host-64-166-83.ubernet.com.bd was testing my security, so I thought I would out them. ubernet.com.bd is an IP telephone and ISP, out of Bangledesh.
Pattern:
This guy seems to have an older and a newer pattern. The older pattern starts with 220.47 and then appends the last 2 octets of the host name. The newer pattern starts with 45 and appends the last 3 octets of the host name.
Research:
host-161-148.ubernet.com.bd 220.247.161.148 220.247.160.0 – 220.247.167.255 220.247.160.0/21
host-162-202.ubernet.com.bd 220.247.162.202
host-162-238.ubernet.com.bd 220.247.162.238
host-162-58.ubernet.com.bd 220.247.162.58
host-162-55.ubernet.com.bd 220.247.162.55
host-162-173.ubernet.com.bd 220.247.162.173
host-164-250.ubernet.com.bd 220.247.164.250
host-165-78.ubernet.com.bd 220.247.165.78
host-165-69.ubernet.com.bd 220.247.165.69
host-165-153.ubernet.com.bd 220.247.165.153
host-165-136.ubernet.com.bd 220.247.165.136
host-165-134.ubernet.com.bd 220.247.165.134
host-165-66.ubernet.com.bd 220.247.165.66
host-165-68.ubernet.com.bd 220.247.165.68
host-166-33.ubernet.com.bd 220.247.166.33
host-166-247.ubernet.com.bd 220.247.166.247
host-166-150.ubernet.com.bd 220.247.166.150
host-166-3.ubernet.com.bd 220.247.166.3
host-166-4.ubernet.com.bd 220.247.166.4
host-166-82.ubernet.com.bd 220.247.166.82
host-167-10.ubernet.com.bd 220.247.167.10
host-64-166-2.ubernet.com.bd 45.64.166.2 45.64.164.0 – 45.67.255 45.64.164.0/22
host-64-166-6.ubernet.com.bd 45.64.166.6
host-64-166-30.ubernet.com.bd 45.64.166.30
host-64-166-78.ubernet.com.bd 45.64.166.78
host-64-166-84.ubernet.com.bd 45.64.166.84
host-64-166-90.ubernet.com.bd 45.64.166.90
host-64-166-242.ubernet.com.bd 45.64.166.142
host-64-166-178.ubernet.com.bd 45.64.166.178
host-64-166-207.ubernet.com.bd 45.64.166.207
host-64-166-219.ubernet.com.bd 45.64.166.219
host-64-166-225.ubernet.com.bd 45.64.166.225