Both work for me from my 44.92.21.X subnet.
Last login: Wed Sep 3 12:46:55 2014 root@ampr-gw:~# ping 44.135.49.2 PING 44.135.49.2 (44.135.49.2) 56(84) bytes of data. 64 bytes from 44.135.49.2: icmp_req=1 ttl=63 time=100 ms 64 bytes from 44.135.49.2: icmp_req=2 ttl=63 time=100 ms ^C --- 44.135.49.2 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 100.335/100.639/100.944/0.439 ms root@ampr-gw:~# ping 44.135.52.33 PING 44.135.52.33 (44.135.52.33) 56(84) bytes of data. 64 bytes from 44.135.52.33: icmp_req=1 ttl=30 time=51.1 ms 64 bytes from 44.135.52.33: icmp_req=2 ttl=30 time=54.3 ms ^C --- 44.135.52.33 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 51.161/52.745/54.329/1.584 ms root@ampr-gw:~#