You can reach the InterNIC Registration Services by the following forms of communication:
Write to the following address:
Network Solutions Attn: InterNIC Registration Services 505 Huntmar Park Drive Herndon, Virginia 22070
Telephone
The phone number is 1–703-742-4777. Phone service is available from 7 a.m. to 7 p.m. Eastern Standard Time. The domestic toll free phone number is 1–800–779–1710.