Host not found

Unable to find a host corresponding to the IP address 62.252.64.17.
The output of `dig -x '62.252.64.17'` follows:

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> -x 62.252.64.17
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3721
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;17.64.252.62.in-addr.arpa.	IN	PTR

;; AUTHORITY SECTION:
64.252.62.in-addr.arpa.	10800	IN	SOA	dns1.ntli.net.64.252.62.in-addr.arpa. hostmaster.ntli.net.64.252.62.in-addr.arpa. 2010042300 86400 7200 2419200 900

;; Query time: 3 msec
;; SERVER: 83.166.160.10#53(83.166.160.10)
;; WHEN: Thu Sep  9 12:56:10 2010
;; MSG SIZE  rcvd: 104