This Data Package contains the delegation details of top-level domains
The data is available on : http://www.iana.org/domains/root/db
The data were copied manually from "The Internet Assigned Numbers Authority (IANA)" site, and then posted to Excel file and saved as CSV file.
These data are made available under the Public Domain Dedication and License v1.0 whose full text can be found at: http://www.opendatacommons.org/licenses/pddl/1.0/