Interpret a UUID
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Your input: f9f49fb8-8a4a-11f1-a948-4cf95d479851
Various notations:
URN: urn:uuid:f9f49fb8-8a4a-11f1-a948-4cf95d479851
URI: uuid:f9f49fb8-8a4a-11f1-a948-4cf95d479851
Microsoft GUID syntax: {F9F49FB8-8A4A-11F1-A948-4CF95D479851}
C++ struct syntax: { 0xf9f49fb8, 0x8a4a, 0x11f1, { 0xa9, 0x48, 0x4c, 0xf9, 0x5d, 0x47, 0x98, 0x51 } }
As OID (ISO/ITU-T 128 bits): 2.25.332247930907833910138735640754723985489
As OID (Microsoft): 1.2.840.113556.1.8000.2554.63988.40888.35402.4593.43336.5044573.4692049
As OID (Waterjuice 2x64 bits): 1.3.6.1.4.1.54392.1.18011196424704365041.12198084224628529233
As OID (Waterjuice 4x32 bits): 1.3.6.1.4.1.54392.2.4193558456.2320110065.2840087801.1564973137
As OID (Waterjuice 8x16 bits): 1.3.6.1.4.1.54392.3.63988.40888.35402.4593.43336.19705.23879.38993
Interpretation of the UUID:
Variant: [0b10_] RFC 4122 (Leach-Mealling-Salz) / DCE 1.1
Version: [0x1] Time-based with unique host identifier
Timestamp: [0x1f18a4af9f49fb8] 2026-07-28 06:10:05'0967480 GMT
Clock ID: [0xa948] 10568
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
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