92.3% of homes and businesses in Belfast can get full fibre broadband, above the UK figure of 81%. That's up 1.1 points in a year: 1,986 more premises can now order it. 427 still can't get 10 Mbit/s from a fixed line.
Fastest download speed available, share of all 174,558 premises (homes and businesses), January 2026.
Share of premises that can order full fibre (and gigabit, which also counts cable).
Full fibre Gigabit-capable (incl. cable)
| Belfast | Northern Ireland | UK | |
|---|---|---|---|
| Full fibre | 92.3% | 94% | 81% |
| Gigabit-capable | 95.7% | 94.9% | 87.8% |
| Superfast (30 Mbit/s+) | 99% | 98.6% | 97.7% |
| Can't get 10 Mbit/s | 0.2% | 0.5% | 0.7% |
Belfast ranks 52nd of 361 UK council areas for full fibre coverage (see all).
Average across each district's postcodes. Tap a column to sort.
| BT1 | 67% | 80% | 1.5% | 350 |
|---|---|---|---|---|
| BT2 | 83% | 91% | 0% | 93 |
| BT3 | 57% | 82% | 13.4% | 79 |
| BT4 | 93% | 98% | 0.6% | 620 |
| BT5 | 96% | 99% | 0% | 837 |
| BT6 | 97% | 100% | 0% | 557 |
| BT7 | 91% | 96% | 0.6% | 388 |
| BT8 | 93% | 99% | 0% | 636 |
| BT9 | 94% | 99% | 0.5% | 572 |
| BT10 | 97% | 100% | 0.1% | 202 |
| BT11 | 97% | 100% | 0% | 464 |
| BT12 | 91% | 98% | 0.7% | 617 |
| BT13 | 95% | 98% | 0.6% | 561 |
| BT14 | 97% | 99% | 0.1% | 628 |
| BT15 | 94% | 99% | 0.8% | 602 |
| BT16 | 97% | 99% | 0.3% | 391 |
| BT17 | 95% | 100% | 0% | 558 |
| BT18 | 91% | 100% | 0% | 361 |
| BT36 | 97% | 100% | 0% | 1026 |
92.3% of premises in Belfast could order full fibre in January 2026, and 95.7% could get gigabit speeds (full fibre or cable). Coverage varies street by street, so check your postcode.
Full fibre coverage in Belfast went from 91.2% in January 2025 to 92.3% in January 2026: 1,986 more premises.
427 premises in Belfast (0.2%) can't get 10 Mbit/s download speeds from a fixed line, and 3 can't get what Ofcom calls decent broadband from a fixed line or fixed wireless.
About 47% of premises that can get full fibre in Belfast have taken it up. The rest are still on older copper or cable lines, often paying similar prices for slower speeds.
Of the 19 postcode districts we cover for Belfast, BT10 has the most gigabit coverage (97% on average) and BT3 the least (57%).
100% of premises in Belfast have outdoor 5G coverage from at least one mobile network (Ofcom, high-confidence predictions, January 2026). 4G indoors from all four networks reaches 95.4%.