Last Updated: Monday, 26 May 2025 By: Steve Warner

Decimal IP Address:	2886727488	( http://2886727488 )
IP Address:	172.15.247.64/28	( 0xAC0FF740 )
Subnet Mask:	255.255.255.240	( 0xFFFFFFF0 )
Wildcard (Inverse) Mask:	0.0.0.15	( 0x0000000F )
Network Address:	172.15.247.64	( 0xAC0FF740 )
Broadcast Address:	172.15.247.79	( 0xAC0FF74F )
Binary IP Address:	10101100.00001111.11110111.01000000
Binary Subnet Mask:	11111111.11111111.11111111.11110000
AND
Binary Network Address:	10101100.00001111.11110111.01000000
Binary Broadcast Address:	10101100.00001111.11110111.01001111
Class of Address:	B
Number of Subnets:	4096
Number of IP:	16
Number of Useable Hosts:	14
in-addr.arpa format:	64.247.15.172.in-addr.arpa
Hostname:	adsl-172-15-247-64.lightspeed.iplsin.sbcglobal.net
GEOIP Location:	US - United States
NAT64 Address:	64:FF9B::AC0F:F740
ISATAP Address:	FE80::0200:5EFE:AC0F:F740
mapped IPV4:	::ffff:AC0F:F740::/48
6to4:	2002:AC0F:F740::/48

<Prev


Subnet  Network             First Usable IP     Last Usable IP      Broadcast
0       172.15.247.0        172.15.247.1        172.15.247.14       172.15.247.15       
1       172.15.247.16       172.15.247.17       172.15.247.30       172.15.247.31       
2       172.15.247.32       172.15.247.33       172.15.247.46       172.15.247.47       
3       172.15.247.48       172.15.247.49       172.15.247.62       172.15.247.63       
4       172.15.247.64       172.15.247.65       172.15.247.78       172.15.247.79       
5       172.15.247.80       172.15.247.81       172.15.247.94       172.15.247.95       
6       172.15.247.96       172.15.247.97       172.15.247.110      172.15.247.111      
7       172.15.247.112      172.15.247.113      172.15.247.126      172.15.247.127      
8       172.15.247.128      172.15.247.129      172.15.247.142      172.15.247.143      
9       172.15.247.144      172.15.247.145      172.15.247.158      172.15.247.159      
10      172.15.247.160      172.15.247.161      172.15.247.174      172.15.247.175      
11      172.15.247.176      172.15.247.177      172.15.247.190      172.15.247.191      
12      172.15.247.192      172.15.247.193      172.15.247.206      172.15.247.207      
13      172.15.247.208      172.15.247.209      172.15.247.222      172.15.247.223      
14      172.15.247.224      172.15.247.225      172.15.247.238      172.15.247.239      
15      172.15.247.240      172.15.247.241      172.15.247.254      172.15.247.255      


Next>


        CIDR Block          Network             Broadcast           Subnet Mask         No. IP's
        172.15.247.64/32    172.15.247.64    -  172.15.247.64       255.255.255.255     1              
        172.15.247.64/31    172.15.247.64    -  172.15.247.65       255.255.255.254     2              
        172.15.247.64/30    172.15.247.64    -  172.15.247.67       255.255.255.252     4              
        172.15.247.64/29    172.15.247.64    -  172.15.247.71       255.255.255.248     8              
        172.15.247.64/28    172.15.247.64    -  172.15.247.79       255.255.255.240     16             
        172.15.247.64/27    172.15.247.64    -  172.15.247.95       255.255.255.224     32             
        172.15.247.64/26    172.15.247.64    -  172.15.247.127      255.255.255.192     64             
        172.15.247.0/25     172.15.247.0     -  172.15.247.127      255.255.255.128     128            
        172.15.247.0/24     172.15.247.0     -  172.15.247.255      255.255.255.0       256            
        172.15.246.0/23     172.15.246.0     -  172.15.247.255      255.255.254.0       512            
        172.15.244.0/22     172.15.244.0     -  172.15.247.255      255.255.252.0       1024           
        172.15.240.0/21     172.15.240.0     -  172.15.247.255      255.255.248.0       2048           
        172.15.240.0/20     172.15.240.0     -  172.15.255.255      255.255.240.0       4096           
        172.15.224.0/19     172.15.224.0     -  172.15.255.255      255.255.224.0       8192           
        172.15.192.0/18     172.15.192.0     -  172.15.255.255      255.255.192.0       16384          
        172.15.128.0/17     172.15.128.0     -  172.15.255.255      255.255.128.0       32768          
        172.15.0.0/16       172.15.0.0       -  172.15.255.255      255.255.0.0         65536          
        172.14.0.0/15       172.14.0.0       -  172.15.255.255      255.254.0.0         131072         
        172.12.0.0/14       172.12.0.0       -  172.15.255.255      255.252.0.0         262144         
        172.8.0.0/13        172.8.0.0        -  172.15.255.255      255.248.0.0         524288         
        172.0.0.0/12        172.0.0.0        -  172.15.255.255      255.240.0.0         1048576        
        172.0.0.0/11        172.0.0.0        -  172.31.255.255      255.224.0.0         2097152        
        172.0.0.0/10        172.0.0.0        -  172.63.255.255      255.192.0.0         4194304        
        172.0.0.0/9         172.0.0.0        -  172.127.255.255     255.128.0.0         8388608        
        172.0.0.0/8         172.0.0.0        -  172.255.255.255     255.0.0.0           16777216       
        172.0.0.0/7         172.0.0.0        -  173.255.255.255     254.0.0.0           33554432       
        172.0.0.0/6         172.0.0.0        -  175.255.255.255     252.0.0.0           67108864       
        168.0.0.0/5         168.0.0.0        -  175.255.255.255     248.0.0.0           134217728      
        160.0.0.0/4         160.0.0.0        -  175.255.255.255     240.0.0.0           268435456      
        160.0.0.0/3         160.0.0.0        -  191.255.255.255     224.0.0.0           536870912      
        128.0.0.0/2         128.0.0.0        -  191.255.255.255     192.0.0.0           1073741824     
        128.0.0.0/1         128.0.0.0        -  255.255.255.255     128.0.0.0           2147483648