Belfast ISPs

Belfast residents have run speed tests on 10 providers. This number is 68.63% above the United Kingdom average of 5.93 providers. ISPs available in Belfast include Sky Broadband, BT, and Virgin Media. The most common provider in Belfast is Sky Broadband, with a maximum recorded speed of 70.49 Mbps, and the typical home user seeing speeds in the range of 9.92—37.24 Mbps. Belfast's fastest provider is Virgin Media, and the highest speed we've seen from them is 506.13 Mbps. Overall, the average real-world speed users will see in Belfast is 17.05 Mbps, which is 33.73% below the The United Kingdom national average of 25.73 Mbps, and 0.58% below the average of 17.15 Mbps in Belfast. Internet speeds in Belfast are typically faster than Ardoyne, but slower than Belfast City Centre. Nearby cities include Belfast City Centre with speeds 11.39—52.45 Mbps, and Springfield with speeds 0.58—10.83 Mbps.


  • Virgin Media in Belfast
  • CIX in Belfast
  • BT in Belfast
  • TalkTalk in Belfast
  • Vodafone in Belfast
  • Sky Broadband in Belfast
  • EE in Belfast
  • Post Office Broadband in Belfast
  • KCOM in Belfast
  • Plusnet in Belfast

Internet in Belfast


Fastest city in The United Kingdom


Best speed range city in Belfast

506.13 Mbps

Belfast's fastest speed

13.55—52.56 Mbps

Typical speed range available to Belfast residents

Belfast Competitive Speed Map

How Belfast Compares to Major Cities

City / TownMax SpeedTypical Speed Range50% 
London3385.49 Mbps22.04—73.62 Mbps33.16 MbpsFaster
Birmingham931.57 Mbps16.56—70.41 Mbps25.86 MbpsFaster
Liverpool912.85 Mbps13.04—55.15 Mbps19.06 MbpsFaster
Nottingham834.74 Mbps15.08—62.46 Mbps22.67 MbpsFaster
Sheffield815.42 Mbps13.66—47.39 Mbps19.5 MbpsFaster
Bristol902.73 Mbps16.58—73.38 Mbps25.04 MbpsFaster
Leicester910.64 Mbps16.51—70.27 Mbps24.57 MbpsFaster
Edinburgh870.81 Mbps15.38—87.11 Mbps25.23 MbpsFaster
Belfast506.13 Mbps13.55—52.56 Mbps17.05 Mbps-
Glasgow898.7 Mbps8.31—40.9 Mbps11.88 MbpsSlower

Cities and Provider Speeds in Belfast

PositionCityMax SpeedTypical Speed Range50%# Providers
1Andersonstown532.9 Mbps14.25—65.22 Mbps21.6 Mbps6
2Dunmurry755.04 Mbps13.5—49.13 Mbps20.86 Mbps8
3Belfast City Centre883.15 Mbps11.39—52.45 Mbps17.15 Mbps11
4Belfast506.13 Mbps13.55—52.56 Mbps17.05 Mbps10
5Ardoyne755.14 Mbps9.5—35.06 Mbps13.78 Mbps7

Belfast Over Time

How Belfast Compares for Internet Speed in Belfast

PositionCity / TownMax SpeedTypical Speed Range50% 
4Castlereagh280.19 Mbps13.43—53.29 Mbps17.73 MbpsFaster
5Belfast City Centre883.15 Mbps11.39—52.45 Mbps17.15 MbpsFaster
6Belfast506.13 Mbps13.55—52.56 Mbps17.05 Mbps-
7Ardoyne755.14 Mbps9.5—35.06 Mbps13.78 MbpsSlower
8Springfield234.17 Mbps0.58—10.83 Mbps7.2 MbpsSlower

Belfast Speed Test Results

We analysed the results of people in Belfast test providers multiple times, with each test starting no more than 30 minutes after the previous speed test. On average, people in Belfast ran 3 speed tests per session. Looking at download speeds, if the Belfast resident's final test is 10% faster than their starting download speed, we count that as a succesful and faster speed test result. We count an unsuccessful, slower result if the final result is 10% slower than the starting result; we'd hope their ISP contacts them ASAP! For speed tests that don't vary by that much, we consider the final result to be the same. For Belfast's residents, of the speed tests we measured, 42.8% were fast, 31.78% slow, and 25.42% broadly the same.
Most Recent Tests
ProviderStart Time# TestsDurationStart SpeedEnd SpeedStatus
Virgin Media24 Sep 2020 21:04:13525 mins60.49 Mbps162.63 MbpsImproved
BT24 Sep 2020 20:18:42238 secs23.35 Mbps6.62 MbpsNeeds help, very slow
Virgin Media24 Sep 2020 19:52:0037 mins13.14 Mbps72.56 MbpsImproved
Virgin Media24 Sep 2020 18:44:25230 secs27.91 Mbps32.77 MbpsImproved
Sky Broadband24 Sep 2020 18:34:043106 secs60.28 Mbps51.86 MbpsNeeds help
Virgin Media24 Sep 2020 17:01:09290 secs106.92 Mbps106.65 Mbps
Sky Broadband24 Sep 2020 15:03:02230 secs13.58 Mbps14.3 Mbps
Sky Broadband24 Sep 2020 13:46:04232 secs23.79 Mbps25.92 Mbps
Sky Broadband24 Sep 2020 13:32:53236 secs44.53 Mbps53.78 MbpsImproved
Sky Broadband24 Sep 2020 11:53:3325 mins66.48 Mbps60.65 Mbps
BT24 Sep 2020 11:29:17222 mins4.51 Mbps4.35 MbpsNeeds help, very slow
Sky Broadband24 Sep 2020 11:09:4954 mins15.3 Mbps13.4 MbpsNeeds help
Sky Broadband24 Sep 2020 01:22:53235 secs11.61 Mbps12.01 Mbps
Sky Broadband23 Sep 2020 21:25:1837 mins11.24 Mbps15.75 MbpsImproved
Virgin Media23 Sep 2020 19:16:12223 mins109.51 Mbps109.06 Mbps
BT23 Sep 2020 18:59:343109 secs6.35 Mbps11.57 MbpsImproved
Virgin Media23 Sep 2020 19:00:22349 secs105.09 Mbps56.02 MbpsNeeds help
Sky Broadband23 Sep 2020 17:33:1528 mins0.03 Mbps25.5 MbpsImproved
Sky Broadband23 Sep 2020 15:17:51424 mins6 Mbps37.6 MbpsImproved
Sky Broadband23 Sep 2020 15:30:442110 secs26.07 Mbps24.75 Mbps

Summary of Internet Service Providers in Belfast

#Provider NameMax SpeedTypical Speed Range
1CIX179.46 Mbps5.18—100.91 Mbps
2Virgin Media506.13 Mbps36.84—108.91 Mbps
3BT498.4 Mbps14.85—54.43 Mbps
4TalkTalk71.47 Mbps13.36—44.98 Mbps
5Vodafone143.78 Mbps13.29—35.82 Mbps
6Sky Broadband70.49 Mbps9.92—37.24 Mbps
7EE67.42 Mbps3.8—35.42 Mbps
8KCOM70.66 Mbps5.08—21.22 Mbps
9Post Office Broadband41.21 Mbps4.34—27.54 Mbps
10Plusnet68.02 Mbps4.44—14.97 Mbps

Frequently Asked Questions about Internet Providers in Belfast

Belfast has 10 ISPs tested by its 274,770 residents.
Virgin Media is the fastest provider in Belfast with 506.13 Mbps, and an average speed range of 36.84—108.91 Mbps.
The best provider in Belfast in Virgin Media, and their users typically see speeds in the range of 36.84 to 108.91 Mbps.
Users in Belfast see an average internet speed of 13.55 up to 1004 Mbps, and the fastest speed we've seen is 506.13 Mbps.
Sky Broadband is available in Belfast, and the fastest speed we've seen from them is 70.49 Mbps.
BT is available in Belfast, and the fastest speed we've seen from them is 498.4 Mbps.
Virgin Media is available in Belfast, and the fastest speed we've seen from them is 506.13 Mbps.
The provider with the most users in Belfast is Sky Broadband.

Last updated: 24 Sep 2020