Belfast ISPs

Belfast residents have run speed tests on 9 providers. This number is 56.25% above the United Kingdom average of 5.76 providers. ISPs available in Belfast include Sky Broadband, Vodafone, and BT. The most common provider in Belfast is Sky Broadband, with a maximum recorded speed of 69.48 Mbps, and the typical home user seeing speeds in the range of 11.54—27.88 Mbps. Belfast's fastest provider is BT, and the highest speed we've seen from them is 301.72 Mbps. Overall, the average real-world speed users will see in Belfast is 13.08 Mbps, which is 43.43% below the The United Kingdom national average of 23.12 Mbps, and 17.11% below the average of 15.78 Mbps in Belfast. Internet speeds in Belfast are typically faster than Springfield, but slower than Ardoyne. Nearby cities include Belfast City Centre with speeds 10.52—48.69 Mbps, Cathedral's Quarter with speeds 74.95—75.35 Mbps, and Springfield with speeds 7.2—9.78 Mbps.


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

Internet in Belfast


Fastest city in The United Kingdom


Best speed range city in Belfast

301.72 Mbps

Belfast's fastest speed

8.56—31.92 Mbps

Typical speed range available to Belfast residents

How Belfast Compares to Major Cities

City / TownMax SpeedTypical Speed Range50% 
London943.62 Mbps19.11—72.16 Mbps30.28 MbpsFaster
Birmingham931.57 Mbps15.34—67.39 Mbps23.88 MbpsFaster
Liverpool912.85 Mbps11.85—49.86 Mbps17.11 MbpsFaster
Nottingham834.74 Mbps14.09—60.47 Mbps21.25 MbpsFaster
Sheffield815.42 Mbps12.53—44.56 Mbps18.29 MbpsFaster
Bristol902.73 Mbps14.96—67.75 Mbps22.48 MbpsFaster
Leicester910.64 Mbps15.04—63.76 Mbps21.91 MbpsFaster
Edinburgh870.81 Mbps13.41—71.94 Mbps21.13 MbpsFaster
Belfast301.72 Mbps8.56—31.92 Mbps13.08 Mbps-
Glasgow795.31 Mbps7.63—36.05 Mbps10.83 MbpsSlower

Cities and Provider Speeds in Belfast

PositionCityMax SpeedTypical Speed Range50%# Providers
1Dunmurry755.04 Mbps13.11—49.57 Mbps20.71 Mbps6
2Andersonstown457.08 Mbps12.95—56.56 Mbps18.72 Mbps6
3Belfast City Centre836.99 Mbps10.52—48.69 Mbps15.75 Mbps11
4Ardoyne755.14 Mbps9.36—32.85 Mbps13.14 Mbps7
5Belfast301.72 Mbps8.56—31.92 Mbps13.08 Mbps9

Belfast Over Time

How Belfast Compares for Internet Speed in Belfast

PositionCity / TownMax SpeedTypical Speed Range50% 
6Belfast City Centre836.99 Mbps10.52—48.69 Mbps15.75 MbpsFaster
7Ardoyne755.14 Mbps9.36—32.85 Mbps13.14 MbpsFaster
8Belfast301.72 Mbps8.56—31.92 Mbps13.08 Mbps-
9Springfield17.39 Mbps7.2—9.78 Mbps7.63 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, 39.59% were fast, 35.1% slow, and 25.31% broadly the same.
Most Recent Tests
ProviderStart Time# TestsDurationStart SpeedEnd SpeedStatus
BT03 Jul 2020 19:33:18224 mins284.48 Mbps301.72 Mbps
Vodafone03 Jul 2020 19:53:3422 mins15.96 Mbps9.05 MbpsNeeds help, very slow
TalkTalk03 Jul 2020 12:40:122109 secs17.6 Mbps34.18 MbpsImproved
TalkTalk26 Jun 2020 20:06:51226 secs34.06 Mbps29.08 MbpsNeeds help
BT22 Jun 2020 14:59:4633 mins9.57 Mbps14.74 MbpsImproved
Sky Broadband21 Jun 2020 19:37:39237 secs17.07 Mbps13.44 MbpsNeeds help
Sky Broadband21 Jun 2020 17:43:47562 mins44.79 Mbps40.92 Mbps
Sky Broadband21 Jun 2020 11:52:23222 secs17.66 Mbps7.13 MbpsNeeds help, very slow
TalkTalk21 Jun 2020 07:31:45225 secs37.99 Mbps33.64 MbpsNeeds help
Sky Broadband20 Jun 2020 15:27:52252 secs1.29 Mbps1.26 MbpsNeeds help, very slow
TalkTalk19 Jun 2020 19:17:5345 mins31.12 Mbps18.1 MbpsNeeds help
TalkTalk19 Jun 2020 19:13:05243 secs15.93 Mbps7.94 MbpsNeeds help, very slow
Vodafone19 Jun 2020 12:08:5422 mins0.12 Mbps18.62 MbpsImproved
Sky Broadband18 Jun 2020 17:55:45235 secs34.81 Mbps40.1 MbpsImproved
KCOM18 Jun 2020 15:32:15268 secs0.2 Mbps0.32 MbpsNeeds help, very slow
Vodafone18 Jun 2020 07:08:14394 secs38.55 Mbps39.09 Mbps
Vodafone18 Jun 2020 05:24:49239 secs23.26 Mbps22.64 Mbps
Sky Broadband17 Jun 2020 17:54:34258 secs30.48 Mbps26.31 MbpsNeeds help
Sky Broadband17 Jun 2020 17:29:37515 mins20.09 Mbps24.22 MbpsImproved
Sky Broadband17 Jun 2020 17:33:59232 secs14.5 Mbps16.03 MbpsImproved

Summary of Internet Service Providers in Belfast

#Provider NameMax SpeedTypical Speed Range
1CIX179.46 Mbps0—100.91 Mbps
2BT301.72 Mbps5.21—39.58 Mbps
3Vodafone143.78 Mbps10.83—37.91 Mbps
4TalkTalk69.64 Mbps10.15—32.49 Mbps
5Sky Broadband69.48 Mbps11.54—27.88 Mbps
6Post Office Broadband41.21 Mbps4.34—27.54 Mbps
7KCOM70.66 Mbps5.03—19.87 Mbps
8Plusnet60.32 Mbps2.98—12.29 Mbps
9EE27.78 Mbps0.58—14.99 Mbps

Frequently Asked Questions about Internet Providers in Belfast

Belfast has 9 ISPs tested by its 274,770 residents.
BT is the fastest provider in Belfast with 301.72 Mbps, and an average speed range of 5.21—39.58 Mbps.
The best provider in Belfast in CIX, and their users typically see speeds in the range of 0 to 100.91 Mbps.
Users in Belfast see an average internet speed of 8.56 up to 2423 Mbps, and the fastest speed we've seen is 301.72 Mbps.
Sky Broadband is available in Belfast, and the fastest speed we've seen from them is 69.48 Mbps.
Vodafone is available in Belfast, and the fastest speed we've seen from them is 143.78 Mbps.
BT is available in Belfast, and the fastest speed we've seen from them is 301.72 Mbps.
The provider with the most users in Belfast is Sky Broadband.

Last updated: 03 Jul 2020