Class A 0.0.0.0 - 127.255.255.255 Class B 128.0.0.0 - 191.255.255.255 Class C 192.0.0.0 - 223.255.255.255 Class D 224.0.0.0 - 239.255.255.255 Class E 240.0.0.0 - 247.255.255.255
class A 0.0.0.0 - 126.255.255.255 class B 128.0.0.0-191.255.255.255 class c 192.0.0.0-223.255.255.255 class d 224.0.0.0-239.255.255.255 class e 240.0.0.0-247.255.255.255
dear i am not included on 127.0.0.1 to 127.255.255.255 this is use on loopback adapter uses for checking on phisical connectivity on your lan card your lan card is working yes or no pls ping on 127 .0.0.1 if repply working now and not than your lan card not working so 127 is checking on your lan card connectivity issue
class A 0.0.0.0 126.255.255.255 class B 128.0.0.0 191.255.255.255 class c 192.0.0.0 223.255.255.255 class D 224.0.0.0 239.255.255.255 class E 240.0.0.0 255.255.255.255