Network address table

When I am working with infrastructure techs at various customers, I often need to explain how subnetting is done in Azure, why you should do it and also how network addressing works. 

I have been inspired to create a network addressing cheat sheet where I can read the different address spaces available.

/24 255.255.255.0	/25 255.255.255.128	/26 255.255.255.192	/27 255.255.255.224	/28 255.255.255.240	/29 255.255.255.252
256 addresses 251 in Azure	128 addresses 123 in Azure	64 addresses 59 in Azure	32 addresses 27 in Azure	16 addresses 11 in Azure	8 addresses 3 in Azure
0 – 255	0 – 127	0 – 63	0 – 31	0 – 15	0 – 7
					8 – 15
				16 – 31	16 – 23
					24 – 31
			32 – 63	32 – 47	32 – 39
					40 – 47
				48 – 63	48 – 55
					56 – 63
		64 – 127	64 – 95	64 – 79	64 – 71
					72 – 79
				80 – 95	80 – 87
					88 – 95
			96 – 127	96 – 111	96 – 103
					104 – 111
				112 – 127	112 – 119
					120 – 127
	128 – 255	128 – 191	128 – 159	128 – 143	128 – 135
					136 – 143
				144 – 159	144 – 151
					152 – 159
			160 – 191	160 – 175	160 – 167
					168 – 175
				176 – 191	176 – 183
					184 – 191
		192 – 255	192 – 223	192 – 207	192 – 199
					200 – 207
				208 – 223	208 – 215
					216 – 223
			224 – 255	224 – 239	224 – 231
					232 – 239
				240 – 255	240 – 247
					248 – 255

I often use this table for visualizing which network addresses are available in different address scopes.