5C:5D:EC:00:00:00 to 5C:5D:EC:FF:FF:FF
JiangSu Newcom Optical&Electrical Communication CO Ltd
Inspect this prefixRegistered address
17F, Guyang Century Mansion, NO 600 Zhujiang Road
Nanjing JiangSu 210018
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 5C:5D:EC /24
- Addresses in block
- 16,777,216
- Decimal range
- 101,558,461,136,896 to 101,558,477,914,111
- 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 5C:5D:EC:00:00:00 and 5C:5D:EC: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.