Floating IPs

A floating IP is a public IP address that belongs to your account instead of to one machine. You attach it to a Cloud Compute instance or a Container Apps server, and you can move it to another one later while the address stays the same. A floating IP is either a single IPv4 address or a subnet, a block of addresses whose hosts you attach one at a time.

Use a floating IP when an address has to outlast the machine behind it, such as a mail server whose reverse DNS you want to keep or a game server address your players have saved.

Select Floating IPs in the dashboard sidebar. The IPs tab lists every floating IP on your account. Each row shows the Address with its prefix length, such as 203.0.113.10/32, its Version, Region and Prefix, what it is Attached to, and its Status. A subnet shows how many usable hosts it has and how many of them are attached.

• Filter the list with All, Attached, Unattached or Pending. Pending marks a floating IP whose service is not active, such as one that waits for payment or is suspended.
• Type in the search box to find a floating IP by its address, region, pool or what it is attached to.
• Select Order floating IP to order one, as Order a floating IP describes.

The IPv4 address that comes with a Cloud Compute instance is a floating IP too, so it appears in this list. It ends when the instance ends.

Select a row to open the floating IP. The header shows the address, its status, whether it is an IPv4 address or a Subnet block, its region and what it is attached to. Copy address copies the address.

The Overview tab opens first. When a single address is not attached to anything, the tab starts with Not attached to anything yet and a link to attach it.

Address

The address or subnet, its Version, Prefix, Region and Pool, and its Gateway when it has one. A single address shows what it is Attached to, Attached since and, on an instance, its Role on instance: Primary address or Additional address. A subnet shows Hosts: how many of its usable hosts are attached and how many are free. Reverse DNS shows the address's hostname, or Set reverse DNS when it has none.

Service

The service that bills for the floating IP: its Status, Product, Price, Next renewal, when it was Ordered, and its Service ID. Open Billing opens the Billing tab.

Tags

Labels to find the floating IP by, as Tag your services describes.

Protection

A reminder that DDoS Shield filters traffic to the address. Open Shield opens the Shield tab.

Get an address:

• Order a floating IP, and follow the order on the Orders tab
• IP pools and regions, the Pools tab

Use it:

• Attach and detach a floating IP, the Attach tab
• Set reverse DNS for a floating IP, the Reverse DNS tab
• How subnets work, the Hosts tab
• Change a floating IP's DDoS protection, the Shield tab

Pay for it and fix problems:

• Cancel a floating IP, the Billing tab
• Troubleshoot floating IPs

The public page at https://www.coritan.com/solutions/floating-ips describes the product. The Pools tab shows the sizes and regions you can actually order.

Each floating IP is a service of its own, on the plan and billing cycle you order it on. A single address costs nothing while it is the primary address of a Cloud Compute instance. Anywhere else it bills at its plan's price: while it is unattached, as an additional address on an instance, or on a server. A subnet always bills at its plan's price.

Cancel a floating IP explains how the price follows the address. Billing covers invoices, credit and payment.

• Floating IPs are IPv4. You can order a single address, or a subnet from /29 to /24 where the Pools tab offers one.
• A floating IP attaches to a Cloud Compute instance or a Container Apps server.
• A single address attaches to one instance or server at a time. Each host of a subnet attaches on its own, so different hosts can go to different targets.
• A server holds one floating IP. An instance can hold several, and one of them is its primary address.
• DDoS Shield filters traffic to every floating IP on your account, attached or not.

GET /api/v1/client/ips lists the floating IPs on your account, newest first, as items with a total.

curl https://api.coritan.com/api/v1/client/ips \
  -H "Authorization: Bearer $CORITAN_TOKEN"

{
  "items": [
    {
      "service_id": 214,
      "service_status": "active",
      "amount": 4.0,
      "billing_cycle": "monthly",
      "next_due_date": "2026-10-25T00:00:00",
      "kind": "standalone",
      "address": "203.0.113.10",
      "cidr": "203.0.113.10/32",
      "version": "ipv4",
      "prefix_len": 32,
      "inventory_status": "assigned",
      "pool_id": 4,
      "pool_name": "Frankfurt 1",
      "region": "fra",
      "geo_label": "Frankfurt",
      "target_type": "vps",
      "target_service_id": 118,
      "attached_at": "2026-09-25T10:00:00",
      "is_primary": 1
    }
  ],
  "total": 1
}

Use service_id in every other floating IP request. kind is standalone for a single address and block for a subnet. inventory_status is assigned once the address is yours to attach. amount is what the next renewal costs.

For a single address, target_type is vps for an instance or container for a server, and target_service_id is that service's ID. Both are null when the address is not attached. is_primary is 1 when the address is its instance's primary address. On a server, host_state and host_error say whether the address reached the server's host.

A subnet has null in the attachment fields. It carries hosts, one entry for each address in the block, and the counts hosts_total, hosts_attached and hosts_available, as How subnets work describes.

GET /api/v1/client/ips/{service_id} returns one floating IP with the same fields. A service that is not a floating IP on your account answers 404 with IP service not found.

The Floating IPs API reference lists every field.