Interpret a UUID
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Your input: acf399c2-2158-11f1-8378-4cf95d479851
Various notations:
URN: urn:uuid:acf399c2-2158-11f1-8378-4cf95d479851
URI: uuid:acf399c2-2158-11f1-8378-4cf95d479851
Microsoft GUID syntax: {ACF399C2-2158-11F1-8378-4CF95D479851}
C++ struct syntax: { 0xacf399c2, 0x2158, 0x11f1, { 0x83, 0x78, 0x4c, 0xf9, 0x5d, 0x47, 0x98, 0x51 } }
As OID (ISO/ITU-T 128 bits): 2.25.229892062000881855257643493686524745809
As OID (Microsoft): 1.2.840.113556.1.8000.2554.44275.39362.8536.4593.33656.5044573.4692049
As OID (Waterjuice 2x64 bits): 1.3.6.1.4.1.54392.1.12462473652926419441.9473406450069379153
As OID (Waterjuice 4x32 bits): 1.3.6.1.4.1.54392.2.2901645762.559419889.2205699321.1564973137
As OID (Waterjuice 8x16 bits): 1.3.6.1.4.1.54392.3.44275.39362.8536.4593.33656.19705.23879.38993
Interpretation of the UUID:
Variant: [0b10_] RFC 4122 (Leach-Mealling-Salz) / DCE 1.1
Version: [0x1] Time-based with unique host identifier
Timestamp: [0x1f12158acf399c2] 2026-03-16 16:53:36'7680450 GMT
Clock ID: [0x8378] 888
Node ID: [0x4cf95d479851] 4C-F9-5D-47-98-51
In case that this Node ID is a MAC address, here is the interpretation of that MAC address:
Input: 4C-F9-5D-47-98-51
Type: EUI-48 (Extended Unique Identifier)
EUI-48 or MAC-48: 4C-F9-5D-47-98-51
EUI-64: 4C-F9-5D-FF-FF-47-98-51 (MAC-48 to EUI-64 Encapsulation)
4C-F9-5D-FF-FE-47-98-51 (EUI-48 to EUI-64 Encapsulation)
4E-F9-5D-FF-FE-47-98-51 (MAC/EUI-48 to Modified EUI-64 Encapsulation)
IPv6-Link-Local address: fe80::4ef9:5dff:fe47:9851
Administration type (U/L flag): [0] Universally Administered Address (UAA)
Transmission type (I/G flag): [0] Unicast (Individual)
IEEE OUI (MA-L): 0x4CF95D
Vendor-specific part: 0x479851
Registrant: HUAWEI TECHNOLOGIES CO.,LTD
Address of registrant: No.2 Xin Cheng Road, Room R6,Songshan Lake Technology Park
Dongguan 523808
CN