40:D8:55:0B:10:00 to 40:D8:55:0B:1F:FF
Nanjing TIANSU Automation Control System Co., Ltd.
Inspect this prefixRegistered address
Building 5, New Town Science & Technology Park
Nanjing 210019
Block details
- Registry
- IAB, Individual Address Block (IAB)
- Prefix
- 40:D8:55:0B:1 /36
- Addresses in block
- 4,096
- Decimal range
- 71,297,883,901,952 to 71,297,883,906,047
- Address type
- Unicast, universally administered
What this block covers
The retired predecessor to MA-S, the same size and issued from a handful of IEEE owned prefixes. No new IABs have been issued since 2014, but existing ones remain valid.
Any MAC address between 40:D8:55:0B:10:00 and 40:D8:55:0B:1F:FF belongs to this assignment. The registrant chooses the remaining 12 bits, so the same prefix can appear on very different products from the same company.