リンク番号 です
rinkubangōdesu
1. Link number.; Identification number.
Noun
1. Link number.; Identification number.
1. telephone number
1. number on the back of a player's uniform; uniform number
1. number; series of digits
1. registration number
1. account number (bank, etc.)
1. ice skating rink; ice rink
1. Was the phone number.