B4:5C:A4:00:00:00 to B4:5C:A4:FF:FF:FF
Thing-talk Wireless Communication Technologies Corporation Limited
Inspect this prefixRegistered address
498 Guo Shou Jing Road, Suite 10402
Shanghai 201203
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- B4:5C:A4 /24
- Addresses in block
- 16,777,216
- Decimal range
- 198,309,981,454,336 to 198,309,998,231,551
- 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 B4:5C:A4:00:00:00 and B4:5C: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.