i.e. 127 bits with the 128th (left hand most bit) being 0, and 127 bits with the 128th bit being 1. Those are the two halves of the address apce.
Your right. I should have said half the bits of capacity.
But with each residential subscriber we waste 18,446,744,073,709,551,615 to 18,446,744,073,709,551,600 IP addresses or 4,294,967,296 IPv4s worth of addresses
