Subnet Table For IPv4 Cheat Sheet by danh

Type	Hosts	Netmask	Hex Value
/1	2048 M	128.0.0.0	80.00.0­0.00
/2	1024 M	192.0.0.0	C0.00.0­0.00
/3	512 M	224.0.0.0	E0.00.0­0.00
/4	256 M	240.0.0.0	F0.00.0­0.00
/5	128 M	248.0.0.0	F8.00.0­0.00
/6	64 M	252.0.0.0	FC.00.0­0.00
/7	32 M	254.0.0.0	FE.00.0­0.00
/8	16 M	255.0.0.0	FF.00.0­0.00

Type	Host	Netmask	Hex Value
/9	8 M	255.12­8.0.0	FF.80.0­0.00
/10	4 M	255.19­2.0.0	FF.C0.0­0.00
/11	2 M	255.22­4.0.0	FF.E0.0­0.00
/12	1024 K	255.24­0.0.0	FF.F0.0­0.00
/13	512 K	255.24­8.0.0	FF.F8.0­0.00
/14	256 K	255.25­2.0.0	FF.FC.0­0.00
/15	128 K	255.25­4.0.0	FF.FE.0­0.00
/16	64 K	255.25­5.0.0	FF.FF.0­0.00

Type	Hosts	Netmask	Hex Value
/17	32 K	255.25­5.128.0	FF.FF.8­0.00
/18	16 K	255.25­5.192.0	FF.FF.C­0.00
/19	8 K	255.25­5.224.0	FF.FF.E­0.00
/20	4 K	255.25­5.240.0	FF.FF.F­0.00
/21	2 K	255.25­5.248.0	FF.FF.F­8.00
/22	1 K	255.25­5.252.0	FF.FF.F­C.00
/23	512	255.25­5.254.0	FF.FF.F­E.00
/24	256	255.25­5.255.0	FF.FF.F­F.00
/25	128	255.25­5.2­55.128	FF.FF.F­F.80
/26	64	255.25­5.2­55.192	FF.FF.F­F.C0
/27	32	255.25­5.2­55.224	FF.FF.F­F.E0
/28	16	255.25­5.2­55.240	FF.FF.F­F.F0
/29	8	255.25­5.2­55.248	FF.FF.F­F.F8
/30	4	255.25­5.2­55.252	FF.FF.F­F.FC
/31	2	255.25­5.2­55.254	FF.FF.F­F.FE
/32	1	255.25­5.2­55.255	FF.FF.F­F.FF