$ dig intencorp.com | grep -A 1 "ANSWER SECTION"
;; ANSWER SECTION:
intencorp.com.          14400   IN      A       199.102.46.156
$ dig -x 199.102.46.156 | grep -A 1 "ANSWER SECTION"
;; ANSWER SECTION:
156.46.102.199.in-addr.arpa. 14400 IN   PTR     intencorp.com.