00:1B:C5:04:3 Coincident, Inc.
Every MAC address from 00:1B:C5:04:30:00 to 00:1B:C5:04:3F:FF belongs to a block the IEEE assigned to Coincident, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1B:C5:04:3 belongs to
Written 00:1B:C5:04:3, 00-1B-C5-04-3 or 001BC5043, depending on the system. Look up a full address.
Prefix
00:1B:C5:04:3/36
Organization
Coincident, Inc.
Registry
MA-S (36 bits)
Addresses
4,096
First address
00:1B:C5:04:30:00
Last address
00:1B:C5:04:3F:FF
Address type
Globally unique, unicast
Registered address
337 Summer Street Boston MA US 02210
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.