Splunk uses the GeoLite2-City.mmdb database for the iplocations. You can locate the file at $Splunk_Home/share .
To view the City Names in the latest DB you can download the csv version from here or search for the java or python codes to open and read the mmdb file. (Not sure if Splunk has a command to to list all the iplocations stored in the DB)
In case you need to update the City location db, see here or see Splunk blog here.
Maybe if SAS uses mmdb as well then you can synch up the GeoLite2-City.mmdb file and might see the info as expected.
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