ISP vs Datacenter Proxies: Which Static IPs Should You Buy?

ISP proxies and datacenter proxies look alike from the outside. Both are static IPs hosted on servers, both are fast, and both arrive as a list of addresses you plug into your tools. The difference is who the IP is registered to. An ISP proxy uses an address that belongs to a consumer internet provider, while a datacenter proxy uses an address that belongs to a hosting company, and websites can tell the two apart.

This guide compares ISP, shared datacenter and dedicated datacenter proxies on trust, speed, exclusivity, bandwidth and cost, then shows which one fits each job.

The difference: who the IP is registered to

Every IP address belongs to a network block, and every block is registered to an organization through its ASN. IP intelligence services label those blocks by type. A block registered to a cable or fiber provider reads as consumer broadband; a block registered to a cloud or hosting company reads as a data center.

• ISP proxies, also called static residential proxies, use addresses from consumer ISP ranges, hosted on servers in data centers. The target sees a home provider, while you get server speed and an address that does not change.
• Datacenter proxies use addresses from hosting ranges. They are the fastest and cheapest proxies per request, but any site that checks the ASN knows the traffic comes from a server.

Datacenter proxies come in two flavors: shared, where a large pool of IPs is used by several customers, and dedicated, where each IP is reserved for one account.

ISP vs datacenter proxies at a glance

Trust, speed and exclusivity

Trust is where ISP proxies earn their price. Bot management systems often challenge or block traffic from hosting ASNs on sign-up, login and checkout pages, because real customers rarely browse from a server. An address from a consumer provider passes that first check, which is why ISP proxies are common for managing marketplace and social accounts, and for any flow where one stable, trusted IP matters. If you want the background, read what an ISP proxy is.

Speed is close between the two, because both run on server infrastructure rather than on home connections. Datacenter IPs usually answer fastest, with typical responses under half a second, which makes them a strong fit for APIs, uptime checks and bulk collection on lightly protected sites.

Exclusivity decides how much the history of an IP depends on you. A shared datacenter pool spreads many customers over many IPs, which is cheap and fine for rotation, but another user can burn an address on a target you also use. Dedicated datacenter IPs and ISP proxies are private to your account, so their reputation depends only on your own traffic.

What each option costs, with real numbers

The three products are billed differently, so compare them on the job you have in mind:

• 50 account IPs for a month. 50 ISP proxies for 30 days cost $76.72, or $1.53 per IP. 50 dedicated datacenter IPs cost $63 a month, or $1.26 per IP. The ISP option costs a little more and passes far more trust checks.
• A large rotation pool. 1,000 shared datacenter IPs with 250 GB of monthly bandwidth cost $17.50 a month. Spreading requests across a pack keeps each IP well below the rate limits of a target.
• Scale. At the largest packs, prices drop to $1.15/IP per ISP IP, $0.013/IP per shared datacenter IP and $0.70/IP per dedicated IP.

Every tier and term is listed on the pricing page. When a target blocks datacenter ranges entirely, rotating residential IPs are usually the next step; residential vs datacenter proxies walks through that choice.

Which one should you choose?

Choose ISP proxies when the target judges IP reputation and you need one address per account or per long session: social and marketplace accounts, logged-in monitoring, checkout flows. Choose shared datacenter proxies when the target tolerates servers and cost per request matters most: public APIs, documentation, catalogs and monitoring at moderate rates. Choose dedicated datacenter IPs when you want server speed with addresses nobody else touches, for scrapers and automations that run every day on the same sites.

If you are unsure, start small: 5 ISP IPs and a 1,000-IP shared datacenter pack are enough to measure success rates on your own targets before you commit to a larger plan. Plans with minimal usage can be refunded to your balance within 3 days.

All three arrive as ip:port lists, from the dashboard or the API. ISP and dedicated IPs come with a username and password per line; shared datacenter packs accept a whitelist of your server IPs or credentials, with HTTP on port 3129 and SOCKS5 on port 1081.

Mistakes to avoid with static proxies

• Running accounts on shared datacenter IPs. Another customer can get an address flagged on the very platform you log in to, and hosting ranges already start with less trust. Accounts belong on private IPs.
• Rotating static IPs too fast. An account that jumps between addresses every few minutes looks stranger than one that keeps the same IP. Assign one IP per account and keep it for the whole term.
• Mixing countries. An account created from a German IP that suddenly logs in from Japan triggers checks. Pick the location of the account and stay there.
• Treating unmetered as unlimited speed. ISP and dedicated IPs carry no GB meter, but fair use still applies: on ISP proxies, connections that stay above about 100 Mbps for long periods may be throttled. Spread heavy transfers over several IPs.
• Letting a plan lapse by accident. Plans never renew on their own, so renew before the end of the term if you want to keep the same addresses.

Key takeaways

• ISP and datacenter proxies are both static and fast; the ASN that owns the IP is what sets them apart.
• ISP proxies pass reputation checks that datacenter ranges often fail, which makes them the static IP of choice for accounts.
• Shared datacenter IPs give you the lowest cost per request on targets that do not block servers.
• Dedicated datacenter IPs sit in between: server speed, private addresses, monthly billing.