38:5F:66 Cisco SPVTG
Every MAC address from 38:5F:66:00:00:00 to 38:5F:66:FF:FF:FF belongs to a block the IEEE assigned to Cisco SPVTG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 38:5F:66 belongs to
Written 38:5F:66, 38-5F-66 or 385F66, depending on the system. Look up a full address.
Prefix
38:5F:66
Organization
Cisco SPVTG
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
38:5F:66:00:00:00
Last address
38:5F:66:FF:FF:FF
Address type
Globally unique, unicast
Registered address
5030 Sugarloaf Parkway Lawrenceville GA US 30044
Same organization
Other blocks assigned to Cisco SPVTG
40 more blocks registered under the same name.
00:18:6800:19:4700:1B:D700:1E:6B00:21:BE00:22:3A00:22:CE00:23:BE00:25:2E08:80:3910:5F:4910:EA:5918:55:0F18:59:3324:37:4C24:76:7D2C:AB:A434:BD:FA38:C8:5C44:58:2944:E0:8E48:1D:7048:44:874C:83:DE50:39:5554:D4:6F60:2A:D068:EE:9674:54:7D7C:B2:1B84:8D:C7A4:A2:4ABC:C8:10BC:D1:65C0:C6:87C8:FB:26CC:0D:ECE4:48:C7F4:4B:2AF4:5F:D4