Data Source: FCC Forms 499 filed with the Universal Service Administrative Company (USAC) as of Apr. 21, 2026. For more information on filing the Form 499 or to correct previously filed information, visit the USAC website or contact USAC at 888-641-8722.
The HTTP 499 status code, known as “Client Closed Request,” is an error that occurs when a client—typically a web browser or API client—closes the connection before the server finishes processing the request.
How to Fix HTTP 499 Status Code “Client Closed Request” - Codeless
Ever encountered a mysterious HTTP 499 response code? This guide explains what it means, why happens, how to troubleshoot it and how Apidog helps.
To understand the 499 status code, we first need to recognize that it doesn’t belong to the standard HTTP status codes outlined by the Internet Engineering Task Force (IETF). Instead, it’s a non-standard, server-specific code introduced by Nginx, one of the most popular web servers globally.
What is HTTP 499 Status Code and How to Fix it? - Scrapfly Blog
A 499 status code — officially logged as “499 Client Closed Request” — is a non-standard HTTP code used by the nginx web server. It indicates that the client closed the connection before the server could send a response.
Learn how to easily fix the HTTP 499 error, which is also known as a "client closed request," using 5 potential solutions.
How To Fix the HTTP 499 Error (5 Potential Solutions) - Kinsta
The 499 HTTP code is not a particularly common error but it can prevent you from accessing your website. The good news is that the error typically has more to do with the user rather than the server, which makes it easier to troubleshoot.