Data Source: FCC Forms 499 filed with the Universal Service Administrative Company (USAC) as of Mar. 23, 2026. For more information on filing the Form 499 or to correct previously filed information, …

Mar 27, 2026 · 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 …

Jan 29, 2026 · Ever encountered a mysterious HTTP 499 response code? This guide explains what it means, why happens, how to troubleshoot it and how Apidog helps.

Aug 1, 2023 · The FCC Forms 499 must be received by USAC on or before the due dates to be considered filed on time. USAC is required to assess late filing penalties when a form is not filed …

Mar 9, 2026 · Learn how to easily fix the HTTP 499 error, which is also known as a "client closed request," using 5 potential solutions.

Apr 1, 2026 · Status code 499, often labeled as "Client Closed Request", indicates that the client (browser or API consumer) terminated the connection before the server could deliver its response.

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 …

Apr 16, 2024 · 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 …

Oct 15, 2025 · A 499 means the visitor left before your website finished responding. It isn’t an official web code, but servers like Nginx use it and call it “Client Closed Request.”

HTTP 499 in Nginx means that the client closed the connection before the server answered the request. In my experience is usually caused by client side timeout. As I know it's an Nginx specific error code. …