Every MAC/OUI block IEEE has registered to this exact organization name, combined.
Registered nameTunstall A/S
Total assignments5
Total address capacity20,480
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 Tunstall A/S
Tunstall is an English digital health and care technology company, founded in 1957, with several million connected users worldwide.
Devices that use these prefixes
- Telecare alarms and home monitoring devices
Assignments by type
| Type | Count |
|---|---|
| MA-S | 5 |
Countries in IEEE's registration records
| Country | Blocks |
|---|---|
| 🇩🇰 Denmark | 5 |
Download this organization's blocks
Get just these assignments as CSV or JSON, generated fresh from the live registry on every request.
5 registered prefixes
Prefix
Type
70:B3:D5:13:90:00 /36
MA-S
70:B3:D5:2F:80:00 /36
MA-S
70:B3:D5:A1:70:00 /36
MA-S
8C:1F:64:C5:90:00 /36
MA-S
8C:1F:64:F2:C0:00 /36
MA-S
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