type of home broadband connection.
Broadband Providers in Allt-yr-yn
Customer ratings sourced from Trustpilot. Checked 18 June 2026.
Postcodes in Allt-yr-yn
Nearby Areas
About Broadband in Allt-yr-yn
Allt-yr-yn is in Caerphilly. Full fibre broadband is available here, with typical download speeds of around 888 Mbps, well above the UK average of 69 Mbps. Most major providers cover the area, so there is a reasonable amount of competition on price.
Standard broadband runs over the copper phone network. Speeds depend on your distance from the telephone exchange and typically range from around 5 Mbps to 20 Mbps.
Superfast broadband (FTTC) uses a fibre optic cable to your street cabinet, then copper for the final stretch to your home. Most urban and suburban areas can get speeds of 35 to 80 Mbps.
Full fibre (FTTP) runs fibre optic cable all the way into your home. It is the fastest and most reliable option available, with speeds from 100 Mbps upwards.
What's Happening with Broadband in Allt-yr-yn?
Allt-yr-yn sits within a part of Wales that has seen significant full fibre investment over recent years. Openreach has now passed more than 1.25 million Welsh premises with its FTTP network, pushing Wales past the 81% full fibre availability mark. That puts the area comfortably ahead of the UK national average of around 82% gigabit-capable coverage as of spring 2026, and well ahead of where Wales stood just three years ago.
Take-up tells a strong story too. Welsh residents are adopting full fibre at a rate of roughly 50% of those who have access, compared to a UK-wide figure of around 38%. That suggests local confidence in the technology and, increasingly, in the speeds on offer. Allt-yr-yn properties covered by Openreach FTTP can access headline speeds of around 888 Mbps, which is broadly in line with top-tier residential packages across Wales.
No specific network expansion announcements for Allt-yr-yn have been published at the time of writing. However, two alternative network providers are active in the broader region and worth checking: Ogi, which has been rolling out full fibre across South and West Wales, and TfW Fibre, which operates primarily in the Cardiff area and Valleys corridor. Availability from either altnet will depend on your specific postcode.
It is also worth noting the PSTN copper switch-off, scheduled for January 2027. BT and other providers will retire the old analogue phone network entirely by that date. If you or anyone in your household relies on a copper-based phone line or an older broadband connection, now is the time to plan a move to a fibre or digital voice service before the deadline.
Use the postcode checker above to see which full fibre providers are available at your address in Allt-yr-yn right now.