BT12 postcode area guide — Belfast
House prices, crime, broadband speeds, mobile signal, schools and demographics for the BT12 postcode district in Belfast — every official dataset on one page.
Check any UK postcode
Where is BT12?
Broadband & internet speeds in BT12
Excellent coverage
Superfast (30Mb+)
98.2%
Ultrafast (300Mb+)
91.4%
Gigabit-capable
91.4%
Below USO (10Mb)
0%
Broadband availability in the BT12 postcode district (Belfast) is Excellent — gigabit-capable full fibre is widely available. Across the 616 postcodes Ofcom measures in BT12, superfast broadband (30 Mbit/s or faster) reaches 98.2% of premises and gigabit-capable lines are available to 91.4%.
Around 0% of premises in BT12 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 BT12
| Postcode | Superfast | Gigabit |
|---|---|---|
| BT12 4AA | 100% | 77.9% |
| BT12 4AD | 100% | 100% |
| BT12 4AE | 100% | 100% |
| BT12 4AF | 100% | 38.9% |
| BT12 4AG | 100% | 100% |
| BT12 4AH | 100% | 100% |
| BT12 4AL | 100% | 100% |
| BT12 4AP | 100% | 42.9% |
| BT12 4AQ | 100% | 100% |
| BT12 4AS | 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 BT12
Police recorded 705 incidents within about a mile of the centre of BT12 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 227 | 32.2% |
| Violence & sexual offences | 225 | 31.9% |
| Criminal damage & arson | 62 | 8.8% |
| Other theft | 51 | 7.2% |
| Drugs | 39 | 5.5% |
| Shoplifting | 37 | 5.2% |
| Vehicle crime | 18 | 2.6% |
| Burglary | 15 | 2.1% |
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 BT12
328 rated food businesses operate in BT12. 198 hold the top rating of 5, 48 are rated 4, and 12 are rated 2 or below.
Among the 5-rated: Aldos, All Saints College, Allegro Limited, Alti Garron Court, Amelia's Kitchen.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Phone area codes for Belfast
Landlines around BT12 typically use:
Had a call from an unknown number? Use our free UK phone number checker to see who called.
What's it like living in BT12?
Be the first to rate BT12 (Belfast).
How would you rate living in BT12 (Belfast)?
Moving to BT12? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Belfast — free, no-obligation quote.
Postcodes in BT12
Neighbouring districts
All Belfast (BT) postcode districts ›
Frequently asked questions
Where is the BT12 postcode?
Is BT12 a safe area?
What broadband can I get in BT12?
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.