1. watchA
watchNS/smt.docomo.ne.jp
https://securitytrails.com/domain/docomo.ne.jp/history/ns
2. whois
Domain Information: a. [Domain Name] DOCOMO.NE.JP d. [Network Service Name] i mode service l. [Organization Type] Network Service m. [Administrative Contact] JN9094JP n. [Technical Contact] JN9094JP p. [Name Server] ns001.docomo.ne.jp p. [Name Server] ns002.docomo.ne.jp s. [Signing Key] [State] Connected (2021/07/31) [Registered Date] 1998/07/17 [Connected Date] 1998/07/30 [Last Update] 2020/08/01 01:02:13 (JST) ;; AUTHORITY SECTION: docomo.ne.jp. 86400 IN NS ns001.docomo.ne.jp. docomo.ne.jp. 86400 IN NS ns002.docomo.ne.jp. ;; ADDITIONAL SECTION: ns001.docomo.ne.jp. 86400 IN A 49.102.160.23 ns002.docomo.ne.jp. 86400 IN A 49.102.160.24
3. history
;; AUTHORITY SECTION: www.docomo.ne.jp. 300 IN NS ns-25.awsdns-03.com. www.docomo.ne.jp. 300 IN NS ns-1667.awsdns-16.co.uk. www.docomo.ne.jp. 300 IN NS ns-1505.awsdns-60.org. www.docomo.ne.jp. 300 IN NS ns-692.awsdns-22.net.