Code:
$ dig @8.8.8.8 ftp.usa.openbsd.org
; <<>> DiG 9.4.2-P2 <<>> @8.8.8.8 ftp.usa.openbsd.org
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5202
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;ftp.usa.openbsd.org. IN A
;; ANSWER SECTION:
ftp.usa.openbsd.org. 0 IN CNAME plier.ucar.edu.
plier.ucar.edu. 86400 IN A 192.43.244.161
;; Query time: 274 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Aug 29 10:37:43 2011
;; MSG SIZE rcvd: 81
Works for me with google's public dns. What IP did you use?