Every MAC/OUI block IEEE has registered to this exact organization name, combined.
Registered nameMarconi Communications
Total assignments3
Total address capacity50,331,648
First tracked hereAug 22, 2026
Last changed hereAug 22, 2026
SourceIEEE Registration Authority
Vendor registration identifies the organization holding a block, not a specific device model, product line, or manufacturing date. This page combines every block IEEE has registered under this exact organization name; it doesn't mean every address in every listed block is currently shipping in a real device.
About Marconi Communications
Marconi Communications was the telecommunications arm of Britain's General Electric Company between 1998 and 2005. Its blocks appear on older carrier equipment.
Devices that use these prefixes
- Legacy carrier networking equipment
Assignments by type
| Type | Count |
|---|---|
| MA-L | 3 |
Countries in IEEE's registration records
| Country | Blocks |
|---|---|
| 🇺🇸 United States | 3 |
Download this organization's blocks
Get just these assignments as CSV or JSON, generated fresh from the live registry on every request.
3 registered prefixes
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