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

Decimal IP Address:	315534557	( http://315534557 )
IP Address:	18.206.172.221/30	( 0x12CEACDD )
Subnet Mask:	255.255.255.252	( 0xFFFFFFFC )
Wildcard (Inverse) Mask:	0.0.0.3	( 0x00000003 )
Network Address:	18.206.172.220	( 0x12CEACDC )
Broadcast Address:	18.206.172.223	( 0x12CEACDF )
Binary IP Address:	00010010.11001110.10101100.11011101
Binary Subnet Mask:	11111111.11111111.11111111.11111100
AND
Binary Network Address:	00010010.11001110.10101100.11011100
Binary Broadcast Address:	00010010.11001110.10101100.11011111
Class of Address:	A
Number of Subnets:	4194304
Number of IP:	4
Number of Useable Hosts:	2
in-addr.arpa format:	221.172.206.18.in-addr.arpa
Hostname:	ec2-18-206-172-221.compute-1.amazonaws.com
GEOIP Location:	US - United States
NAT64 Address:	64:FF9B::12CE:ACDD
ISATAP Address:	FE80::0200:5EFE:12CE:ACDD
mapped IPV4:	::ffff:12CE:ACDD::/48
6to4:	2002:12CE:ACDD::/48

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Subnet  Network             First Usable IP     Last Usable IP      Broadcast
0       18.206.172.0        18.206.172.1        18.206.172.2        18.206.172.3        
1       18.206.172.4        18.206.172.5        18.206.172.6        18.206.172.7        
2       18.206.172.8        18.206.172.9        18.206.172.10       18.206.172.11       
3       18.206.172.12       18.206.172.13       18.206.172.14       18.206.172.15       
4       18.206.172.16       18.206.172.17       18.206.172.18       18.206.172.19       
5       18.206.172.20       18.206.172.21       18.206.172.22       18.206.172.23       
6       18.206.172.24       18.206.172.25       18.206.172.26       18.206.172.27       
7       18.206.172.28       18.206.172.29       18.206.172.30       18.206.172.31       
8       18.206.172.32       18.206.172.33       18.206.172.34       18.206.172.35       
9       18.206.172.36       18.206.172.37       18.206.172.38       18.206.172.39       
10      18.206.172.40       18.206.172.41       18.206.172.42       18.206.172.43       
11      18.206.172.44       18.206.172.45       18.206.172.46       18.206.172.47       
12      18.206.172.48       18.206.172.49       18.206.172.50       18.206.172.51       
13      18.206.172.52       18.206.172.53       18.206.172.54       18.206.172.55       
14      18.206.172.56       18.206.172.57       18.206.172.58       18.206.172.59       
15      18.206.172.60       18.206.172.61       18.206.172.62       18.206.172.63       
16      18.206.172.64       18.206.172.65       18.206.172.66       18.206.172.67       
17      18.206.172.68       18.206.172.69       18.206.172.70       18.206.172.71       
18      18.206.172.72       18.206.172.73       18.206.172.74       18.206.172.75       
19      18.206.172.76       18.206.172.77       18.206.172.78       18.206.172.79       
20      18.206.172.80       18.206.172.81       18.206.172.82       18.206.172.83       
21      18.206.172.84       18.206.172.85       18.206.172.86       18.206.172.87       
22      18.206.172.88       18.206.172.89       18.206.172.90       18.206.172.91       
23      18.206.172.92       18.206.172.93       18.206.172.94       18.206.172.95       
24      18.206.172.96       18.206.172.97       18.206.172.98       18.206.172.99       
25      18.206.172.100      18.206.172.101      18.206.172.102      18.206.172.103      
26      18.206.172.104      18.206.172.105      18.206.172.106      18.206.172.107      
27      18.206.172.108      18.206.172.109      18.206.172.110      18.206.172.111      
28      18.206.172.112      18.206.172.113      18.206.172.114      18.206.172.115      
29      18.206.172.116      18.206.172.117      18.206.172.118      18.206.172.119      
30      18.206.172.120      18.206.172.121      18.206.172.122      18.206.172.123      
31      18.206.172.124      18.206.172.125      18.206.172.126      18.206.172.127      
32      18.206.172.128      18.206.172.129      18.206.172.130      18.206.172.131      
33      18.206.172.132      18.206.172.133      18.206.172.134      18.206.172.135      
34      18.206.172.136      18.206.172.137      18.206.172.138      18.206.172.139      
35      18.206.172.140      18.206.172.141      18.206.172.142      18.206.172.143      
36      18.206.172.144      18.206.172.145      18.206.172.146      18.206.172.147      
37      18.206.172.148      18.206.172.149      18.206.172.150      18.206.172.151      
38      18.206.172.152      18.206.172.153      18.206.172.154      18.206.172.155      
39      18.206.172.156      18.206.172.157      18.206.172.158      18.206.172.159      
40      18.206.172.160      18.206.172.161      18.206.172.162      18.206.172.163      
41      18.206.172.164      18.206.172.165      18.206.172.166      18.206.172.167      
42      18.206.172.168      18.206.172.169      18.206.172.170      18.206.172.171      
43      18.206.172.172      18.206.172.173      18.206.172.174      18.206.172.175      
44      18.206.172.176      18.206.172.177      18.206.172.178      18.206.172.179      
45      18.206.172.180      18.206.172.181      18.206.172.182      18.206.172.183      
46      18.206.172.184      18.206.172.185      18.206.172.186      18.206.172.187      
47      18.206.172.188      18.206.172.189      18.206.172.190      18.206.172.191      
48      18.206.172.192      18.206.172.193      18.206.172.194      18.206.172.195      
49      18.206.172.196      18.206.172.197      18.206.172.198      18.206.172.199      
50      18.206.172.200      18.206.172.201      18.206.172.202      18.206.172.203      
51      18.206.172.204      18.206.172.205      18.206.172.206      18.206.172.207      
52      18.206.172.208      18.206.172.209      18.206.172.210      18.206.172.211      
53      18.206.172.212      18.206.172.213      18.206.172.214      18.206.172.215      
54      18.206.172.216      18.206.172.217      18.206.172.218      18.206.172.219      
55      18.206.172.220      18.206.172.221      18.206.172.222      18.206.172.223      
56      18.206.172.224      18.206.172.225      18.206.172.226      18.206.172.227      
57      18.206.172.228      18.206.172.229      18.206.172.230      18.206.172.231      
58      18.206.172.232      18.206.172.233      18.206.172.234      18.206.172.235      
59      18.206.172.236      18.206.172.237      18.206.172.238      18.206.172.239      
60      18.206.172.240      18.206.172.241      18.206.172.242      18.206.172.243      
61      18.206.172.244      18.206.172.245      18.206.172.246      18.206.172.247      
62      18.206.172.248      18.206.172.249      18.206.172.250      18.206.172.251      
63      18.206.172.252      18.206.172.253      18.206.172.254      18.206.172.255      


Next>


        CIDR Block          Network             Broadcast           Subnet Mask         No. IP's
        18.206.172.221/32   18.206.172.221   -  18.206.172.221      255.255.255.255     1              
        18.206.172.220/31   18.206.172.220   -  18.206.172.221      255.255.255.254     2              
        18.206.172.220/30   18.206.172.220   -  18.206.172.223      255.255.255.252     4              
        18.206.172.216/29   18.206.172.216   -  18.206.172.223      255.255.255.248     8              
        18.206.172.208/28   18.206.172.208   -  18.206.172.223      255.255.255.240     16             
        18.206.172.192/27   18.206.172.192   -  18.206.172.223      255.255.255.224     32             
        18.206.172.192/26   18.206.172.192   -  18.206.172.255      255.255.255.192     64             
        18.206.172.128/25   18.206.172.128   -  18.206.172.255      255.255.255.128     128            
        18.206.172.0/24     18.206.172.0     -  18.206.172.255      255.255.255.0       256            
        18.206.172.0/23     18.206.172.0     -  18.206.173.255      255.255.254.0       512            
        18.206.172.0/22     18.206.172.0     -  18.206.175.255      255.255.252.0       1024           
        18.206.168.0/21     18.206.168.0     -  18.206.175.255      255.255.248.0       2048           
        18.206.160.0/20     18.206.160.0     -  18.206.175.255      255.255.240.0       4096           
        18.206.160.0/19     18.206.160.0     -  18.206.191.255      255.255.224.0       8192           
        18.206.128.0/18     18.206.128.0     -  18.206.191.255      255.255.192.0       16384          
        18.206.128.0/17     18.206.128.0     -  18.206.255.255      255.255.128.0       32768          
        18.206.0.0/16       18.206.0.0       -  18.206.255.255      255.255.0.0         65536          
        18.206.0.0/15       18.206.0.0       -  18.207.255.255      255.254.0.0         131072         
        18.204.0.0/14       18.204.0.0       -  18.207.255.255      255.252.0.0         262144         
        18.200.0.0/13       18.200.0.0       -  18.207.255.255      255.248.0.0         524288         
        18.192.0.0/12       18.192.0.0       -  18.207.255.255      255.240.0.0         1048576        
        18.192.0.0/11       18.192.0.0       -  18.223.255.255      255.224.0.0         2097152        
        18.192.0.0/10       18.192.0.0       -  18.255.255.255      255.192.0.0         4194304        
        18.128.0.0/9        18.128.0.0       -  18.255.255.255      255.128.0.0         8388608        
        18.0.0.0/8          18.0.0.0         -  18.255.255.255      255.0.0.0           16777216       
        18.0.0.0/7          18.0.0.0         -  19.255.255.255      254.0.0.0           33554432       
        16.0.0.0/6          16.0.0.0         -  19.255.255.255      252.0.0.0           67108864       
        16.0.0.0/5          16.0.0.0         -  23.255.255.255      248.0.0.0           134217728      
        16.0.0.0/4          16.0.0.0         -  31.255.255.255      240.0.0.0           268435456      
        0.0.0.0/3           0.0.0.0          -  31.255.255.255      224.0.0.0           536870912      
        0.0.0.0/2           0.0.0.0          -  63.255.255.255      192.0.0.0           1073741824     
        0.0.0.0/1           0.0.0.0          -  127.255.255.255     128.0.0.0           2147483648