What this means
The IEEE assigned the MA-L block 640F28 to 2Wire Inc. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 64:0F:28, it is 2Wire Inc hardware.
Frequently Asked Questions
Who owns MAC prefix 640F28?
640F28 is registered to 2Wire Inc in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. 2Wire Inc's block covers 16,777,216 addresses.
What devices use 640F28?
Any network device with a MAC address starting 64:0F:28 was manufactured by or for 2Wire Inc.