C4:C1:9F:00:00:00 to C4:C1:9F:FF:FF:FF
National Oilwell Varco Instrumentation, Monitoring, and Optimization (NOV IMO)
Registered address
1200 Cypress Creek Rd.
Cedar Park TX 78613
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- C4:C1:9F /24
- Addresses in block
- 16,777,216
- Decimal range
- 216,335,875,309,568 to 216,335,892,086,783
- Address type
- Unicast, universally administered
What this block covers
The classic 24 bit OUI. The registrant owns the first three octets and can assign every one of the remaining 16.7 million addresses.
Any MAC address between C4:C1:9F:00:00:00 and C4:C1:9F:FF:FF:FF belongs to this assignment. The registrant chooses the remaining 24 bits, so the same prefix can appear on very different products from the same company.
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