Microchip Technology Inc.

Microchip Technology Inc. holds 16 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by Microchip Technology Inc. draw from a pool of about 268,435,456 possible MAC addresses in total.

Registered address: 2355 W Chandler Blvd Chandler AZ US 85224-6199

All 16 prefixes

• 00:04:A300:04:A3:00:00:00 – 00:04:A3:FF:FF:FF
• 00:1E:C000:1E:C0:00:00:00 – 00:1E:C0:FF:FF:FF
• 04:91:6204:91:62:00:00:00 – 04:91:62:FF:FF:FF
• 0C:02:5B0C:02:5B:00:00:00 – 0C:02:5B:FF:FF:FF
• 40:84:3240:84:32:00:00:00 – 40:84:32:FF:FF:FF
• 44:B7:D044:B7:D0:00:00:00 – 44:B7:D0:FF:FF:FF
• 54:10:EC54:10:EC:00:00:00 – 54:10:EC:FF:FF:FF
• 60:8A:1060:8A:10:00:00:00 – 60:8A:10:FF:FF:FF
• 68:27:1968:27:19:00:00:00 – 68:27:19:FF:FF:FF
• 80:1F:1280:1F:12:00:00:00 – 80:1F:12:FF:FF:FF
• 80:34:2880:34:28:00:00:00 – 80:34:28:FF:FF:FF
• 9C:95:6E9C:95:6E:00:00:00 – 9C:95:6E:FF:FF:FF
• D8:47:8FD8:47:8F:00:00:00 – D8:47:8F:FF:FF:FF
• D8:80:39D8:80:39:00:00:00 – D8:80:39:FF:FF:FF
• E8:EB:1BE8:EB:1B:00:00:00 – E8:EB:1B:FF:FF:FF
• FC:0F:E7FC:0F:E7:00:00:00 – FC:0F:E7:FF:FF:FF

Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.