All error codes

ip_list_unavailable

HTTP 503 The list of addresses cannot be read right now

What happened

The list of the project's public addresses is read on every request that needs it, and this time the platform did not answer. You get an error instead of a shortened list, because an address missing from a response reads as one you no longer pay for. Deleting a server answers this too: its reply names the addresses that stay billable after the server is gone, and it is not sent unless that list was read.

What to do

Retry in a few seconds; if the response carries a Retry-After header, wait at least that long. Your request does not need to change. When a server deletion answers this, the server has NOT been deleted - the list is read before the deletion is submitted, so repeat the same request.

Retrying

The request itself is fine. Repeat it later; after a 5xx use a new idempotency key and read the resource first.

How it arrives

{
    "type": "https://docs.fiberax.com/errors/ip_list_unavailable",
    "title": "The list of addresses cannot be read right now",
    "status": 503,
    "code": "ip_list_unavailable",
    "request_id": "a277dcd1ca652c65"
}

Branch your code on code, never on the wording of title.