I don’t know if this is a late night test, however apparently Facebook is publishing (I am guessing deliberately) a AAAA via DNS, even for “non-whitelisted” resolvers…
They had announced in April that they would enable AAAA for “beta.facebook.com” for May 18th, yet the plan at that time was to enable AAAA on the www. on June 6th like everyone else. However dig currently has results that push forward that deadline:
dig -t AAAA @184.108.40.206 www.facebook.com ; <<>> DiG 9.3.2 <<>> -t AAAA @220.127.116.11 www.facebook.com ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13463 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.facebook.com. IN AAAA ;; ANSWER SECTION: www.facebook.com. 115 IN AAAA 2a03:2880:10:1f03:face:b00c:0:25 ;; Query time: 18 msec ;; SERVER: 18.104.22.168#53(22.214.171.124) ;; WHEN: Mon May 21 22:53:38 2012 ;; MSG SIZE rcvd: 62
Their initial IP on June 8th 2011 was [2620:0:1cfe:face:b00c::3] (aka www.v6.facebook.com, and www.facebook.com for the 24 hours of World IPv6 Day 2011) , which is within a /40 out of ARIN space. beta.facebook.com and www.facebook.com do not have the same IP so I am guessing they are not necessarily the same source.
It also seems they got their own /32, from RIPE?! Facebook Ireland LTD? What the….
whois 2a03:2880:10:8f02:face:b00c:0:email@example.com [Querying whois.ripe.net] [whois.ripe.net] % This is the RIPE Database query service. % The objects are in RPSL format. % % The RIPE Database is subject to Terms and Conditions. % See http://www.ripe.net/db/support/db-terms-conditions.pdf % Note: this output has been filtered. % To receive output for a database update, use the "-B" flag. % Information related to '2a03:2880::/32' inet6num: 2a03:2880::/32 netname: IE-FACEBOOK-201100822 descr: Facebook Ireland Ltd country: IE org: ORG-FIL7-RIPE admin-c: RD4299-RIPE tech-c: RD4299-RIPE status: ALLOCATED-BY-RIR mnt-by: RIPE-NCC-HM-MNT mnt-lower: fb-neteng mnt-routes: fb-neteng source: RIPE # Filtered organisation: ORG-FIL7-RIPE org-name: Facebook Ireland Ltd org-type: LIR address: Facebook Ireland Ltd Hanover Reach, 5-7 Hanover Quay 2 Dublin Ireland phone: +0016505434800 fax-no: +0016505435325 mnt-ref: RIPE-NCC-HM-MNT mnt-ref: fb-neteng mnt-by: RIPE-NCC-HM-MNT admin-c: PH4972-RIPE source: RIPE # Filtered role: RIPE DBM address: 1601 Willow Rd. address: Menlo Park, CA, 94025 admin-c: PH4972-RIPE tech-c: PH4972-RIPE nic-hdl: RD4299-RIPE mnt-by: fb-neteng source: RIPE # Filtered
Maybe they are looking for ways to make news now that their IPO fell flat after the first full day of public trading? Nevertheless, good to see them venture forward!
More to read about June 6th 2012 – click the image below