59 providers · 22 countries
Is it your provider, or is it you?
Pick your internet provider for its outage tools, the checks support will ask about, how to complain and where to escalate. Then let Kilobat find the failing link and collect the evidence.
- Free forever
- Pro $29 once
- 14-day refunds
- macOS 14+
- Open-source CLI
Most complained-about · last 30 days
- 1Comcast Xfinity404
- 2Spectrum370
- 3
AT&T285
- 4
Verizon222
- 5
T-Mobile161
- 6
Virgin Media125
- 7Rogers106
- 8EE82
- 9Starlink74
- 10
Vodafone63
Every provider
Find your internet provider
United Kingdom
United States
Australia
Italy
Spain
Netherlands
Switzerland
Finland
Ireland
Norway
Poland
South Korea
Sweden
Taiwan
Worldwide
No provider by that name yet. The complaint letter template works for any provider.
On every provider page
What you’ll find
Is it down?
The provider’s own outage map, app banner or text line, and how to see your public address on its router.
Is it them?
Wi-Fi against a cable, quiet hours against busy ones: the tests support asks for, in the order they ask.
Owed a credit?
18 providers have an outage-credit rule Kilobat checks your outages against, from Ofcom’s automatic compensation to Xfinity’s 24-hour credit.
Where next?
The formal complaint, then the regulator or ombudsman for that country, with the official sources.
If it isn’t fixed
Complaint routes by country
Kilobat Pro
Turn a bad month into a complaint they can investigate.
In Kilobat’s Health, click Report… and the Complaint tab takes you through four steps: the problem, your evidence, your request and a review. Then Kilobat Pro builds one PDF: a summary, a letter ready to send, your speed against your plan, every outage and the rule that applies, saved beside the evidence file it came from.


Find the failing link before you call.
brew install seifip/kilobat/kilobat