00:21:8B:00:00:00 to 00:21:8B:FF:FF:FF
Wescon Technology, Inc.
Inspect this prefixRegistered address
4655-170 Old Ironsides Drive
Santa Clara California 95054
Block details
- Registry
- MA-L, MAC Address Block Large (OUI)
- Prefix
- 00:21:8B /24
- Addresses in block
- 16,777,216
- Decimal range
- 144,065,953,792 to 144,082,731,007
- 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 00:21:8B:00:00:00 and 00:21:8B: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.