40:12:77 Microsoft Corporation
Every MAC address from 40:12:77:00:00:00 to 40:12:77:FF:FF:FF belongs to a block the IEEE assigned to Microsoft Corporation. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 40:12:77 belongs to
Written 40:12:77, 40-12-77 or 401277, depending on the system. Look up a full address.
Prefix
40:12:77
Organization
Microsoft Corporation
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
40:12:77:00:00:00
Last address
40:12:77:FF:FF:FF
Address type
Globally unique, unicast
Registered address
One Microsoft Way REDMOND WA US 98052
Same organization
Other blocks assigned to Microsoft Corporation
106 more blocks registered under the same name.
00:03:FF00:12:5A00:15:5D00:17:FA00:1D:D800:22:4800:25:AE04:27:2808:35:7D0C:1B:7B0C:35:260C:41:3E0C:E7:2510:2F:6B10:7A:2A10:C7:3514:9A:1014:CB:651C:1A:DF1C:8F:0C20:16:4220:62:7420:A9:9B28:16:A828:18:7828:EA:0B2C:29:972C:54:9138:33:C538:56:3D3C:83:753C:FA:0640:8E:2C44:16:2248:50:7348:7B:2F48:86:E84C:3B:DF54:4C:8A58:79:615C:BA:3768:6C:E668:F7:D86C:15:446C:5D:3A70:A8:A570:BC:1070:F8:AE74:76:1F74:C4:1274:D8:0974:E2:8C74:E5:1778:86:2E7C:6D:127C:C0:AA80:C5:E684:57:3384:63:D684:B1:E290:20:D790:6A:EB94:9A:A998:5F:D398:7A:149C:6C:159C:AA:1BA0:4A:5EA0:85:FCA8:8C:3EAC:8E:BDB8:31:B5B8:4F:D5B8:5C:5CB8:BA:66BC:83:85C0:D6:D5C4:61:C7C4:9D:EDC4:C0:0AC4:CB:76C8:3F:26C8:96:65CC:0D:CBCC:60:C8CC:76:45CC:AA:00CC:B0:B3D0:92:9ED4:8F:33D8:E2:DFDC:98:40E4:2A:ACE4:FA:DEE4:FB:1EE4:FE:D4E8:A7:2FE8:F6:73EC:46:84EC:59:E7EC:83:50F0:1D:BCF0:6E:0BF4:6A:D7F8:A9:86FC:8C:11