DOD 22-Bit RFID Tags

For DOD, one in 1,048,000 is not unique enough ...

Bob Brewin writes, at FCW.com ...

... "Savi used a 20-bit datastore for the serial numbers, Weaver said, which meant that a total of 1,048,575 serial numbers were available. Weaver said that to continue providing unique serial numbers for active RFID tags, Savi had to move to a 22-bit datastore, which will generate roughly 3 million more serial numbers. " ...

DOD RFID architecture needs to increase the bit size of RFID tags to accommodate the number of items being tracked.