An ISP proxy, also sold as a static residential proxy, is one fixed IP on a home provider's network, run from a server. Websites that look up the IP's network see a home provider such as AT&T or Comcast. You get a server's uptime and one address that stays yours for the whole plan. On October 22, 2026, one dedicated ISP IP cost $2.50 to $3.99 a month at ten sellers, and about $3.13 at the median. We sell ISP proxies too, so weigh our view with that in mind.
What is an ISP proxy?
An ISP proxy is a single static IP address registered under a consumer internet provider and hosted on server hardware. To a website it looks like a home connection, because the network it belongs to is a home provider's. To you it behaves like a server: always on, fast and the same address every day. It is the proxy to use when a job needs residential trust and must not change IP.
Is a static residential proxy the same as an ISP proxy?
In most sellers' usage, yes. Webshare's help center opens with "Static Residential Proxies, also known as ISP Proxies". "ISP" names who the address belongs to, and "static residential" names how it behaves. Two things still differ from seller to seller:
- Whether the IP stays fixed. Most sellers pin one IP for the plan. Shifter keeps the city and network fixed while its ISP addresses refresh over time.
- Where the address comes from. IPOasis sells "Native" IPs registered to providers in the target country and cheaper "Broadcast" IPs announced through ISP partnerships.
Ask which one a seller means before you buy.
How does an ISP proxy get a home provider's name?
Every IP belongs to an autonomous system, a group of address blocks under one routing policy (RFC 1930). The system's public number, the ASN, names the network that owns the address. That lookup is the first thing a site can check.
An ISP proxy splits the two halves of an address. The ASN record names a home provider, while the machine answering your requests sits in a data center. Sellers describe two routes to that split. Some use address blocks registered to the provider itself, and some announce addresses through partnerships with providers. Shifter's glossary describes the partner model in one line. The seller, it says, "partners with consumer ISPs to obtain IPs registered under the ISP's name and serves them from its own infrastructure". Our glossary entry on IP leasing covers how address blocks change hands.
Oxylabs is candid about the server side: its static residential proxies "originate from datacenter proxies, therefore they are just as fast as their counterparts". A plain datacenter proxy shows its hosting company in the same lookup and fails it on defended sites.
Can a website tell it is an ISP proxy?
Sometimes. An ASN lookup shows the home provider, which is the point of the product. But a site can look at more than the ASN. Webshare's own help center answers "the most common question" it gets, why a checker tool shows "datacenter":
Tools that check the hosting environment may label the IP as "datacenter" or "hosting", because, technically, that's where the server is.
Your client gives you away too. A TLS fingerprint describes how your software opens a connection. Cloudflare's JA3 and JA4 documentation says these fingerprints "identify TLS clients based on how they initiate connections". A trusted IP carrying an automation library's fingerprint still looks like automation. Timing and headers count as well, and our guide to how websites detect proxies covers them.
Defenders know the product well. GeeTest, a bot-defense company, calls static residential proxies "a critical challenge for modern bot detection". A good ISP IP gets you past the first check, and your own behavior has to carry you past the rest.
What it gives you
A home provider's name
the ASN lookup shows an ISP
Server uptime
runs in a data center, always on
One fixed identity
the IP stays the same under a login
Unmetered traffic
some sellers cap fair use at 100 GB
What it costs you
One blast radius
flag the IP and all of it is flagged
Inherited history
the address had tenants before you
Hosting checks
some tools may label it datacenter
Monthly rent per IP
costly when you need many identities
Why does a login hold on an ISP proxy?
When you sign in, the site ties your session to a cookie and often to the IP the session started on. OWASP's session guidance recommends binding the session ID to "the client IP address". A change of IP in the middle of a session, it says, "is a very good indicator of session manipulation and hijacking attempts".
A rotating residential proxy changes the IP by design, per request or when a sticky window ends. Sellers' sticky windows default to 10 or 15 minutes and stretch to 24 hours at most. Our guide to sticky vs rotating proxy sessions has the details. An account you keep for weeks outlives any of them. An ISP proxy keeps one IP for the whole plan, so the site sees the same home provider's address every day. That is why account management, storefronts and logged-in bots run on static IPs.
ISP proxy or rotating residential?
Both read as residential to a site. They differ in what you hold and how you pay:
| ISP (static residential) | Rotating residential | |
|---|---|---|
| Network a site sees | A home provider | A home provider |
| Runs on | A server | Home devices |
| Your IP | One, fixed | New per request or session |
| Login over weeks | Holds | Breaks when the IP moves |
| After a ban | Replace the IP | The next request moves on |
| Priced | Per IP per month | Per GB of traffic |
Our page on rotating vs static residential proxies prices that choice at eight sellers. One static IP a month costs about as much as 1 GB of rotating traffic. Datacenter proxies, the third option, are compared in datacenter vs residential proxies.
How much does a static residential proxy cost?
We read ten sellers' own pricing pages on October 22, 2026, and took the smallest dedicated purchase for one month:
Three things move that price:
- Shared or dedicated. Shared static IPs cost far less: Decodo lists shared ISP IPs from $0.27, Evomi charges $1.00 and Bright Data $1.80, in packs of 10.
- Where the address comes from. IPOasis charges $5.49 for Native IPs against $3.99 for Broadcast ones, and Evomi charges $4.50 for "Virgin" IPs nobody has used.
- Pack sizes. Decodo sells at least 3 IPs, Proxyomega 5 and Bright Data 10.
"Unlimited" traffic has fine print too. MarsProxies, Fastproxy, IPOasis and Proxyomega list unmetered bandwidth, and Evomi says its static IP has "no data meter". Bright Data and ProxyEmpire cap fair use at 100 GB per IP a month. Oxylabs offers "unlimited bandwidth with fair usage" without a figure.
Our ISP proxies cost $2.70 a month for one dedicated static IP with unmetered traffic, on US and EU ranges. Per-IP plans are where our traffic is unmetered, and one balance, which never expires, pays for every product. The ISP price table also lists our rotating ISP pool, billed per gigabyte. For every proxy type side by side, see how much do proxies cost.
What are the catches?
One identity means one blast radius
A rotating pool shrugs off a ban, because the next request takes another IP. An ISP proxy is one address, so if it gets flagged, everything on it is flagged together. Keep one account, or one narrow purpose, per IP.
A static IP inherits its history
An ISP address had tenants before you, and per-IP defenses remember them. Check an IP before you build on it. Our proxy checker shows what a site sees when you connect through it. Our sister project FFraud runs a free IP abuse check.
"Static" and "unlimited" need reading
Some sellers refresh ISP addresses over time, and some cap "unlimited" traffic at 100 GB per IP a month. Read the plan terms before you put an account on an IP.
Do you need an ISP proxy?
Walk your job down this list and stop at the first match:
- Does anything log in and need to stay logged in past a sticky window? A static ISP proxy, one IP per account.
- Are you running accounts, a storefront or posts as one steady identity? An ISP proxy. Each account should come from one consistent address.
- Is it high-volume collection across many pages? Rotating residential. One static IP doing a pool's job gets itself banned.
- Does the target barely check (open data, most APIs)? A datacenter proxy, which is cheaper still.
- Both collection and accounts in one project? Split them: rotating residential for the crawling, ISP for the logins.
The common mistake is buying a rotating pool for account work because "residential" sounded right, then fighting logouts for a week. If a task has to be the same person tomorrow as today, it is an ISP job. Our guide to what a residential proxy is covers the rotating side in depth.
What this page could not check
- No performance data. We measured no speed, success rate or block rate, for any seller, ours included.
- How sellers get their addresses. We know only what each seller says about it.
- Ten sellers. Others draw their prices by script. Three sell packs only, and Shifter's refreshing addresses are left out of the chart.
- Check by January 22, 2027. Prices, caps and minimums change, so every number here needs a fresh read by then.
Sources
- Webshare, "What is a Static Residential Proxy (ISP Proxy)?", help center, updated June 17, 2026.
- IPOasis, static residential proxies page, read October 22, 2026.
- Shifter, "What Is an ISP Proxy?", glossary, read October 22, 2026.
- Oxylabs, static residential proxies product page and dedicated ISP pricing, read October 22, 2026.
- MarsProxies, Fastproxy, Decodo, Bright Data, ProxyEmpire, Evomi, Proxy Cheap and Proxyomega, ISP pricing pages, read October 22, 2026.
- OWASP, "Session Management Cheat Sheet", read October 22, 2026.
- Cloudflare, "JA3/JA4 fingerprint", bot management documentation, read October 22, 2026.
- IETF, RFC 1930, "Guidelines for creation, selection, and registration of an Autonomous System (AS)", March 1996.
- GeeTest, "What Is a Static Residential Proxy?", December 26, 2025.
- HProxy ISP product pages and price list, read October 22, 2026.
