city.kunitachi.tokyo.jp	IN	NS	ns-1511.awsdns-60.org
city.kunitachi.tokyo.jp	IN	NS	ns-1548.awsdns-01.co.uk
city.kunitachi.tokyo.jp	IN	NS	ns-209.awsdns-26.com
city.kunitachi.tokyo.jp	IN	NS	ns-891.awsdns-47.net