Those IP Address will have no Country of Origin, as they are deemed Private Class A addresses. From my /etc/hosts
file:
#
# According to RFC 1918, you can use the following IP networks for private
# nets which will never be connected to the Internet:
#
# 10.0.0.0 - 10.255.255.255
# 172.16.0.0 - 172.31.255.255
# 192.168.0.0 - 192.168.255.255
#
# In case you want to be able to connect directly to the Internet (i.e. not
# behind a NAT, ADSL router, etc...), you need real official assigned
# numbers. Do not try to invent your own network numbers but instead get one
# from your network provider (if any) or from your regional registry (ARIN,
# APNIC, LACNIC, RIPE NCC, or AfriNIC.)
RFC1918 - Address Allocation for Private Internets - February 1996, updated by RFC6761 - Special-Use Domain Names - February 2013. These are the Standards that govern Private IP Addressing. I'm posting this because this is how the person spoofing/masquerading is not getting caught, which airfishey beat me to.