B · Infrastructure · Proxies & IP Infrastructure
ISP Proxies
ISP proxies are static IPs registered to consumer or business ISPs but hosted on datacenter servers, combining a residential ASN with datacenter speed and uptime. Because each IP stays the same for weeks or months, the quality of the specific addresses matters: check which ISPs and ASNs they belong to, subnet diversity, prior usage and the terms for replacing a flagged IP.
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Buyer guide
- Look up the ASN of sample IPs to confirm they are registered to an ISP rather than a hosting provider.
- Ask how many IPs share a subnet; diverse subnets reduce the impact of one range being rate-limited.
- Confirm the lease period, renewal terms and whether you keep the same IPs on renewal.
- Check how quickly and how often IPs can be replaced if one performs poorly.
What to compare
- 01ISP and ASN registration
- 02Subnet diversity
- 03Static IP lease period
- 04Unlimited vs metered bandwidth
- 05Available countries and cities
- 06IP replacement terms
Use cases
- Long-lived sessions on authorized accounts
- Ecommerce price monitoring
- Stable geo testing environments
FAQ
What makes a proxy an ISP proxy rather than datacenter?
The IP range is registered to an internet service provider instead of a hosting company, even though the server sits in a datacenter. You can confirm this with an ASN lookup.
How long do ISP proxy IPs stay assigned?
They are static for the lease period, commonly monthly, and usually renew on the same addresses. The listing's transfer and renewal terms state what applies.
When is a rotating residential pool a better fit than ISP proxies?
When you need broad geographic spread or many distinct IPs per task. ISP proxies suit fewer, stable identities; rotating residential suits breadth.