EC:3F:05:00:00:00 to EC:3F:05:FF:FF:FF
Institute 706, The Second Academy China Aerospace Science & Industry Corp
Registered address
YongDing Road ,HaiDian District.BeiJing ,No.51
BeiJing 100854
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- EC:3F:05 /24
- Addresses in block
- 16,777,216
- Decimal range
- 259,755,410,980,864 to 259,755,427,758,079
- 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 EC:3F:05:00:00:00 and EC:3F:05: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.
Look up another MAC address
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