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   MAC Address / WWN / Vendor Lookup - WintelGuy.com
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text-align:left; padding-top:4px; float:left;"><form action=/index.pl enctype=multipart/form-data method=post><div><b> Enter MAC address, Bluetooth BD_ADDR, WWN, WWPN, WWNN, or Vendor's name:  </b></div><div style=padding-top:4px;><input name=str style=width:310px;margin-top:4px;><input name=Submit style=margin-top:4px; type=submit value=Submit></div></form></div></div><div class="w3-row w3-padding-4 w3-margin-bottom-4"></div><div class="w3-row w3-padding-4"><div class="w3-col s12 m12 l0 w3-center"><script async src=//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js></script><ins class="adsbygoogle ad_responsive_2"data-ad-client=ca-pub-5268744549554806 data-ad-slot=6474010261 style=display:block> </ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div></div><div class="w3-row w3-padding-4"><p style=margin-bottom:4pt;margin-top:0pt;><b> Search by Ethernet MAC address, OUI, or Bluetooth device address: </b> Enter complete MAC address or at least first six characters including all leading zeros. For example: <b> 00-16-68 </b> or <b> 00-16-68-2B-40-90 </b> or <b> 00:16:68:2B:40:90 </b> or <b> 0016682B4090 </b> or <b> 00.16.68.2B.40.90 </b> . For multiple MAC addresses use our <a href=/bulkmac.pl> Bulk MAC Address Lookup </a> tool.<p><b> Search by Fibre Channel WWN address: </b> Enter complete WWN address including all leading zeros. For example: <b> 210000e08b02e345 </b> or <b> 10:00:00:60:69:00:23:74 </b> or <b> 10.00.00.60.69.00.23.74 </b> . Search by NAA 6 128-bit WWN is also supported. NAA 6 WWNs are used as LUN or disk identifiers. For example: <b> naa.­ <span style=background-color:#e0e0e0;> 600a0980383034663027­76626358764d </span> </b> , <b> /dev/dsk/c6t­ <span style=background-color:#e0e0e0;> 60020F200000CA93­3D7719CA00088BB5 </span> ­d0s0 </b> (WWN is <span style=background-color:#e0e0e0;> highlighted </span> ). For bulk WWN lookup use <a href=/bulkwwn.pl> this </a> tool.<p><b> Search by vendor: </b> Enter at least three <b> alpha-numeric </b> characters to match any part of vendor’s name. For example: <b> IBM </b> or <b> Cisco </b> . One- and two-character search strings are also accepted and will match only a whole part of vendor’s name. For example: a search for <b> AT </b> will bring <b> At Work Computers </b> , <b> AT&T </b> and so on; a search for <b> L </b> will bring <b> L.S.I. Japan Co., Ltd. </b> and <b> L-3 Communication Aviation Recorders, </b> etc.<p style=margin-bottom:1pt;margin-top:4pt;>Database last updated: Oct 2, 2021.  Primary source - <a href=http://standards.ieee.org target=_blank> IEEE Standards Association </a></div><div class="w3-row w3-padding-4 w3-margin-top-4 w3-margin-bottom-4"style=overflow:hidden;><script async src=//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js></script><ins class="adsbygoogle ad_responsive_3"data-ad-client=ca-pub-5268744549554806 data-ad-slot=6474010261 style=display:block> </ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div><div class="w3-row w3-padding-4"><p style=margin-bottom:4pt;margin-top:4pt;>A Media Access Control (MAC) address is a unique 6-octet identifier assigned to a network card or network device by the manufacturer. MAC address consists of two parts. The first three octets (24-bit) contain an Organizationally Unique Identifier (OUI). OUI identifies a manufacturer, vendor, or other organization. The Institute of Electrical and Electronics Engineers (IEEE) performs OUI assignments and maintains the OUI database. The last three octets of a MAC address are assigned by the owner of the OUI to form a globally unique device address.<p style=margin-bottom:4pt;margin-top:4pt;>As shown on the diagram below, the two least significant bits of the initial octet (octet 1) have special purposes:<ul><li>the least significant bit called I/G bit or Group bit;<li>the second least significant bit called U/L bit or Local bit.</ul><p style=margin-bottom:4pt;margin-top:4pt;>OUIs are assigned with the Local bit set to zero and the Group bit unspecified. If the Local bit is one, the address is considered to be under the control of the local network administrator.<p style=margin-bottom:4pt;margin-top:4pt;>The Group bit identifies the address as either unicast address (I/G=0) or multicast address (I/G=1).</div><div class="w3-row w3-margin-bottom-8 w3-margin-top-8"><a href=/img/mac-address-format.png> <img alt="Media Access Control Address Format"class=img_link src=/img/mac-address-format.png> </a></div><div class="w3-row w3-padding-4"><p style=margin-bottom:1pt;margin-top:0pt;>See also: <br> <a href=/2009/20090215_find_mac.html> How to find MAC address... </a> <br> <a href=/2010/20100117_find_wwn.html> How to find WWN... </a> <br> <a href=/bulkmac.pl> Bulk MAC Address Lookup... </a> <br> <a href=/bulkwwn.pl> Bulk WWN Lookup... </a> <br> <a href=/list.html> Tools, Converters, and Calculators - extended list </a></div><div class=w3-row><div class="w3-col w3-container w3-margin-top-8 w3-margin-bottom w3-center"><script async src=//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js></script><ins class=adsbygoogle data-ad-client=ca-pub-5268744549554806 data-ad-format=auto data-ad-slot=6474010261 style=display:block> </ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div></div></div><div class="w3-col s0 m0 l2"><div class="w3-row w3-margin-top"><script async src=//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js></script><ins class=adsbygoogle data-ad-client=ca-pub-5268744549554806 data-ad-format=auto data-ad-slot=6474010261 style=display:block> </ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div><div class="w3-row w3-margin-top"><script async src=//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js></script><ins class=adsbygoogle data-ad-client=ca-pub-5268744549554806 data-ad-format=auto data-ad-slot=6474010261 style=display:block> </ins><script>(adsbygoogle = window.adsbygoogle || []).push({});</script></div></div></div><footer class="w3-container w3-margin-bottom w3-margin-top-8 grey"><div class="w3-half text-white">©2020 All rights reserved.</div><div class="w3-half w3-right-align text-white"><a href=/contactfrm.html> Disclaimer | Comments, questions, problems? </a></div></footer><script>function w3_open() {
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