Leads are distributed to agents/seats/users on a team account by way of a LeadStream.
If LeadStream is enabled on your team account, you can create reports to see the status of leads you place into the stream.
To access these reports:
1. Click Contacts
2. Click the gear wheel icon
3. Select LeadStream
4. Select the 4th button to view the LeadStream reporting options
Here you will be able to see how many leads have been distributed to users in that LeadStream as well as some other information about your LeadStream leads.