A few minutes ago major Internet companies enabled IPv6 permanently. Happy IPv6 day!
The view from my server:
[dan@alpha ~]$ ping6 -n -c 1 www.google.com; ping6 -n -c 1 www.yahoo.com; ping6 -n -c 1 www.facebook.com PING www.google.com(2001:4860:4008:802::1012) 56 data bytes 64 bytes from 2001:4860:4008:802::1012: icmp_seq=1 ttl=59 time=5.04 ms --- www.google.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 5.048/5.048/5.048/0.000 ms PING www.yahoo.com(2001:4998:f00d:1fe::3001) 56 data bytes 64 bytes from 2001:4998:f00d:1fe::3001: icmp_seq=1 ttl=60 time=31.6 ms --- www.yahoo.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 31.638/31.638/31.638/0.000 ms PING www.facebook.com(2a03:2880:10:1f02:face:b00c:0:25) 56 data bytes 64 bytes from 2a03:2880:10:1f02:face:b00c:0:25: icmp_seq=1 ttl=54 time=87.7 ms --- www.facebook.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 87.754/87.754/87.754/0.000 ms