City: Guangzhou
Region: Guangdong
Country: China
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
b; <<>> DiG 9.10.3-P4-Ubuntu <<>> 183.5.80.91
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 24299
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;183.5.80.91. IN A
;; AUTHORITY SECTION:
. 489 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020040200 1800 900 604800 86400
;; Query time: 54 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Apr 02 19:14:42 CST 2020
;; MSG SIZE rcvd: 115Host 91.80.5.183.in-addr.arpa. not found: 3(NXDOMAIN)Server: 100.100.2.138
Address: 100.100.2.138#53
** server can't find 91.80.5.183.in-addr.arpa.: NXDOMAIN