BT4 postcode area guide — Belfast
House prices, crime, broadband speeds, mobile signal, schools and demographics for the BT4 postcode district in Belfast — every official dataset on one page.
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Where is BT4?
Broadband & internet speeds in BT4
Excellent coverage
Superfast (30Mb+)
97.2%
Ultrafast (300Mb+)
93.1%
Gigabit-capable
93.1%
Below USO (10Mb)
0%
Broadband availability in the BT4 postcode district (Belfast) is Excellent — gigabit-capable full fibre is widely available. Across the 616 postcodes Ofcom measures in BT4, superfast broadband (30 Mbit/s or faster) reaches 97.2% of premises and gigabit-capable lines are available to 93.1%.
Around 0% of premises in BT4 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in BT4
| Postcode | Superfast | Gigabit |
|---|---|---|
| BT4 1AB | 100% | 100% |
| BT4 1AD | 100% | 100% |
| BT4 1AF | 92.6% | 91.2% |
| BT4 1AG | 95.2% | 95.2% |
| BT4 1AJ | 100% | 100% |
| BT4 1AL | 100% | 50% |
| BT4 1AN | 0% | 0% |
| BT4 1AQ | 90% | 90% |
| BT4 1AS | 100% | 100% |
| BT4 1AT | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Belfast
Ofcom's coverage model for the wider Belfast district (174,763 premises):
4G indoors — all networks
95.4%
4G outdoors — all networks
99.8%
5G outdoors — all networks
90.1%
Voice indoors — all networks
95.8%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in BT4
Police recorded 204 incidents within about a mile of the centre of BT4 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 71 | 34.8% |
| Violence & sexual offences | 62 | 30.4% |
| Criminal damage & arson | 18 | 8.8% |
| Shoplifting | 18 | 8.8% |
| Other theft | 15 | 7.4% |
| Drugs | 6 | 2.9% |
| Vehicle crime | 5 | 2.5% |
| Burglary | 3 | 1.5% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
Food hygiene ratings in BT4
243 rated food businesses operate in BT4. 164 hold the top rating of 5, 36 are rated 4, and 7 are rated 2 or below.
Among the 5-rated: Al Gelato, Aramark at NI Assembly, Parliament Buildings,, Arches Care Home, Arches Centre Canteen & Café, Ashfield Bed & Breakfast.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Phone area codes for Belfast
Landlines around BT4 typically use:
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What's it like living in BT4?
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Postcodes in BT4
Neighbouring districts
All Belfast (BT) postcode districts ›
Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.