# ISP proxy glossary: the terms behind a static US IP

> ISP proxy glossary: ASN, carrier hotel, internet exchange, dedicated vs shared, static vs rotating, /24 subnet, geolocation and allowlists, in plain words.

- URL: https://pinnedip.com/glossary/
- Last updated: 2026-10-19
- Publisher: PinnedIP (https://pinnedip.com)

The words vendors use, and what they mean when you rent a static ISP IP in the United States.

**Quick answer — What is an ISP proxy, in one sentence?**

An ISP proxy is a fixed IP address registered to a consumer internet provider, such as AT&T or Comcast, and hosted on a server in a data center; vendors also call it a static residential proxy. **PinnedIP** rents US ones from $2.03 per IP for 30 days (October 2026), no KYC.

## Terms A to Z

**Allowlist (IP allowlist)** — A list of IP addresses a system accepts. A partner can allowlist your proxy IP; we can allowlist your own IPs so you connect without a password.

**ASN (autonomous system number)** — The number of a network that announces IP blocks to the internet, such as AS7018 for AT&T. Lookups show the ASN and its holder. See [find an IP’s ISP and ASN](https://pinnedip.com/guides/check-ip-isp-asn/).

**Carrier hotel** — A building where many networks rent space and connect, such as 60 Hudson Street in New York or One Wilshire in Los Angeles. See [where ISP proxies are hosted](https://pinnedip.com/guides/where-isp-proxies-are-hosted/).

**Datacenter proxy** — A proxy whose IP is registered to a hosting or cloud company. See [ISP vs datacenter](https://pinnedip.com/compare/isp-vs-datacenter-proxies/).

**Dedicated proxy** — An IP used by one customer at a time for the rental. It does not mean the IP was never used before.

**Geolocation** — The estimated location of an IP, from commercial or open databases. Databases can disagree about the city. See [why ISP IP cities differ](https://pinnedip.com/guides/isp-ip-geolocation/).

**HTTP proxy** — A proxy that relays web requests; HTTPS traffic passes through a CONNECT tunnel and stays encrypted end to end.

**Internet exchange (IX)** — A shared switch, usually in a carrier hotel, where many networks exchange traffic directly. PeeringDB lists their members.

**ISP proxy** — A fixed IP registered to a consumer internet provider and hosted on a data-center server. Also sold as static residential proxy.

**Residential proxy** — A proxy that exits through real home connections, usually rotating, billed per GB.

**Rotating proxy** — A proxy whose exit IP changes per connection, per request or per session.

**Shared proxy** — An IP used by several customers at the same time. Cheaper, but unsuitable for allowlists.

**SOCKS5** — A proxy protocol that relays any TCP connection and can resolve host names on the proxy side (socks5h). See [SOCKS5 ISP proxies](https://pinnedip.com/socks5-isp-proxies/).

**Static proxy** — A proxy whose exit IP stays the same for the whole rental. See [check that an IP is static](https://pinnedip.com/guides/check-static-ip/).

**Static residential proxy** — The market’s name for an ISP proxy: the address is registered to a residential-type provider, the server is in a data center.

**/24 (subnet)** — A block of 256 consecutive IPv4 addresses, such as 203.0.113.0 to 203.0.113.255. Some sites treat addresses of one /24 as related.

## Glossary: FAQ

### Is "static residential" the same as "ISP"?

Yes, in practice. Both names describe a fixed address registered to a consumer provider and hosted in a data center.

### Is "dedicated" the same as "private"?

Vendors use both words for an IP used by one customer at a time. Neither means the traffic is hidden from the proxy operator: we keep connection metadata for abuse handling, as the [privacy policy](https://pinnedip.com/privacy/) explains.

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PinnedIP: PinnedIP is a static ISP proxy provider for the United States, paid in crypto with no ID upload. Each IP is registered to a US internet provider, hosted in a data center and rented to you for 30 days.