# Datacenter IPv6

> A private /48 IPv6 subnet in the city you buy, rotating by default, with sticky sessions when you want them.

Source: https://docs.trueproxies.com/proxy-instructions/products/datacenter-ipv6/

Datacenter IPv6 gives you a **private /48 in the city you buy**. The gateway draws a fresh IPv6 from that subnet for each new connection unless you provide a session token.

|                   |                                                                                            |
| ----------------- | ------------------------------------------------------------------------------------------ |
| Addresses         | A private /48 for the purchased city                                                       |
| Default behaviour | A new IPv6 on every new connection                                                         |
| Sticky sessions   | Opt in with a session token; 10 minutes by default, 60 seconds to 24 hours with `lifetime` |
| City              | Selected when the service is purchased                                                     |
| Protocols         | HTTP `8080`, HTTPS `8443`, and SOCKS5 `1080` on the service’s connection host              |
| Authentication    | Username and password, and trusted IPs, together                                           |
| Billing           | Speed tier; no per-GB charge; published fair-use limit                                     |

## Connection instructions

Datacenter IPv6 connection hosts are city specific. The dashboard is the source of truth for a purchased service’s host and credentials; the ports are the same as on every other product. Do not append `:443` to the host.

You reach the connection host over IPv4, so the machine running your client does not need IPv6. Only the exit your target sees is IPv6.

To check the exit, use an IPv6-capable target such as `https://api64.ipify.org`. An IPv4-only destination cannot be reached through an IPv6-native exit.

## Plans and billing

Choose 25, 70, 175, or 400 Mbps, then choose a daily, weekly, or monthly plan. Every tier publishes its fair-use limit in the catalog.

Nothing is charged automatically. Before a plan ends, we send a renewal invoice: 12 hours before for daily plans, and 3 days before for weekly and monthly plans. Paying it extends the plan from its current end date; if it is not paid, the plan ends. You can turn renewal invoices off for each service in the dashboard.

Daily plans are non-refundable. Weekly and monthly plans are refundable only for a verified technical issue on our side; see the [refund policy](https://trueproxies.com/refund-policy/).

## Rotation

Rotation happens **per connection**, not per HTTP request. A client that reuses a keep-alive connection keeps its address for that connection; open a new one and the gateway selects a fresh address.

- **HTTP** — a new address whenever a new upstream connection is opened.
- **HTTPS / CONNECT and SOCKS5 TCP** — one address per tunnel.
- **SOCKS5 UDP** — not supported. UDP requests are refused; SOCKS5 carries TCP only.

## Sticky sessions

Add a session token and every connection carrying it leaves from the same address for a fixed time window. Without a lifetime the window is 10 minutes. To change it, add a lifetime in seconds, from `60` to `86400`:

```text
YOUR_USERNAME-session-checkout42-lifetime-3600:YOUR_PASSWORD
```

Windows follow the clock, not your first connection. With `lifetime-600` the address changes at every 10-minute boundary, so a session that starts two minutes before a boundary keeps its address for two minutes. Choose a lifetime longer than the job, or use a new session token when the address must not change mid-task.

## Purchased city

The city is selected when you buy the service. Its connection host applies to that city; do not attempt to switch cities by adding a credential suffix. Buy a service for the city you need instead.

> **Caution**
>
> **This product is IPv6-only.** A destination that publishes no AAAA record is unreachable. There is no IPv4 fallback because translation would expose a shared IPv4 instead of the assigned IPv6 space. Check each target before you build around it.

## Authentication

Both authentication methods work at once on every port. Trusted IPs can connect without a password; everyone else uses username and password.

If a password is sent, it must be correct. A trusted IP does not excuse a wrong password because that would silently downgrade authentication.

## Credential options

| Option     | Value                                                          |
| ---------- | -------------------------------------------------------------- |
| `session`  | 1–32 letters or digits                                         |
| `lifetime` | Window length in seconds, `60` to `86400`; omit for 10 minutes |
| `rotate`   | The default; accepted and changes nothing                      |

Unsupported selectors such as `city`, `region`, `continent`, `isp`, `asn`, `zip`, and fraud or device selectors are refused with the same answer as any invalid targeting option; the message does not name the selector.

## Check what the service supports

The service’s page in the dashboard shows its city, connection host and ports, and access dates. To automate, use the **API** page in your dashboard, where you create API keys and open the API reference.

## Related references

- [How to connect](https://docs.trueproxies.com/proxy-instructions/how-to-connect/)
- [Proxy protocols](https://docs.trueproxies.com/proxy-instructions/proxy-protocols/)
- [Residential IPv6](https://docs.trueproxies.com/proxy-instructions/products/residential-ipv6/)