IPv6 Subnet Mask Cheat Sheet

by
PrefixIP AddressesAmount of a /64
/1281
/1272
/1264
/1258
/12416
/12332
/12264
/121128
/120256
/119512
/1181,024
/1172,048
/1164,096
/1158,192
/11416,384
/11332,768
/11265,536
/111131,072
/110262,144
/109524,288
/1081,048,576
/1072,097,152
/1064,194,304
/1058,388,608
/10416,777,216This is equivalent to an IPv4 Internet or IPv4 /8
/10333,554,432
/10267,108,864
/101134,217,728
/100268,435,456
/99536,870,912
/981,073,741,824
/972,147,483,648
/964,294,967,296
/958,589,934,592
/9417,179,869,184
/9334,359,738,368
/9268,719,476,736
/91137,438,953,472
/90274,877,906,944
/89549,755,813,888
/881,099,511,627,776
/872,199,023,255,5521/8,388,608
/864,398,046,511,1041/4,194,304
/858,796,093,022,2081/2,097,152
/8417,592,186,044,4161/1,048,576
/8335,184,372,088,8321/524,288
/8270,368,744,177,6641/262,144
/81140,737,488,355,3281/131,072
/80281,474,976,710,6561/65,536
/79562,949,953,421,3121/32,768
/781,125,899,906,842,6201/16,384
/772,251,799,813,685,2401/8,192
/764,503,599,627,370,4901/4,096
/759,007,199,254,740,9901/2,048
/7418,014,398,509,481,9001/1,024
/7336,028,797,018,963,9001/512
/7272,057,594,037,927,9001/256
/71144,115,188,075,855,0001/128
/70288,230,376,151,711,0001/64
/69576,460,752,303,423,0001/32
/681,152,921,504,606,840,0001/16
/672,305,843,009,213,690,0001/8
/664,611,686,018,427,380,0001/4
/659,223,372,036,854,770,0001/2
/6418,446,744,073,709,500,000This is the standard end user allocation
/6336,893,488,147,419,100,0002
/6273,786,976,294,838,200,0004
/61147,573,952,589,676,000,0008
/60295,147,905,179,352,000,00016
/59590,295,810,358,705,000,00032
/581,180,591,620,717,410,000,00064
/572,361,183,241,434,820,000,000128
/564,722,366,482,869,640,000,000256
/559,444,732,965,739,290,000,000512
/5418,889,465,931,478,500,000,0001,024
/5337,778,931,862,957,100,000,0002,048
/5275,557,863,725,914,300,000,0004,096
/51151,115,727,451,828,000,000,0008,192
/50302,231,454,903,657,000,000,00016,384
/49604,462,909,807,314,000,000,00032,768
/481,208,925,819,614,620,000,000,00065,536 This is the standard business allocation
/472,417,851,639,229,250,000,000,000131,072
/464,835,703,278,458,510,000,000,000262,144
/459,671,406,556,917,030,000,000,000524,288
/4419,342,813,113,834,000,000,000,0001,048,576
/4338,685,626,227,668,100,000,000,0002,097,152
/4277,371,252,455,336,200,000,000,0004,194,304
/41154,742,504,910,672,000,000,000,0008,388,608
/40309,485,009,821,345,000,000,000,00016,777,216
/39618,970,019,642,690,000,000,000,00033,554,432
/381,237,940,039,285,380,000,000,000,00067,108,864
/372,475,880,078,570,760,000,000,000,000134,217,728
/364,951,760,157,141,520,000,000,000,000268,435,456
/359,903,520,314,283,040,000,000,000,000536,870,912
/3419,807,040,628,566,000,000,000,000,0001,073,741,824
/3339,614,081,257,132,100,000,000,000,0002,147,483,648
/3279,228,162,514,264,300,000,000,000,0004,294,967,296 This is the standard ISP Allocation
/31158,456,325,028,528,000,000,000,000,0008,589,934,592
/30316,912,650,057,057,000,000,000,000,00017,179,869,184
/29633,825,300,114,114,000,000,000,000,00034,359,738,368
/281,267,650,600,228,220,000,000,000,000,00068,719,476,736
/272,535,301,200,456,450,000,000,000,000,000
/265,070,602,400,912,910,000,000,000,000,000
/2510,141,204,801,825,800,000,000,000,000,000
/2420,282,409,603,651,600,000,000,000,000,000
/2340,564,819,207,303,300,000,000,000,000,000
/2281,129,638,414,606,600,000,000,000,000,000
/21162,259,276,829,213,000,000,000,000,000,000
/20324,518,553,658,426,000,000,000,000,000,000
/19649,037,107,316,853,000,000,000,000,000,000
/181,298,074,214,633,700,000,000,000,000,000,000
/172,596,148,429,267,410,000,000,000,000,000,000
/165,192,296,858,534,820,000,000,000,000,000,000
/1510,384,593,717,069,600,000,000,000,000,000,000
/1420,769,187,434,139,300,000,000,000,000,000,000
/1341,538,374,868,278,600,000,000,000,000,000,000
/1283,076,749,736,557,200,000,000,000,000,000,000
/11166,153,499,473,114,000,000,000,000,000,000,000
/10332,306,998,946,228,000,000,000,000,000,000,000
/9664,613,997,892,457,000,000,000,000,000,000,000
/81,329,227,995,784,910,000,000,000,000,000,000,000

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