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 Cisco Systems, Inc
Cisco Systems is one of the largest networking equipment makers. Its blocks appear on enterprise and service-provider hardware worldwide.
Devices that use these prefixes
- Switches and routers
- Wireless access points and controllers
- IP phones and video endpoints
- Firewalls and security appliances
Related companies
- Cisco Meraki: cloud-managed access points, switches and security appliances
- Cisco SPVTG: set-top boxes and cable equipment from the Service Provider Video Technology Group
Frequently asked questions
Do Cisco devices randomize their MAC addresses?
Infrastructure gear such as switches, routers and access points uses its registered, fixed addresses. Randomization applies to client devices like phones and laptops, not to this equipment.
Assignments by type
| Type | Count |
|---|---|
| MA-L | 1,258 |
Countries in IEEE's registration records
| Country | Blocks |
|---|---|
| 🇺🇸 United States | 1,257 |
| 🇬🇧 United Kingdom | 1 |
Download this organization's blocks
Get just these assignments as CSV or JSON, generated fresh from the live registry on every request.
1,258 registered prefixes