74:19:F8:20:00:00 to 74:19:F8:2F:FF:FF
Symtop Instrument Co.
Inspect this prefixRegistered address
Haidianqu Xueqinglu Xuezhixuan 613
Haidianqu Beijing 100083
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 74:19:F8:2 /28
- Addresses in block
- 1,048,576
- Decimal range
- 127,654,885,851,136 to 127,654,886,899,711
- Address type
- Unicast, universally administered
What this block covers
A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.
Any MAC address between 74:19:F8:20:00:00 and 74:19:F8:2F:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.