Hangzhou Asia Infrastructure Tech. Co., Ltd. - MAC Prefix 440377B (MA-M)

What this means

The IEEE assigned the MA-M block 440377B to Hangzhou Asia Infrastructure Tech. Co., Ltd.. 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 44:03:77:B, it is Hangzhou Asia Infrastructure Tech. Co., Ltd. hardware.

Frequently Asked Questions

Who owns MAC prefix 440377B?

440377B is registered to Hangzhou Asia Infrastructure Tech. Co., Ltd. in the IEEE MA-M registry.

What does the MA-M registry type mean?

An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Hangzhou Asia Infrastructure Tech. Co., Ltd.'s block covers 1,048,576 addresses.

What devices use 440377B?

Any network device with a MAC address starting 44:03:77:B was manufactured by or for Hangzhou Asia Infrastructure Tech. Co., Ltd..

OUI prefix	440377B
Vendor	Hangzhou Asia Infrastructure Tech. Co., Ltd.
Registry	MA-M (28-bit, medium block)
Block size	1,048,576 addresses
Country	CN
Other blocks by this vendor	1 total
Example MAC	44:03:77:B:00:00:00