The short answer
- Static IP: permanently assigned. Servers, businesses and ISP proxies use them.
- Dynamic IP: handed out by your ISP and can change after a router restart, a lease expiry, or at the ISP's whim. Most home and mobile connections are dynamic.
Why it matters
Because home IPs naturally change, websites are used to seeing a household on a new IP, which helps rotating residential proxies blend in. If you need the same IP for weeks, for an account or allowlist, buy a static ISP or dedicated proxy.

Also known as
Fixed IP vs changing IP, permanent IP vs DHCP-assigned IP.
Learn more
- Static residential proxies
- Rotating residential proxies
- What is a public IP address?
- ISP proxies
- What an internet service provider is
- RFC 791, IPv4
- RFC 6598, carrier shared address space
- The Internet Society's IPv6 resources
Affiliate disclosure: Team of Monkeys is an affiliate of Geonode, Webshare and Rayobyte. Links and banners marked as sponsored, and links to Geonode, Webshare and Rayobyte in the text, use our referral links, and we may earn a commission if you buy through them, at no extra cost to you. Our explanations and comparisons are written to be useful whichever provider you choose.
Editorial note: Proxy providers change their pools, features and prices often, so treat any figures here as typical ranges at the time of writing and confirm current terms with the provider before you buy.
Editorial note: Proxy providers change their pools, features and prices often, so treat any figures here as typical ranges at the time of writing and confirm current terms with the provider before you buy.