Way Back When, I think that IEEE was the party that handed out prefixes to be used as MAC addresses. I know several people have compiled lists at one time or another.
there are quite a few lists...i've found these so far. lists: http://www.cavebear.com/CaveBear/Ethernet/vendor.html ftp://ftp.cavebear.com/pub/Ethernet.txt http://standards.ieee.org/regauth/oui/oui.txt http://www.iana.org/assignments/ethernet-numbers ftp://ftp.iana.org/in-notes/iana/assignments/ethernet-numbers http://www.netsys.com/macaddr.html http://map-ne.com/Ethernet/vendor.html lookups: http://standards.ieee.org/regauth/oui/ http://coffer.com/mac_find/ general info: http://standards.ieee.org/regauth/oui/tutorials/EUI64.html
There's a neat little app for palm OS handhelds called Ethertools*, that had a reasonably comprehensive list of the well-known ones.
i find it far easier to just 'dig txt ##:##:##.et.graffiti.com' when i need to know. ps - i'm looking for capable secondaries for this zone -- |-----< "CODE WARRIOR" >-----| codewarrior@daemon.org * "ah! i see you have the internet twofsonet@graffiti.com (Andrew Brown) that goes *ping*!" andrew@crossbar.com * "information is power -- share the wealth."