This list was generated using the OCI CLI command: oci iam region list --all

https://docs.oracle.com/en-us/iaas/tools/oci-cli/3.25.3/oci_cli_docs/cmdref/iam/region/list.html

After the json was generated, I have added the coordinates for each DC city.

To export the data formated in table, you can use: oci iam region list --all --output table