> For the complete documentation index, see [llms.txt](https://doc.9http.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.9http.com/en/proxies/long-acting-static-isp.md).

# Long Acting Static ISP

Long Acting Static ISP is a fixed IP address that does not change. Unlike dynamic IP addresses, a Long Acting ISP address remains the same after being assigned to a device (such as a computer, server, or router) — it does not change over time. Long Acting ISP addresses are typically assigned by a network administrator or Internet Service Provider (ISP), and the address remains unchanged even after the device restarts or disconnects.

**Characteristics of Long Acting Static ISP:**

1. **Fixed:** Once assigned to a device, a Long Acting ISP address does not change automatically unless manually modified by a network administrator.
2. **Stability:** Since the address remains constant, Long Acting Static ISP is suited for services requiring long-term stable communication, such as website servers and mail servers.
3. **Simplified Management:** For devices requiring remote access, a static IP simplifies network configuration and management — for example, setting firewall rules or configuring domain name resolution.
4. **Configuration Required:** Long Acting Static ISP requires manual configuration by a network administrator, typically obtained through the ISP or set up locally by an administrator.

9HTTP provides 24/7 technical support. For any questions or assistance, contact us at **<support@9http.com>**.