Who owns MAC prefix E45D51?

E45D51 is registered to SFR in the IEEE MA-L registry.

What devices use E45D51?

Any network device with a MAC address starting E4:5D:51 was manufactured by or for SFR.

MA-L · OUI prefix

SFR

Any MAC address starting E4:5D:51 is registered to SFR in FR.

OUI prefix	E45D51
Vendor	SFR
Registry	MA-L (24-bit, large block)
Country	FR
Example MAC	E4:5D:51:00:00:00

What this means

The IEEE assigned the MA-L block E45D51 to SFR. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting E4:5D:51, it is SFR hardware.

Other SFR prefixes

SFR holds 12 registered blocks in total.

001733 001D16 002515 249504 307ECB 44CE7D 6035C0 6C61F4 8C94CC CC2D1B E0A1D7

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