Broadband in Iserlohn

Iserlohn residents have run speed tests on 8 providers. This number is 162.30% above the Germany average of 3.05 providers. ISPs available in Iserlohn include Liberty Global, Deutsche Telekom, and Vodafone. The most common provider in Iserlohn is Liberty Global, with a maximum recorded speed of 834.69 Mbps, and the typical home user seeing speeds in the range of 51.25—279.33 Mbps. Iserlohn's fastest provider is also Liberty Global, and the highest speed we've seen from them is 834.69 Mbps. Overall, the average real-world speed users will see in Iserlohn is 47.87 Mbps, which is 67.96% above the Germany national average of 28.5 Mbps, and 57.36% above the average of 30.42 Mbps in Regierungsbezirk Arnsberg. Internet speeds in Iserlohn are typically faster than Stirpe, but slower than Worth. Nearby cities include Langenfeld with speeds 16.67—94.07 Mbps, and Hemer with speeds 35.26—233.27 Mbps.


  • 51.25—279.33
  • DOKOM Gesellschaft fur Telekommunikation
  • 14.09—60.52
  • 11.3—48.42
  • HeLi NET Telekommunikation
  • 0.12—37.61
  • 6.35—14.96
  • 0.8—1.3

Internet in Iserlohn


Fastest city in Germany


Best speed range city in Regierungsbezirk Arnsberg

834.69 Mbps

Iserlohn's fastest speed

31.35—223.56 Mbps

Typical speed range available to Iserlohn residents

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How Iserlohn Compares to Major Cities

City / TownMax SpeedTypical Speed Range50% 
Iserlohn834.69 Mbps31.35—223.56 Mbps47.87 Mbps-
Berlin928.33 Mbps15.94—68.82 Mbps26.61 MbpsSlower
Hamburg940.17 Mbps19.36—86.16 Mbps31.58 MbpsSlower
Munich919.95 Mbps31.26—95.16 Mbps45.71 MbpsSlower
Cologne3730.45 Mbps23.78—83.2 Mbps34.83 MbpsSlower
Frankfurt am Main947.57 Mbps28.52—160.86 Mbps44.07 MbpsSlower
Essen895.19 Mbps20.07—90.75 Mbps31.34 MbpsSlower
Stuttgart919.44 Mbps22.71—104.6 Mbps40.18 MbpsSlower
Dortmund917.11 Mbps28.2—121.12 Mbps40.6 MbpsSlower
Düsseldorf932.95 Mbps27.34—121.59 Mbps42.54 MbpsSlower

Iserlohn Over Time

How Iserlohn Compares for Internet Speed in Regierungsbezirk Arnsberg

PositionCity / TownMax SpeedTypical Speed Range50% 
17Arnsberg927.49 Mbps33.17—152.05 Mbps49.16 MbpsFaster
18Worth890.46 Mbps29.81—485.91 Mbps47.92 MbpsFaster
19Iserlohn834.69 Mbps31.35—223.56 Mbps47.87 Mbps-
20Stirpe62.29 Mbps47.2—48.03 Mbps47.42 MbpsSlower
21Hombruch236.24 Mbps26.32—100.64 Mbps45.65 MbpsSlower

Iserlohn Speed Test Results

We analysed the results of people in Iserlohn test providers multiple times, with each test starting no more than 30 minutes after the previous speed test. On average, people in Iserlohn ran 3 speed tests per session. Looking at download speeds, if the Iserlohn 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 Iserlohn's residents, of the speed tests we measured, 54.55% were fast, 9.09% slow, and 36.36% broadly the same.
Most Recent Tests
ProviderStart Time# TestsDurationStart SpeedEnd SpeedStatus
Liberty Global04 Mar 2021 19:34:10232 secs27.71 Mbps37.8 MbpsImproved
Deutsche Telekom04 Mar 2021 14:53:13218 mins14.87 Mbps18.82 MbpsImproved
Vodafone04 Mar 2021 14:59:31227 secs5.71 Mbps5.79 MbpsNeeds help, very slow
Vodafone04 Mar 2021 14:04:29218 mins8.32 Mbps8.42 MbpsNeeds help, very slow
Deutsche Telekom04 Mar 2021 10:36:32291 secs22.03 Mbps20.65 Mbps
Vodafone02 Mar 2021 20:18:14282 secs5.7 Mbps5.73 MbpsNeeds help, very slow
Liberty Global14 Feb 2021 08:26:21211 mins52.87 Mbps50.01 Mbps
Liberty Global14 Feb 2021 07:07:005100 secs25.88 Mbps31.22 MbpsImproved
Liberty Global13 Feb 2021 22:12:33412 mins2.31 Mbps27.2 MbpsImproved
Liberty Global13 Feb 2021 16:01:36232 secs13.23 Mbps26.82 MbpsImproved
Liberty Global12 Feb 2021 11:30:2326 mins5.3 Mbps47.05 MbpsImproved
Liberty Global11 Feb 2021 21:51:30250 secs158.25 Mbps189.62 MbpsImproved
Liberty Global10 Feb 2021 13:53:5132 mins48.44 Mbps49.97 Mbps
Telefonica Germany09 Feb 2021 11:30:012108 secs13.99 Mbps12.54 MbpsNeeds help
Liberty Global06 Feb 2021 09:43:16314 mins38.61 Mbps46.08 MbpsImproved
Deutsche Telekom05 Feb 2021 20:56:3865 mins1.3 Mbps160.52 MbpsImproved
Tele Columbus AG02 Feb 2021 20:47:3939 mins0.09 Mbps0.12 MbpsNeeds help, very slow
Deutsche Telekom02 Feb 2021 20:05:07359 secs4.03 Mbps138.26 MbpsImproved
Deutsche Telekom02 Feb 2021 18:41:2453 mins148.35 Mbps46.41 MbpsNeeds help
Deutsche Telekom02 Feb 2021 15:33:2434 mins0.81 Mbps2.47 MbpsNeeds help, very slow

Summary of Internet Service Providers in Iserlohn

#Provider NameMax SpeedTypical Speed Range
1Liberty Global834.69 Mbps51.25—279.33 Mbps
2Deutsche Telekom257.06 Mbps14.09—60.52 Mbps
3DOKOM Gesellschaft fur Telekommunikation213.03 Mbps35.07—46.29 Mbps
4HeLi NET Telekommunikation408.7 Mbps7.33—25.44 Mbps
5Telefonica Germany90.69 Mbps11.3—48.42 Mbps
6Tele Columbus AG55.08 Mbps0.12—37.61 Mbps
7Vodafone244.18 Mbps6.35—14.96 Mbps
8Plusnet65.46 Mbps0.8—1.3 Mbps

Frequently Asked Questions about Internet Providers in Iserlohn

Iserlohn has 8 ISPs tested by its 97,910 residents.
Liberty Global is the fastest provider in Iserlohn with 834.69 Mbps, and an average speed range of 51.25—279.33 Mbps.
The best provider in Iserlohn in Liberty Global, and their users typically see speeds in the range of 51.25 to 279.33 Mbps.
Users in Iserlohn see an average internet speed of 31.35 up to 266 Mbps, and the fastest speed we've seen is 834.69 Mbps.
Liberty Global is available in Iserlohn, and the fastest speed we've seen from them is 834.69 Mbps.
Deutsche Telekom is available in Iserlohn, and the fastest speed we've seen from them is 257.06 Mbps.
Vodafone is available in Iserlohn, and the fastest speed we've seen from them is 244.18 Mbps.
The provider with the most users in Iserlohn is Liberty Global.

Last updated: 04 Mar 2021