IPv4: 50.16.166.175
Jun-ya Kato / Cygwin
Accelerated Technology / Nucleus RTOS
Elmic Systems / Voyager
Elmic Systems / Voyager Mobile
Enea / FutureSoft
Express Logic / ThreadX
Express Logic / NetX
Green Hills / Integrity RTOS
Microsoft / Windows Embedded
MontaVista / MontaVista Linux
NexusWare / NexusWare Core
QNX / Neutrino RTOS
RadiSys / Microware OS-9
Symbian / Symbian OS
SYSGO / ELinOS
SYSGO / ELinOS Real-Time
TeamF1 / NetF1
Treck / Treck Embedded
Unicoi / Fusion
WindRiver / VxWorks
Apple / Mac OS X
Microsoft / Windows XP
Microsoft / Windows Vista
Microsoft / Windows Mobile
Microsoft / Windows CE .NET
PalmSource / Palm OS Cobalt
Trumpet / PETROS
kernel.org / Unix-like OS Kernel
Apple / Mac OS X Server
Canonical / Linux Ubuntu
Compaq - Hewlett Packard / OpenVMS
Compaq - Hewlett Packard / Tru64 UNIX
FreeBSD Project / FreeBSD
Gentoo Foundation / Linux Gentoo
Hewlett Packard / UX 11i
IBM / AIX
IBM / OS/390
IBM / i5/OS
Mc / BugOS
Microsoft / Windows 2003
Microsoft / Windows Server 2008
NetBSD Foundation / NetBSD
Novell / NetWare
OpenBSD / OpenBSD
Red Hat / Linux Fedora
Red Hat / Linux Red Hat
SCO / UnixWare
SCO / OpenServer
SG / IRIX
SPI / Linux Debian
Sun / SunOS
Sun / Solaris
UUnet Technologies / BSD
IBM / z/OS
OpenVZ / OpenVZ Project
Hiroyuki Inoue / IPv6 Denshi Block
Digi / Connect ME
National Chung Hsing University
National Tsing-Hua University and BroadWeb
Panasonic
TEPCO UQUEST
GE Fanuc
AMCC
Atheros
Bay Microsystems
Broadcom
Cavium
Cavium Networks
Conexant
Cortina
DS2
DWA Wireless
EZchip
Freescale
Fujitsu
Hifn
IBM
IDT
Ikanos
Infineon
Intel
Jennic
Marvell
Mellanox
Micrel
Mindspeed
NetLogic
PA SEMI
Paion
STMicroelectronics
SwitchCore
Texas Instruments
Texas Instruments / Puma 5
Wintegra
Xelerated
Digi / Connect Wi-ME
EZURiO
Blunk Microsystems / TargetTCP
Enea / DSPNet
Gemalto
GP van Niekerk Ondernemings (GPvNO) / RINET and RINET32
Green Hill / GHNet
Hitachi / Toolnet6
INRIA and Bull / Dyade
INRIA and LIP6 Paris / DRET
InternetNode / RealSpace6
InterNiche / NicheStack IPv6
InterNiche / NicheStack Dual IPv4/IPv6
Interpeak / Mobile IPv6
Interpeak / IPLITE
Interpeak / IPNET
KADAK / KwikNet TCP/IP
Kame / Kame
Konica Minolta / IPv6 Stack
Lancaster University / Mobile IPv6 Stack
M. Morris / Nanov6
Mentat and Packeteer / Mentat TCP
Microsoft Research / MSRIPv6
National Tsing Hua University / IPv6 Stack
Network Programs / IPv6 Stack
Oki Electric / Dual Stack
Panasonic / IPv6 Stack
Process Software / TCPware
Quadros / RTXC Quadnet TCP/IP
Sensinode / NanoStack
TEPCO UQUEST / matrixNET
Trumpet / Trumpet IPv6
University of New Hampshire / IPv6 Stack
US Naval Research Laboratory / NRL IPv6 IPsec
USAGI and WIDE Project / USAGI
iBIT / Forsix-One