Here are the copyright notices applicable to the netaddr library.
Copyright (c) 2008 David P. D. Moss Portions Copyright (c) 2020 netaddr contributors
Released under the BSD license. See the LICENSE file for details.
netaddr is not sponsored nor endorsed by IANA.
Use of data from IANA (Internet Assigned Numbers Authority) is subject to copyright and is provided with prior written permission.
IANA data files included with netaddr are not modified in any way but are parsed and made available to end users through an API.
See README file and source code for URLs to latest copies of the relevant files.
netaddr is not sponsored nor endorsed by the IEEE.
Use of data from the IEEE (Institute of Electrical and Electronics Engineers) is subject to copyright. See the following URL for details :
http://www.ieee.org/web/publications/rights/legal.html
IEEE data files included with netaddr are not modified in any way but are parsed and made available to end users through an API. There is no guarantee that referenced files are not out of date.
See README file and source code for URLs to latest copies of the relevant files.