As of October 7, 2026, Shifter has the largest pool of live US IPs, more than Oxylabs and Bright Data, at a fraction of the cost.Shifter now has the largest pool of live US IPs

See benchmarks
Start Free TrialLog In

Glossary

What Is an ISP Proxy?

An ISP proxy is a residential proxy whose IP address is registered to a real Internet Service Provider and served from managed infrastructure, so it carries residential trust while staying tied to one ISP and location.

Understand how ISP proxies work, why an ISP-registered IP carries residential trust, and when to pick them over rotating residential proxies.

Explained

An ISP proxy combines two properties operators want: an IP address registered to a real ISP, so it carries residential-grade trust with anti-bot systems, and managed hosting, so it stays online and tied to the same network. The provider partners with consumer ISPs to obtain IPs registered under the ISP's name and serves them from its own infrastructure.

To the destination site, an ISP proxy looks like a home connection on that ISP. Unlike rotating residential proxies, which hand out a fresh IP per request from a large pool, an ISP proxy stays on one ISP and in one location for as long as you keep it. Some providers pin a single static IP; others, including Shifter, keep the city and ISP (ASN) fixed while the address refreshes over time the way a real home connection does, which looks more natural than an address that never changes.

This makes ISP proxies the preferred choice for workflows that need a stable location and network: managing multiple accounts on the same platform, bots that keep login state, scraping behind authentication, and ad checks from a specific city and ISP.

How It Works

When you connect through an ISP proxy, your traffic exits through an IP address that's registered with a real consumer ISP (Comcast, AT&T, Verizon Business, etc.) and served from the proxy provider's infrastructure. The destination site does an ASN lookup on the IP, sees a consumer-ISP record, and treats your request as residential traffic.

Because the proxy stays on the same ISP and in the same location, sessions, cookies and location-bound state stay consistent across requests. Operators typically assign one ISP proxy per account or per workflow they want to keep clean.

Types

Dedicated ISP Proxies

A specific ISP-registered IP assigned to a single user. Highest trust score and zero risk of another user burning the IP through bad behavior. Most common configuration for account management and authenticated scraping.

Shared ISP Proxies

An ISP-registered IP shared across a small number of users. Cheaper per IP but carries some risk that another user's behavior affects the IP's trust profile.

Sneaker / Limited-Edition Drop ISP Proxies

ISP proxies used for sneaker and limited-edition checkout flows, where consumer-ISP registration and a consistent location are both required.

Common Use Cases

Multi-account management on the same platform
Authenticated scraping (logged-in sessions)
Sneaker bots and limited-drop checkouts
Long-running sessions that must survive across requests
E-commerce and social-media account automation
Any workflow where rotating IPs would break the flow
FAQ

Frequently asked questions

Common questions about isp proxy.

ISP proxies are a type of residential proxy. The difference is that an ISP proxy is served from the provider's infrastructure but registered with a real ISP, while a rotating residential proxy routes through a real consumer device. Both look like residential traffic to anti-bot systems; ISP proxies keep one ISP and location, rotating residential proxies change IP across a large pool.

Use ISP proxies when you need a stable location and network across requests, like managing logged-in accounts, running checkout flows, or scraping behind authentication. Use residential proxies when you need fresh IPs per request to distribute load across the pool, like high-volume web scraping where each request is independent.

Shifter offers ISP proxies in 120 countries, 1,800+ cities and 900+ ISPs (ASNs). After you purchase a plan, you choose the city and ISP for each IP, and every proxy stays in that city and on that ISP for the whole billing period. Pick a handful for account management or larger pools for higher-volume workflows.

Yes. You can rotate across a pool of ISP proxies manually or programmatically, but the typical use case is to assign one ISP proxy per account or workflow and keep it on the same city and ISP for that workflow's lifetime.

Yes, ISP proxies are legal. The legality of any proxy depends on what you do with it, not on the proxy type itself. Shifter's ISP proxies are sourced through legitimate ISP partnerships and are widely used for compliant business workflows like account management and competitive intelligence.