Simple Script for Getting the List of Public IP Addresses for VCNs and the Oracle Services Network for a Specific Region

Oracle publishes the list of IP ranges here. With the script provided you can get the list of IP’s from your command line.

#
wget https://docs.cloud.oracle.com/iaas/tools/public_ip_ranges.json
# change the Region Identifier in bold for the one you are interested in. List of regions here: https://docs.cloud.oracle.com/en-us/iaas/Content/General/Concepts/regions.htm
#
docker run -i stedolan/jq < public_ip_ranges.json '.regions[] | select (.region=="eu-frankfurt-1") | .cidrs[] | select (.cidr | contains(".")) | .cidr' | sed 's/"//g'
# thats all

Output example

Hope it helps!

See also here and here