You can manage all service blocks from My Verizon. When you're logged in to your account, hover over My Verizon at the top and under My Plans & Services click Manage Verizon Safeguards. Under the Service Blocks category click View and Edit on the right side. This will allow you to change blocks for any of the lines on the account as long as your signed in as the Account Owner online.
Please follow us on Twitter @VZWSupport