### Answer
This "Phone number already exists" error has been reported in the community when trying to import a number that's already registered — one user found the cause was that the number was already imported under a different Retell account, not their own workspace [(1) ](
) .
Since the number isn't showing in any of your workspaces, the likely explanation is that it's still registered under a separate Retell account tied to a different API key/workspace . In that case, the fix requires deleting the number from whichever account currently holds it — the reporting user resolved their identical error by having the number deleted from the other Retell account before it could be imported into theirs .
I don't have documentation-level detail on a self-service way to look up or force-release a number tied to another workspace. Since this ties into account-specific data I can't access, I'd recommend reaching out through official channels for this:
- [Documentation](
)
- [Hire certified Retell partner](
)
You may also want to try the [Get Phone Number](
) or [List Phone Numbers](
) endpoints against your own account to confirm it truly isn't present on your side before contacting support [(2) ](
) [(3) ](
) .