00:1B:C5:04:2 Chamsys Ltd
Every MAC address from 00:1B:C5:04:20:00 to 00:1B:C5:04:2F:FF belongs to a block the IEEE assigned to Chamsys Ltd. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1B:C5:04:2 belongs to
Written 00:1B:C5:04:2, 00-1B-C5-04-2 or 001BC5042, depending on the system. Look up a full address.
Prefix
00:1B:C5:04:2/36
Organization
Chamsys Ltd
Registry
MA-S (36 bits)
Addresses
4,096
First address
00:1B:C5:04:20:00
Last address
00:1B:C5:04:2F:FF
Address type
Globally unique, unicast
Registered address
Unit 3B Richmond Works Southampton Hampshire GB SO15 3FQ
Parent block
Inside 00:1B:C5
This MA-S block is carved from the 24-bit block 00:1B:C5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to Chamsys Ltd
2 more blocks registered under the same name.