I phoned one morning and kept getting a recording for the operator that the Florissant Career Center was not available. Also there are set hours for registration. You cannot find that out until you go to the center. However, if you have a name of a party you need to get in touch with, you can use their directory. I do not know if you can actually leave a message. When you go to the MO Career Center, be prepared to stay for awhile since in some circumstances you will not receive any information in advance notifying you that you will have to register again within a specific period. Otherwise, they are helpful.