Usable Addresses
1
2
4
8
16
32
64
128
256
512
1,024
2,048
4,096
8,192
16,384
32,768
65,536
131,072
262,144
524,288
1,048,576
2,097,152
4,194,304
8,388,608
16,777,216
33,554,432
67,108,864
134,217,728
268,435,456
536,870,912
1,073,741,824
2,147,483,648
4,294,967,296
8,589,934,592
17,179,869,184
34,359,738,368
68,719,476,736
137,438,953,472
274,877,906,944
549,755,813,888
1,099,511,627,776
2,199,023,255,552
4,398,046,511,104
8,796,093,022,208
17,592,186,044,416
35,184,372,088,832
70,368,744,177,664
140,737,488,355,328
281,474,976,710,656
562,949,953,421,312
1,125,899,906,842,624
2,251,799,813,685,248
4,503,599,627,370,496
9,007,199,254,740,992
18,014,398,509,481,984
36,028,797,018,963,968
72,057,594,037,927,936
144,115,188,075,855,872
288,230,376,151,711,744
576,460,752,303,423,488
1,152,921,504,606,846,976
2,305,843,009,213,693,952
4,611,686,018,427,387,904
9,223,372,036,854,775,808
18,446,744,073,709,551,616
36,893,488,147,419,103,232
73,786,976,294,838,206,464
147,573,952,589,676,412,928
295,147,905,179,352,825,856
590,295,810,358,705,651,712
1,180,591,620,717,411,303,424
2,361,183,241,434,822,606,848
4,722,366,482,869,645,213,696
9,444,732,965,739,290,427,392
18,889,465,931,478,580,854,784
37,778,931,862,957,161,709,568
75,557,863,725,914,323,419,136
151,115,727,451,828,646,838,272
302,231,454,903,657,293,676,544
604,462,909,807,314,587,353,088
1,208,925,819,614,629,174,706,176
2,417,851,639,229,258,349,412,352
4,835,703,278,458,516,698,824,704
9,671,406,556,917,033,397,649,408
19,342,813,113,834,066,795,298,816
38,685,626,227,668,133,590,597,632
77,371,252,455,336,267,181,195,264
154,742,504,910,672,534,362,390,528
309,485,009,821,345,068,724,781,056
618,970,019,642,690,137,449,562,112
1,237,940,039,285,380,274,899,124,224
2,475,880,078,570,760,549,798,248,448
4,951,760,157,141,521,099,596,496,896
9,903,520,314,283,042,199,192,993,792
19,807,040,628,566,084,398,385,987,584
39,614,081,257,132,168,796,771,975,168
79,228,162,514,264,337,593,543,950,336
158,456,325,028,528,675,187,087,900,672
316,912,650,057,057,350,374,175,801,344
633,825,300,114,114,700,748,351,602,688
1,267,650,600,228,229,401,496,703,205,376
2,535,301,200,456,458,802,993,406,410,752
5,070,602,400,912,917,605,986,812,821,504
10,141,204,801,825,835,211,973,625,643,008
20,282,409,603,651,670,423,947,251,286,016
40,564,819,207,303,340,847,894,502,572,032
81,129,638,414,606,681,695,789,005,144,064
162,259,276,829,213,363,391,578,010,288,128
324,518,553,658,426,726,783,156,020,576,256
649,037,107,316,853,453,566,312,041,152,512
1,298,074,214,633,706,907,132,624,082,305,024
2,596,148,429,267,413,814,265,248,164,610,048
5,192,296,858,534,827,628,530,496,329,220,096
10,384,593,717,069,655,257,060,992,658,440,192
20,769,187,434,139,310,514,121,985,316,880,384
41,538,374,868,278,621,028,243,970,633,760,768
83,076,749,736,557,242,056,487,941,267,521,536
166,153,499,473,114,484,112,975,882,535,043,072
332,306,998,946,228,968,225,951,765,070,086,144
664,613,997,892,457,936,451,903,530,140,172,288
1,329,227,995,784,915,872,903,807,060,280,344,576
2,658,455,991,569,831,745,807,614,120,560,689,152
5,316,911,983,139,663,491,615,228,241,121,378,304
10,633,823,966,279,326,983,230,456,482,242,756,608
21,267,647,932,558,653,966,460,912,964,485,513,216
42,535,295,865,117,307,932,921,825,928,971,026,432
85,070,591,730,234,615,865,843,651,857,942,052,864
170,141,183,460,469,231,731,687,303,715,884,105,728
Available Subnets
/80 1 network
/79 2 networks
/78 4 networks
/77 8 networks
/76 16 networks
/75 32 networks
/74 64 networks
/73 128 networks
/72 256 networks
/71 512 networks
/70 1,024 networks
/69 2,048 networks
/68 4,096 networks
/67 8,192 networks
/66 16,384 networks
/65 32,768 networks
/64 65,536 networks
/63 131,072 networks
/62 262,144 networks
/61 524,288 networks
/60 1,048,576 networks
/59 2,097,152 networks
/58 4,194,304 networks
/57 8,388,608 networks
/56 16,777,216 networks
/55 33,554,432 networks
/54 67,108,864 networks
/53 134,217,728 networks
/52 268,435,456 networks
/51 536,870,912 networks
/50 1,073,741,824 networks
/49 2,147,483,648 networks
/48 4,294,967,296 networks
/47 8,589,934,592 networks
/46 17,179,869,184 networks
/45 34,359,738,368 networks
/44 68,719,476,736 networks
/43 137,438,953,472 networks
/42 274,877,906,944 networks
/41 549,755,813,888 networks
/40 1,099,511,627,776 networks
/39 2,199,023,255,552 networks
/38 4,398,046,511,104 networks
/37 8,796,093,022,208 networks
/36 17,592,186,044,416 networks
/35 35,184,372,088,832 networks
/34 70,368,744,177,664 networks
/33 140,737,488,355,328 networks
/32 281,474,976,710,656 networks
/31 562,949,953,421,312 networks
/30 1,125,899,906,842,624 networks
/29 2,251,799,813,685,248 networks
/28 4,503,599,627,370,496 networks
/27 9,007,199,254,740,992 networks
/26 18,014,398,509,481,984 networks
/25 36,028,797,018,963,968 networks
/24 72,057,594,037,927,936 networks
/23 144,115,188,075,855,872 networks
/22 288,230,376,151,711,744 networks
/21 576,460,752,303,423,488 networks
/20 1,152,921,504,606,846,976 networks
/19 2,305,843,009,213,693,952 networks
/18 4,611,686,018,427,387,904 networks
/17 9,223,372,036,854,775,808 networks
/16 18,446,744,073,709,551,616 networks
/15 36,893,488,147,419,103,232 networks
/14 73,786,976,294,838,206,464 networks
/13 147,573,952,589,676,412,928 networks
/12 295,147,905,179,352,825,856 networks
/11 590,295,810,358,705,651,712 networks
/10 1,180,591,620,717,411,303,424 networks
/9 2,361,183,241,434,822,606,848 networks
/8 4,722,366,482,869,645,213,696 networks
/7 9,444,732,965,739,290,427,392 networks
/6 18,889,465,931,478,580,854,784 networks
/5 37,778,931,862,957,161,709,568 networks
/4 75,557,863,725,914,323,419,136 networks
/3 151,115,727,451,828,646,838,272 networks
/2 302,231,454,903,657,293,676,544 networks
/1 604,462,909,807,314,587,353,088 networks