AA:78:A3:00:00:00 to AA:78:A3:FF:FF:FF
Dongguan Yiertek Co., Ltd
Inspect this prefixRegistered address
Room 901, Building 4, Xinlikang Industrial Park, Huangchong
Dongguan China 523000
Block details
- Registry
- CID, Company ID (CID)
- Prefix
- AA:78:A3 /24
- Addresses in block
- 16,777,216
- Decimal range
- 187,435,107,483,648 to 187,435,124,260,863
- Address type
- Unicast, locally administered
What this block covers
A 24 bit identifier that looks like an OUI but is explicitly not for globally unique addresses. The local bit is set, so CID addresses are locally administered by definition.
Any MAC address between AA:78:A3:00:00:00 and AA:78:A3: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.