Even with Unblock-Us I can reach CloudFlare just fine here (Berlin, Germany):

; <<>> DiG 9.8.3-P1 <<>> @208.122.23.22 cloudflare.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12445 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION: ;cloudflare.com. IN A

;; ANSWER SECTION: cloudflare.com. 300 IN A 173.245.60.249 cloudflare.com. 300 IN A 173.245.60.250 cloudflare.com. 300 IN A 173.245.61.248 cloudflare.com. 300 IN A 173.245.61.249 cloudflare.com. 300 IN A 173.245.61.250

;; Query time: 61 msec ;; SERVER: 208.122.23.22#53(208.122.23.22) ;; WHEN: Sun Dec 2 01:24:29 2012 ;; MSG SIZE rcvd: 112