B4:30:C0:00:00:00 to B4:30:C0:FF:FF:FF
York Instruments Ltd
Inspect this prefixRegistered address
The Biocentre, York Science Park
York North Yorkshire YO10 5NY
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- B4:30:C0 /24
- Addresses in block
- 16,777,216
- Decimal range
- 198,121,472,655,360 to 198,121,489,432,575
- 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 B4:30:C0:00:00:00 and B4:30:C0: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.