Protocol
Routable
Typical Application
TCP/IP
Yes
Unix; Windows NT; Windows 2000
NetBEUI
No
Small networks; Windows 95/98; Windows for Workgroups
IPX/SPX
NetWare compatibility
AppleTalk
Macintosh compatibility
DLC
IBM mainframes; some printers and print servers
Class
First Byte Range
Network /Host Octets
Number of Networks
Hosts per Network
A
1-126
1/3
126
16,777,214
B
128-191
2/2
16,382
65,534
C
192-223
3/1
2,097,150
254