Broadband availability
Broadband in Carmarthenshire
Browse all areas in Carmarthenshire or enter your postcode for exact availability results.
- Full Fibre Coverage
- 100%
- of areas in Carmarthenshire
- Avg Full Fibre Speed
- 859 Mbps
- typical download
- Avg Superfast Speed
- 46 Mbps
- typical download
- Providers Available
- 11
- covering Carmarthenshire
Coverage overview
Broadband coverage in Carmarthenshire
Full fibre broadband is available across all areas in Carmarthenshire, with typical download speeds of around 859 Mbps. Coverage is among the best in the country.
With full fibre available across Carmarthenshire, residents can access some of the fastest home broadband connections in the UK. Speeds of 859 Mbps are achievable on full fibre packages, which is well suited to households with multiple devices, home workers, and anyone who streams in 4K.
Best available
full fibre
859 Mbps avg download
Compare Broadband Deals in Carmarthenshire
Showing live pricing for Carmarthen Town North, Carmarthenshire as a benchmark. Enter your postcode above for results at your specific address.
12 deals loaded
Full Fibre 5004.0(129k Trustpilot reviews)
Full FibreClaim up to £200 Switching Credit.
500 Mbps
avg. download speed
68 Mbps upload
£28 /mo
24 month contract
Increases annually on 1 April by £3.00
Intelligent WiFi Hub
Full Fibre 9004.0(82k Trustpilot reviews)
Full FibreSpecial OfferClaim up to £300 switching credit£145 Reward Card.
Smart Hub 7 Plus RouterPause and manage WiFi in the EE app
Sky Full Fibre 1502.7(28k Trustpilot reviews)
Full FibreSpecial Offer£80 Gift CardClaim up to £200 switching credit.
150 Mbps
avg. download speed
27 Mbps upload
£23 /mo
24 month contract
Price could change during your contract
£5 upfront fee is credited back to your accountSky must give you 1 month's notice for any mid-contract price risesIf you are unhappy with a mid-contract price rise, Sky will offer you the right to exit your contract.
Full Fibre 1502.1(21k Trustpilot reviews)
Full FibreSpecial Offer£120 Reward Card.
150 Mbps
avg. download speed
27 Mbps upload
£23.99 /mo
24 month contract
Price will increase by £3 p/m every March during contract
Includes Cyber Threat Protect, powered by NortonNew Smart Hub 3 router100MB Stay Fast Guarantee (or £20 back and no early exit fee)*
Full Fibre 1451.8(12k Trustpilot reviews)
Full FibreSpecial Offer£140 Reward Card.
145 Mbps
avg. download speed
30 Mbps upload
£22.99 /mo
24 month contract
Price will increase by £3 p/m every March during contract
Exclusive Offers and Discounts for Plusnet CustomersFull Fibre connection to your homeGreat for gaming and streaming in 4K UHD with multiple devices online the same time
900Mb Full Fibre (24 Months)
Full Fibre
900 Mbps
avg. download speed
900 Mbps upload
£33.99 /mo
First 12 months
then £38.99/mo
24 month contract
£5 off per month, for 12 monthsIdeal for HD video streaming, gamers & Cloud-based workSymmetrical speeds
300Mb Full Fibre (24 Months)
Full Fibre
300 Mbps
avg. download speed
300 Mbps upload
£20 /mo
First 12 months
then £40/mo
24 month contract
Price will rise annually. This will be capped at £3 p/m
£20 off per month, for 12 monthsIf prices increase, customers can leave within 30 days, penalty-freeSymmetrical speeds
900Mb Full Fibre (24 Months)
Full Fibre
900 Mbps
avg. download speed
900 Mbps upload
£22 /mo
First 12 months
then £44/mo
24 month contract
Price will rise annually. This will be capped at £3 p/m
£22 off per month, for 12 monthsIf prices increase, customers can leave within 30 days, penalty-freeIdeal for HD video streaming, gamers & Cloud-based work
Sky Full Fibre 752.7(28k Trustpilot reviews)
Full Fibre£50 Gift CardClaim up to £200 switching credit.
75 Mbps
avg. download speed
19 Mbps upload
£23 /mo
24 month contract
Price could change during your contract
£5 upfront fee is credited back to your accountSky must give you 1 month's notice for any mid-contract price risesIf you are unhappy with a mid-contract price rise, Sky will offer you the right to exit your contract.
Sky Full Fibre 5002.7(28k Trustpilot reviews)
Full Fibre£80 Gift CardClaim up to £200 switching credit.
500 Mbps
avg. download speed
60 Mbps upload
£27 /mo
24 month contract
Price could change during your contract
£5 upfront fee is credited back to your accountSky must give you 1 month's notice for any mid-contract price risesIf you are unhappy with a mid-contract price rise, Sky will offer you the right to exit your contract.
Full Fibre 3001.8(12k Trustpilot reviews)
Full Fibre£140 Reward Card.
300 Mbps
avg. download speed
50 Mbps upload
£23.99 /mo
24 month contract
Price will increase by £3 p/m every March during contract
Exclusive Offers and Discounts for Plusnet CustomersFull Fibre connection to your homeGreat for gaming and streaming in 4K UHD with multiple devices online the same time
Sky Full Fibre Gigafast2.7(28k Trustpilot reviews)
GIGAFAST£100 Gift CardClaim up to £200 switching credit.
900 Mbps
avg. download speed
100 Mbps upload
£30 /mo
24 month contract
Price could change during your contract
£5 upfront fee is credited back to your accountSky must give you 1 month's notice for any mid-contract price risesIf you are unhappy with a mid-contract price rise, Sky will offer you the right to exit your contract.
Pricing correct at time of display. Click through to provider for full terms.
Broadband Providers in Carmarthenshire
Customer ratings sourced from Trustpilot. Checked 18 June 2026.
Areas in Carmarthenshire
Aber-crafAbergwiliAmmanfordAmroth and Saundersfoot NorthBetwsBeulahBigynBoncathBurry PortByneaCarmarthen Town NorthCarmarthen Town WestCenarthCilycwmCrymych and Mynachlog-dduCwarter BachCwm-twrchCwmllynfellCynwyl ElfedDafenElliGarnantGlanammanGlanymorGorseinonGorslasGwaun-Cae-Gurwen and Lower BrynammanHendyKidwelly and St IshmaelLampeterLampeter VelfreyLaugharne TownshipLlanboidyLlanddarogLlandeiloLlandoveryLlandybieLlandyfriogLlandysilioLlandysul NorthLlandysul SouthLlanegwadLlanfihangel AberbythychLlanfihangel YstradLlanfihangel-ar-ArthLlangadogLlangeithoLlangennechLlangunnorLlangybiLlangyfelachLlangyndeyrnLlannarthLlannonLlanwenogLlanybydderLliediLlwchwrLlwynhendyMaenclochogManordeiloNarberth: RuralNarberth: UrbanNew QuayPembreyPen-clawddPenllergaerPontarddulaisPontlliwPontyberemSaronSt ClearsSwiss ValleyTrelechTrimsaranTycroesTyishaWhitlandYnyscedwyn