User:Onthost/IP Ranges

Here is a table of all IP address ranges: Subnet Mask 	 	# of Addresses 		  	  	Subnet Mask 	  	# of Addresses /1 	 	128.0.0.0 	  	2.1 billion 	    	/17 	  	255.255.128.0 	  	32,766 /2 	 	192.0.0.0 	  	1 billion 	    	/18 	  	255.255.192.0 	  	16,382 /3 	 	224.0.0.0 	  	536 million 	    	/19 	  	255.255.224.0 	  	8,190 /4 	 	240.0.0.0 	  	268 million 	    	/20 	  	255.255.240.0 	  	4,094 /5 	 	248.0.0.0 	  	134 million 	    	/21 	  	255.255.248.0 	  	2,046 /6 	 	252.0.0.0 	  	67 million 	    	/22 	  	255.255.252.0 	  	1,022 /7 	 	254.0.0.0 	  	34 million 	    	/23 	  	255.255.254.0 	  	510 /8 	 	255.0.0.0 	  	17 million (Class A) 	/24 	  	255.255.255.0 	  	254 (Class C) /9 	  	255.128.0.0 	  	8.4 million 	    	/25 	  	255.255.255.128 	126 /10 	 	255.192.0.0 	  	4.2 million 	    	/26 	  	255.255.255.192 	62 /11 	 	255.224.0.0 	  	2.1 million 	    	/27 	  	255.255.255.224 	30 /12 	 	255.240.0.0 	  	1 million 	    	/28 	  	255.255.255.240 	14 /13 	 	255.248.0.0 	  	524 thousand 	    	/29 	  	255.255.255.248 	6 /14 	 	255.252.0.0 	  	262 thousand 	    	/30 	  	255.255.255.252 	2 /15 	 	255.254.0.0 	  	131 thousand 	    	/31 	  	255.255.255.254 	RFC 3021 /16 	 	255.255.0.0 	  	65,534 (Class B) 	/32 	  	255.255.255.255. Loopback address