Removing WPMU Database Clutter

Can anyone identify whether the info below is related to a WPMU plugin, or any other plugin for that matter?

10_m_communications
10_m_coupons
10_m_levelmeta
10_m_member_payments
10_m_membership_levels
10_m_membership_news
10_m_membership_relationships
10_m_membership_rules
10_m_ping_history
10_m_pings
10_m_subscription_transaction
10_m_subscriptionmeta
10_m_subscriptions
10_m_subscriptions_levels
10_m_urlgroups

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_rg_form
10_rg_form_meta
10_rg_form_view
10_rg_lead Empty
10_rg_lead_detail
10_rg_lead_detail_long
10_rg_lead_meta
10_rg_lead_notes