18:40:A4:00:00:00 to 18:40:A4:FF:FF:FF
Shenzhen Trylong Smart Science and Technology Co., Ltd.
Inspect this prefixRegistered address
15E, qingdian building, No#6007, Binhe road, futian district
Shenzhen city Guangdong Province 518100
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 18:40:A4 /24
- Addresses in block
- 16,777,216
- Decimal range
- 26,665,908,436,992 to 26,665,925,214,207
- Address type
- Unicast, universally administered
What this block covers
The classic 24 bit OUI. The registrant owns the first three octets and can assign every one of the remaining 16.7 million addresses.
Any MAC address between 18:40:A4:00:00:00 and 18:40:A4:FF:FF:FF belongs to this assignment. The registrant chooses the remaining 24 bits, so the same prefix can appear on very different products from the same company.