MAC prefix 8C:1F:64:CF:E
Instrument Development Group (IDG) at Johns Hopkins University
| Vendor | Instrument Development Group (IDG) at Johns Hopkins University |
|---|---|
| Short name | InstrumentDe |
| Prefix | 8C:1F:64:CF:E/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 8C:1F:64:CF:E0:00 – 8C:1F:64:CF:EF:FF |
| Notations | 8C:1F:64:CF:E0:008C-1F-64-CF-E0-008c1f.64cf.e0008C1F64CFE000 |
Frequently asked questions
Which vendor does MAC address 8C:1F:64:CF:E belong to?
MAC addresses starting with 8C:1F:64:CF:E are assigned to Instrument Development Group (IDG) at Johns Hopkins University according to the IEEE registry (prefix length 36 bits).
How many addresses does block 8C:1F:64:CF:E contain?
The block contains 4,096 addresses from 8C:1F:64:CF:E0:00 to 8C:1F:64:CF:EF:FF.
Is 8C:1F:64:CF:E a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).
How do I find the MAC address of my device?
On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.