CRESYN

CRESYN holds 5 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by CRESYN draw from a pool of about 83,886,080 possible MAC addresses in total.

Registered address: 8-22,Jamwon-dong Seoul Seocho-Gu KR #137-902

All 5 prefixes

• 00:18:0900:18:09:00:00:00 – 00:18:09:FF:FF:FF
• 14:06:A714:06:A7:00:00:00 – 14:06:A7:FF:FF:FF
• 30:53:C130:53:C1:00:00:00 – 30:53:C1:FF:FF:FF
• 74:45:CE74:45:CE:00:00:00 – 74:45:CE:FF:FF:FF
• E8:9E:13E8:9E:13:00:00:00 – E8:9E:13:FF:FF:FF

Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.