Handy References¶
IPv4 CIDR Table¶
CIDR |
Network Prefix Address |
Route Prefix |
Netmask |
Netmask (bits) |
Address Count |
Address Count 2^n |
|---|---|---|---|---|---|---|
255.255.255.255/32 |
255.255.255.255 |
32 |
255.255.255.255 |
11111111 11111111 11111111 11111111 |
1 |
0 |
255.255.255.254/31 |
255.255.255.254 |
31 |
255.255.255.254 |
11111111 11111111 11111111 11111110 |
2 |
1 |
255.255.255.252/30 |
255.255.255.252 |
30 |
255.255.255.252 |
11111111 11111111 11111111 11111100 |
4 |
2 |
255.255.255.248/29 |
255.255.255.248 |
29 |
255.255.255.248 |
11111111 11111111 11111111 11111000 |
8 |
3 |
255.255.255.240/28 |
255.255.255.240 |
28 |
255.255.255.240 |
11111111 11111111 11111111 11110000 |
16 |
4 |
255.255.255.224/27 |
255.255.255.224 |
27 |
255.255.255.224 |
11111111 11111111 11111111 11100000 |
32 |
5 |
255.255.255.192/26 |
255.255.255.192 |
26 |
255.255.255.192 |
11111111 11111111 11111111 11000000 |
64 |
6 |
255.255.255.128/25 |
255.255.255.128 |
25 |
255.255.255.128 |
11111111 11111111 11111111 10000000 |
128 |
7 |
255.255.255.0/24 |
255.255.255.0 |
24 |
255.255.255.0 |
11111111 11111111 11111111 00000000 |
256 |
8 |
255.255.254.0/23 |
255.255.254.0 |
23 |
255.255.254.0 |
11111111 11111111 11111110 00000000 |
512 |
9 |
255.255.252.0/22 |
255.255.252.0 |
22 |
255.255.252.0 |
11111111 11111111 11111100 00000000 |
1024 |
10 |
255.255.248.0/21 |
255.255.248.0 |
21 |
255.255.248.0 |
11111111 11111111 11111000 00000000 |
2048 |
11 |
255.255.240.0/20 |
255.255.240.0 |
20 |
255.255.240.0 |
11111111 11111111 11110000 00000000 |
4096 |
12 |
255.255.224.0/19 |
255.255.224.0 |
19 |
255.255.224.0 |
11111111 11111111 11100000 00000000 |
8192 |
13 |
255.255.192.0/18 |
255.255.192.0 |
18 |
255.255.192.0 |
11111111 11111111 11000000 00000000 |
16384 |
14 |
255.255.128.0/17 |
255.255.128.0 |
17 |
255.255.128.0 |
11111111 11111111 10000000 00000000 |
32768 |
15 |
255.255.0.0/16 |
255.255.0.0 |
16 |
255.255.0.0 |
11111111 11111111 00000000 00000000 |
65536 |
16 |
255.254.0.0/15 |
255.254.0.0 |
15 |
255.254.0.0 |
11111111 11111110 00000000 00000000 |
131072 |
17 |
255.252.0.0/14 |
255.252.0.0 |
14 |
255.252.0.0 |
11111111 11111100 00000000 00000000 |
262144 |
18 |
255.248.0.0/13 |
255.248.0.0 |
13 |
255.248.0.0 |
11111111 11111000 00000000 00000000 |
524288 |
19 |
255.240.0.0/12 |
255.240.0.0 |
12 |
255.240.0.0 |
11111111 11110000 00000000 00000000 |
1048576 |
20 |
255.224.0.0/11 |
255.224.0.0 |
11 |
255.224.0.0 |
11111111 11100000 00000000 00000000 |
2097152 |
21 |
255.192.0.0/10 |
255.192.0.0 |
10 |
255.192.0.0 |
11111111 11000000 00000000 00000000 |
4194304 |
22 |
255.128.0.0/9 |
255.128.0.0 |
9 |
255.128.0.0 |
11111111 10000000 00000000 00000000 |
8388608 |
23 |
255.0.0.0/8 |
255.0.0.0 |
8 |
255.0.0.0 |
11111111 00000000 00000000 00000000 |
16777216 |
24 |
254.0.0.0/7 |
254.0.0.0 |
7 |
254.0.0.0 |
11111110 00000000 00000000 00000000 |
33554432 |
25 |
252.0.0.0/6 |
252.0.0.0 |
6 |
252.0.0.0 |
11111100 00000000 00000000 00000000 |
67108864 |
26 |
248.0.0.0/5 |
248.0.0.0 |
5 |
248.0.0.0 |
11111000 00000000 00000000 00000000 |
134217728 |
27 |
240.0.0.0/4 |
240.0.0.0 |
4 |
240.0.0.0 |
11110000 00000000 00000000 00000000 |
268435456 |
28 |
224.0.0.0/3 |
224.0.0.0 |
3 |
224.0.0.0 |
11100000 00000000 00000000 00000000 |
536870912 |
29 |
192.0.0.0/2 |
192.0.0.0 |
2 |
192.0.0.0 |
11000000 00000000 00000000 00000000 |
1073741824 |
30 |
128.0.0.0/1 |
128.0.0.0 |
1 |
128.0.0.0 |
10000000 00000000 00000000 00000000 |
2147483648 |
31 |
0.0.0.0/0 |
0.0.0.0 |
0 |
0.0.0.0 |
00000000 00000000 00000000 00000000 |
4294967296 |
32 |
IPv6 CIDR Table¶
CIDR |
Network Prefix Address |
Route Prefix |
Address Count |
Address Count 2^n |
|---|---|---|---|---|
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff/128 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
128 |
1 |
0 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe/127 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe |
127 |
2 |
1 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc/126 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc |
126 |
4 |
2 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8/125 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8 |
125 |
8 |
3 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0/124 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0 |
124 |
16 |
4 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0/123 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0 |
123 |
32 |
5 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0/122 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0 |
122 |
64 |
6 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80/121 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80 |
121 |
128 |
7 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00/120 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00 |
120 |
256 |
8 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00/119 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00 |
119 |
512 |
9 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc00/118 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc00 |
118 |
1024 |
10 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:f800/117 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:f800 |
117 |
2048 |
11 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:f000/116 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:f000 |
116 |
4096 |
12 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:e000/115 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:e000 |
115 |
8192 |
13 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000/114 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000 |
114 |
16384 |
14 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:8000/113 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:8000 |
113 |
32768 |
15 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:0/112 |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:0 |
112 |
65536 |
16 |
ffff:ffff:ffff:ffff:ffff:ffff:fffe:0/111 |
ffff:ffff:ffff:ffff:ffff:ffff:fffe:0 |
111 |
131072 |
17 |
ffff:ffff:ffff:ffff:ffff:ffff:fffc:0/110 |
ffff:ffff:ffff:ffff:ffff:ffff:fffc:0 |
110 |
262144 |
18 |
ffff:ffff:ffff:ffff:ffff:ffff:fff8:0/109 |
ffff:ffff:ffff:ffff:ffff:ffff:fff8:0 |
109 |
524288 |
19 |
ffff:ffff:ffff:ffff:ffff:ffff:fff0:0/108 |
ffff:ffff:ffff:ffff:ffff:ffff:fff0:0 |
108 |
1048576 |
20 |
ffff:ffff:ffff:ffff:ffff:ffff:ffe0:0/107 |
ffff:ffff:ffff:ffff:ffff:ffff:ffe0:0 |
107 |
2097152 |
21 |
ffff:ffff:ffff:ffff:ffff:ffff:ffc0:0/106 |
ffff:ffff:ffff:ffff:ffff:ffff:ffc0:0 |
106 |
4194304 |
22 |
ffff:ffff:ffff:ffff:ffff:ffff:ff80:0/105 |
ffff:ffff:ffff:ffff:ffff:ffff:ff80:0 |
105 |
8388608 |
23 |
ffff:ffff:ffff:ffff:ffff:ffff:ff00:0/104 |
ffff:ffff:ffff:ffff:ffff:ffff:ff00:0 |
104 |
16777216 |
24 |
ffff:ffff:ffff:ffff:ffff:ffff:fe00:0/103 |
ffff:ffff:ffff:ffff:ffff:ffff:fe00:0 |
103 |
33554432 |
25 |
ffff:ffff:ffff:ffff:ffff:ffff:fc00:0/102 |
ffff:ffff:ffff:ffff:ffff:ffff:fc00:0 |
102 |
67108864 |
26 |
ffff:ffff:ffff:ffff:ffff:ffff:f800:0/101 |
ffff:ffff:ffff:ffff:ffff:ffff:f800:0 |
101 |
134217728 |
27 |
ffff:ffff:ffff:ffff:ffff:ffff:f000:0/100 |
ffff:ffff:ffff:ffff:ffff:ffff:f000:0 |
100 |
268435456 |
28 |
ffff:ffff:ffff:ffff:ffff:ffff:e000:0/99 |
ffff:ffff:ffff:ffff:ffff:ffff:e000:0 |
99 |
536870912 |
29 |
ffff:ffff:ffff:ffff:ffff:ffff:c000:0/98 |
ffff:ffff:ffff:ffff:ffff:ffff:c000:0 |
98 |
1073741824 |
30 |
ffff:ffff:ffff:ffff:ffff:ffff:8000:0/97 |
ffff:ffff:ffff:ffff:ffff:ffff:8000:0 |
97 |
2147483648 |
31 |
ffff:ffff:ffff:ffff:ffff:ffff::/96 |
ffff:ffff:ffff:ffff:ffff:ffff: |
96 |
4294967296 |
32 |
ffff:ffff:ffff:ffff:ffff:fffe::/95 |
ffff:ffff:ffff:ffff:ffff:fffe: |
95 |
8589934592 |
33 |
ffff:ffff:ffff:ffff:ffff:fffc::/94 |
ffff:ffff:ffff:ffff:ffff:fffc: |
94 |
17179869184 |
34 |
ffff:ffff:ffff:ffff:ffff:fff8::/93 |
ffff:ffff:ffff:ffff:ffff:fff8: |
93 |
34359738368 |
35 |
ffff:ffff:ffff:ffff:ffff:fff0::/92 |
ffff:ffff:ffff:ffff:ffff:fff0: |
92 |
68719476736 |
36 |
ffff:ffff:ffff:ffff:ffff:ffe0::/91 |
ffff:ffff:ffff:ffff:ffff:ffe0: |
91 |
137438953472 |
37 |
ffff:ffff:ffff:ffff:ffff:ffc0::/90 |
ffff:ffff:ffff:ffff:ffff:ffc0: |
90 |
274877906944 |
38 |
ffff:ffff:ffff:ffff:ffff:ff80::/89 |
ffff:ffff:ffff:ffff:ffff:ff80: |
89 |
549755813888 |
39 |
ffff:ffff:ffff:ffff:ffff:ff00::/88 |
ffff:ffff:ffff:ffff:ffff:ff00: |
88 |
1099511627776 |
40 |
ffff:ffff:ffff:ffff:ffff:fe00::/87 |
ffff:ffff:ffff:ffff:ffff:fe00: |
87 |
2199023255552 |
41 |
ffff:ffff:ffff:ffff:ffff:fc00::/86 |
ffff:ffff:ffff:ffff:ffff:fc00: |
86 |
4398046511104 |
42 |
ffff:ffff:ffff:ffff:ffff:f800::/85 |
ffff:ffff:ffff:ffff:ffff:f800: |
85 |
8796093022208 |
43 |
ffff:ffff:ffff:ffff:ffff:f000::/84 |
ffff:ffff:ffff:ffff:ffff:f000: |
84 |
17592186044416 |
44 |
ffff:ffff:ffff:ffff:ffff:e000::/83 |
ffff:ffff:ffff:ffff:ffff:e000: |
83 |
35184372088832 |
45 |
ffff:ffff:ffff:ffff:ffff:c000::/82 |
ffff:ffff:ffff:ffff:ffff:c000: |
82 |
70368744177664 |
46 |
ffff:ffff:ffff:ffff:ffff:8000::/81 |
ffff:ffff:ffff:ffff:ffff:8000: |
81 |
140737488355328 |
47 |
ffff:ffff:ffff:ffff:ffff::/80 |
ffff:ffff:ffff:ffff:ffff: |
80 |
281474976710656 |
48 |
ffff:ffff:ffff:ffff:fffe::/79 |
ffff:ffff:ffff:ffff:fffe: |
79 |
562949953421312 |
49 |
ffff:ffff:ffff:ffff:fffc::/78 |
ffff:ffff:ffff:ffff:fffc: |
78 |
1125899906842624 |
50 |
ffff:ffff:ffff:ffff:fff8::/77 |
ffff:ffff:ffff:ffff:fff8: |
77 |
2251799813685248 |
51 |
ffff:ffff:ffff:ffff:fff0::/76 |
ffff:ffff:ffff:ffff:fff0: |
76 |
4503599627370496 |
52 |
ffff:ffff:ffff:ffff:ffe0::/75 |
ffff:ffff:ffff:ffff:ffe0: |
75 |
9007199254740992 |
53 |
ffff:ffff:ffff:ffff:ffc0::/74 |
ffff:ffff:ffff:ffff:ffc0: |
74 |
18014398509481984 |
54 |
ffff:ffff:ffff:ffff:ff80::/73 |
ffff:ffff:ffff:ffff:ff80: |
73 |
36028797018963968 |
55 |
ffff:ffff:ffff:ffff:ff00::/72 |
ffff:ffff:ffff:ffff:ff00: |
72 |
72057594037927936 |
56 |
ffff:ffff:ffff:ffff:fe00::/71 |
ffff:ffff:ffff:ffff:fe00: |
71 |
144115188075855872 |
57 |
ffff:ffff:ffff:ffff:fc00::/70 |
ffff:ffff:ffff:ffff:fc00: |
70 |
288230376151711744 |
58 |
ffff:ffff:ffff:ffff:f800::/69 |
ffff:ffff:ffff:ffff:f800: |
69 |
576460752303423488 |
59 |
ffff:ffff:ffff:ffff:f000::/68 |
ffff:ffff:ffff:ffff:f000: |
68 |
1152921504606846976 |
60 |
ffff:ffff:ffff:ffff:e000::/67 |
ffff:ffff:ffff:ffff:e000: |
67 |
2305843009213693952 |
61 |
ffff:ffff:ffff:ffff:c000::/66 |
ffff:ffff:ffff:ffff:c000: |
66 |
4611686018427387904 |
62 |
ffff:ffff:ffff:ffff:8000::/65 |
ffff:ffff:ffff:ffff:8000: |
65 |
9223372036854775808 |
63 |
ffff:ffff:ffff:ffff::/64 |
ffff:ffff:ffff:ffff: |
64 |
18446744073709551616 |
64 |
ffff:ffff:ffff:fffe::/63 |
ffff:ffff:ffff:fffe: |
63 |
36893488147419103232 |
65 |
ffff:ffff:ffff:fffc::/62 |
ffff:ffff:ffff:fffc: |
62 |
73786976294838206464 |
66 |
ffff:ffff:ffff:fff8::/61 |
ffff:ffff:ffff:fff8: |
61 |
147573952589676412928 |
67 |
ffff:ffff:ffff:fff0::/60 |
ffff:ffff:ffff:fff0: |
60 |
295147905179352825856 |
68 |
ffff:ffff:ffff:ffe0::/59 |
ffff:ffff:ffff:ffe0: |
59 |
590295810358705651712 |
69 |
ffff:ffff:ffff:ffc0::/58 |
ffff:ffff:ffff:ffc0: |
58 |
1180591620717411303424 |
70 |
ffff:ffff:ffff:ff80::/57 |
ffff:ffff:ffff:ff80: |
57 |
2361183241434822606848 |
71 |
ffff:ffff:ffff:ff00::/56 |
ffff:ffff:ffff:ff00: |
56 |
4722366482869645213696 |
72 |
ffff:ffff:ffff:fe00::/55 |
ffff:ffff:ffff:fe00: |
55 |
9444732965739290427392 |
73 |
ffff:ffff:ffff:fc00::/54 |
ffff:ffff:ffff:fc00: |
54 |
18889465931478580854784 |
74 |
ffff:ffff:ffff:f800::/53 |
ffff:ffff:ffff:f800: |
53 |
37778931862957161709568 |
75 |
ffff:ffff:ffff:f000::/52 |
ffff:ffff:ffff:f000: |
52 |
75557863725914323419136 |
76 |
ffff:ffff:ffff:e000::/51 |
ffff:ffff:ffff:e000: |
51 |
151115727451828646838272 |
77 |
ffff:ffff:ffff:c000::/50 |
ffff:ffff:ffff:c000: |
50 |
302231454903657293676544 |
78 |
ffff:ffff:ffff:8000::/49 |
ffff:ffff:ffff:8000: |
49 |
604462909807314587353088 |
79 |
ffff:ffff:ffff::/48 |
ffff:ffff:ffff: |
48 |
1208925819614629174706176 |
80 |
ffff:ffff:fffe::/47 |
ffff:ffff:fffe: |
47 |
2417851639229258349412352 |
81 |
ffff:ffff:fffc::/46 |
ffff:ffff:fffc: |
46 |
4835703278458516698824704 |
82 |
ffff:ffff:fff8::/45 |
ffff:ffff:fff8: |
45 |
9671406556917033397649408 |
83 |
ffff:ffff:fff0::/44 |
ffff:ffff:fff0: |
44 |
19342813113834066795298816 |
84 |
ffff:ffff:ffe0::/43 |
ffff:ffff:ffe0: |
43 |
38685626227668133590597632 |
85 |
ffff:ffff:ffc0::/42 |
ffff:ffff:ffc0: |
42 |
77371252455336267181195264 |
86 |
ffff:ffff:ff80::/41 |
ffff:ffff:ff80: |
41 |
154742504910672534362390528 |
87 |
ffff:ffff:ff00::/40 |
ffff:ffff:ff00: |
40 |
309485009821345068724781056 |
88 |
ffff:ffff:fe00::/39 |
ffff:ffff:fe00: |
39 |
618970019642690137449562112 |
89 |
ffff:ffff:fc00::/38 |
ffff:ffff:fc00: |
38 |
1237940039285380274899124224 |
90 |
ffff:ffff:f800::/37 |
ffff:ffff:f800: |
37 |
2475880078570760549798248448 |
91 |
ffff:ffff:f000::/36 |
ffff:ffff:f000: |
36 |
4951760157141521099596496896 |
92 |
ffff:ffff:e000::/35 |
ffff:ffff:e000: |
35 |
9903520314283042199192993792 |
93 |
ffff:ffff:c000::/34 |
ffff:ffff:c000: |
34 |
19807040628566084398385987584 |
94 |
ffff:ffff:8000::/33 |
ffff:ffff:8000: |
33 |
39614081257132168796771975168 |
95 |
ffff:ffff::/32 |
ffff:ffff: |
32 |
79228162514264337593543950336 |
96 |
ffff:fffe::/31 |
ffff:fffe: |
31 |
158456325028528675187087900672 |
97 |
ffff:fffc::/30 |
ffff:fffc: |
30 |
316912650057057350374175801344 |
98 |
ffff:fff8::/29 |
ffff:fff8: |
29 |
633825300114114700748351602688 |
99 |
ffff:fff0::/28 |
ffff:fff0: |
28 |
1267650600228229401496703205376 |
100 |
ffff:ffe0::/27 |
ffff:ffe0: |
27 |
2535301200456458802993406410752 |
101 |
ffff:ffc0::/26 |
ffff:ffc0: |
26 |
5070602400912917605986812821504 |
102 |
ffff:ff80::/25 |
ffff:ff80: |
25 |
10141204801825835211973625643008 |
103 |
ffff:ff00::/24 |
ffff:ff00: |
24 |
20282409603651670423947251286016 |
104 |
ffff:fe00::/23 |
ffff:fe00: |
23 |
40564819207303340847894502572032 |
105 |
ffff:fc00::/22 |
ffff:fc00: |
22 |
81129638414606681695789005144064 |
106 |
ffff:f800::/21 |
ffff:f800: |
21 |
162259276829213363391578010288128 |
107 |
ffff:f000::/20 |
ffff:f000: |
20 |
324518553658426726783156020576256 |
108 |
ffff:e000::/19 |
ffff:e000: |
19 |
649037107316853453566312041152512 |
109 |
ffff:c000::/18 |
ffff:c000: |
18 |
1298074214633706907132624082305024 |
110 |
ffff:8000::/17 |
ffff:8000: |
17 |
2596148429267413814265248164610048 |
111 |
ffff::/16 |
ffff: |
16 |
5192296858534827628530496329220096 |
112 |
fffe::/15 |
fffe: |
15 |
10384593717069655257060992658440192 |
113 |
fffc::/14 |
fffc: |
14 |
20769187434139310514121985316880384 |
114 |
fff8::/13 |
fff8: |
13 |
41538374868278621028243970633760768 |
115 |
fff0::/12 |
fff0: |
12 |
83076749736557242056487941267521536 |
116 |
ffe0::/11 |
ffe0: |
11 |
166153499473114484112975882535043072 |
117 |
ffc0::/10 |
ffc0: |
10 |
332306998946228968225951765070086144 |
118 |
ff80::/9 |
ff80: |
9 |
664613997892457936451903530140172288 |
119 |
ff00::/8 |
ff00: |
8 |
1329227995784915872903807060280344576 |
120 |
fe00::/7 |
fe00: |
7 |
2658455991569831745807614120560689152 |
121 |
fc00::/6 |
fc00: |
6 |
5316911983139663491615228241121378304 |
122 |
f800::/5 |
f800: |
5 |
10633823966279326983230456482242756608 |
123 |
f000::/4 |
f000: |
4 |
21267647932558653966460912964485513216 |
124 |
e000::/3 |
e000: |
3 |
42535295865117307932921825928971026432 |
125 |
c000::/2 |
c000: |
2 |
85070591730234615865843651857942052864 |
126 |
8000::/1 |
8000: |
1 |
170141183460469231731687303715884105728 |
127 |
::/0 |
0 |
340282366920938463463374607431768211456 |
128 |
Valid IPv4 Netmasks¶
0.0.0.0 00000000 00000000 00000000 00000000
128.0.0.0 10000000 00000000 00000000 00000000
192.0.0.0 11000000 00000000 00000000 00000000
224.0.0.0 11100000 00000000 00000000 00000000
240.0.0.0 11110000 00000000 00000000 00000000
248.0.0.0 11111000 00000000 00000000 00000000
252.0.0.0 11111100 00000000 00000000 00000000
254.0.0.0 11111110 00000000 00000000 00000000
255.0.0.0 11111111 00000000 00000000 00000000
255.128.0.0 11111111 10000000 00000000 00000000
255.192.0.0 11111111 11000000 00000000 00000000
255.224.0.0 11111111 11100000 00000000 00000000
255.240.0.0 11111111 11110000 00000000 00000000
255.248.0.0 11111111 11111000 00000000 00000000
255.252.0.0 11111111 11111100 00000000 00000000
255.254.0.0 11111111 11111110 00000000 00000000
255.255.0.0 11111111 11111111 00000000 00000000
255.255.128.0 11111111 11111111 10000000 00000000
255.255.192.0 11111111 11111111 11000000 00000000
255.255.224.0 11111111 11111111 11100000 00000000
255.255.240.0 11111111 11111111 11110000 00000000
255.255.248.0 11111111 11111111 11111000 00000000
255.255.252.0 11111111 11111111 11111100 00000000
255.255.254.0 11111111 11111111 11111110 00000000
255.255.255.0 11111111 11111111 11111111 00000000
255.255.255.128 11111111 11111111 11111111 10000000
255.255.255.192 11111111 11111111 11111111 11000000
255.255.255.224 11111111 11111111 11111111 11100000
255.255.255.240 11111111 11111111 11111111 11110000
255.255.255.248 11111111 11111111 11111111 11111000
255.255.255.252 11111111 11111111 11111111 11111100
255.255.255.254 11111111 11111111 11111111 11111110
255.255.255.255 11111111 11111111 11111111 11111111