78:CA:83:40:00:00 to 78:CA:83:4F:FF:FF

Pinhole (Beijing) Technology Co., Ltd.

MA-MChina1,048,576 addresses
Inspect this prefix

Registered address

Room 1001-008, No.1 Building, No. 3 Haidian Street, Haidian District
Beijing 100190
China

Block details

Registry
MA-M, MAC Address Block Medium (OUI-28)
Prefix
78:CA:83:4 /28
Addresses in block
1,048,576
Decimal range
132,811,180,736,512 to 132,811,181,785,087
Address type
Unicast, universally administered

What this block covers

A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.

Any MAC address between 78:CA:83:40:00:00 and 78:CA:83:4F:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.

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