TCP/IP Networking Address Classes

Class Range Leftmost Bits Network Bits Networks Host Bits Hosts Reserved - Non Internet Subnet Mask
A 1 - 127 0 8 126 24 16,777,214 10.0.0.0 - 10.255.255.255 255.0.0.0
B 128 - 191 16 16 16,384 16 65,534 172.16.0.0 - 172.31.255.255 255.240.0.0
C 192 - 223 24 24 2,097,152 8 254 192.168.0.0 - 192.168.255.255 255.255.255.0

 

Telephone Wiring Color Diagram

MEMORIZE THESE COLORS!
Blue Orange Green Brown Slate White Red Black Yellow Violet
                   
Bell Operators Give Better Service We Ride Big Yellow Vehicles