City: Yokohama
Region: Kanagawa
Country: Japan
Internet Service Provider: NTT docomo
Hostname: unknown
Organization: unknown
Usage Type: unknown
b; <<>> DiG 9.10.3-P4-Ubuntu <<>> 1.73.252.147
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 47447
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;1.73.252.147. IN A
;; AUTHORITY SECTION:
. 291 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020040402 1800 900 604800 86400
;; Query time: 111 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Apr 05 05:46:27 CST 2020
;; MSG SIZE rcvd: 116Host 147.252.73.1.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 147.252.73.1.in-addr.arpa: NXDOMAIN