MAC Address Lookup / All vendors / Sercomm Japan Corporation
Sercomm Japan Corporation MAC address blocks The IEEE registry carries 4 blocks registered to Sercomm Japan Corporation, together 35.7 million addresses, first observed 23 Apr 2019, most recently 23 May 2025.
Registered in TW .
Sercomm Japan Corporation allocations
Cumulative address space by first-observed date on a linear scale sized to this chart; hover for date and total.
35.7 million
20 million
1998
2026
2004
2010
2016
2022
Cumulative address space by first-observed date on a linear scale sized to this chart; hover for date and total.
Prefix
Block
Addresses
Country
First registered
18:EF:C0 MA-L 16.8 million TW 27 Jan 2024 04:58:5D:5 MA-M 1 million TW 23 May 2025 4C:FB:FE MA-L 16.8 million TW 23 Apr 2019 74:25:84:9 MA-M 1 million TW 1 Oct 2024
Every block registered to Sercomm Japan Corporation in the IEEE registries, complete. Free-text search also matches former owners.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.