78:E9:96:10:00:00 to 78:E9:96:1F:FF:FF
COGITO TECH COMPANY LIMITED
Inspect this prefixRegistered address
21/F TAI YAU BLDG 181 JOHNSON RD WANCHAI HONG KONG
Hong Kong 999077
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 78:E9:96:1 /28
- Addresses in block
- 1,048,576
- Decimal range
- 132,944,640,344,064 to 132,944,641,392,639
- 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:E9:96:10:00:00 and 78:E9:96:1F: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.