Updated: July 2016, collected by Jing Sun
Updated: Sep. 2015, collected by Jing Sun
By Cisco Systems
Posted: Richard A Steenbergen nLayer Communications, Inc.
Last Updated 2019-12-27, by IANA
Last Updated 2020-01-31, by IANA
Last Updated: March 25, 2020, by IANA
Last Updated 2020-04-07 , by IANA
Updated: 2014, collected by Jing Sun
Updated: Jan 01, 2014, from conserver.com
Updated: Sep. 2010, collected by Jing Sun
Updated: Nov. 2009, collected by Jing Sun
Updated: Feb. 2009 by AT&T
Updated by Cisco Systems
Updated: 2007, collected by Jing Sun
Updated: 2005, collected by Jing Sun