user: Question: Which IPv6 Address hAd A locAtion of Distributed using AnycAst 8/0 And A letter of A?
Columns: ['Letter', 'IPv6 address', 'AS-number', 'Operator', 'Location #sites (global/local)', 'Software']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['A', '2001:503:ba3e::2:30', 'AS19836', 'Verisign', 'Distributed using anycast 8/0', 'BIND']
SQL:

assistant: SELECT "IPv6 address" FROM "Table" WHERE "Location #sites (global/local)" = 'Distributed using anycast 8/0' AND "Letter" = 'A';