Here are the copyright notices applicable to the netaddr library.
Copyright (c) 2008-2012, David P. D. Moss. All rights reserved.
Released under the BSD license. See the LICENSE file for details.
Copyright (C) 2006, Heiko Wundram.
Released under the MIT license. See the LICENSE file for details.
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 :-
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 There is no guarantee that referenced files are not out of date.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.