The number is not in use

Good morning
Since yesterday when i try to dial the number to host the fcc the operator keeps telling me that the number is not in use.
Can you help me with this?
Thank you

The same problem on here.
Nobody gives a solution?

Hello, for any dial-in number issues, please email us at or contact our 24/7 customer care team at (844) 844-1322. Our team will need you to provide them your dial-in number and access code so they can troubleshoot the issue.