City: unknown
Region: unknown
Country: United States
Internet Service Provider: unknown
Hostname: unknown
Organization: MCI
Usage Type: unknown
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; <<>> DiG 9.10.3-P4-Ubuntu <<>> 166.47.31.71
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32896
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;166.47.31.71. IN A
;; AUTHORITY SECTION:
. 3600 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019050300 1800 900 604800 86400
;; Query time: 2 msec
;; SERVER: 67.207.67.3#53(67.207.67.3)
;; WHEN: Sat May 04 01:39:50 +08 2019
;; MSG SIZE rcvd: 116
Host 71.31.47.166.in-addr.arpa. not found: 3(NXDOMAIN)
Server: 67.207.67.3
Address: 67.207.67.3#53
** server can't find 71.31.47.166.in-addr.arpa: NXDOMAIN