It seems facebook has started to publish AAAA on non-"whitelisted" DNS servers -
dig -t AAAA @4.2.2.2 www.facebook.com
; <<>> DiG 9.3.2 <<>> -t AAAA @4.2.2.2 www.facebook.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15385
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.facebook.com. IN AAAA
;; ANSWER SECTION:
www.facebook.com. 96 IN AAAA 2a03:2880:10:8f01:face:b00c:0:25
;; Query time: 15 msec
;; SERVER: 4.2.2.2#53(4.2.2.2)
;; WHEN: Mon May 21 23:10:15 2012
;; MSG SIZE rcvd: 62
good to see considering it was "supposed" to re-occur only on June 6th. Maybe they need some news to spur investment in their stock
