CIDR table between IPv4 and IPv6 addresses

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IPv4 (32bits)       | IPv6 (128bits)
--------------------|------------------------
/32 = Single IP     | /128 = Single IP
/31 = 2             | /127 = 2
/30 = 4             | /126 = 4
/29 = 8             | /125 = 8
/28 = 16            | /124 = 16
/27 = 32            | /123 = 32
/26 = 64            | /122 = 64
/25 = 128           | /121 = 128
/24 = 256           | /120 = 256
/23 = 512           | /119 = 512
/22 = 1,024         | /118 = 1,024
/21 = 2,048         | /117 = 2,048
/20 = 4,096         | /116 = 4,096
/19 = 8,192         | /115 = 8,192
/18 = 16,384        | /114 = 16,384
/17 = 32,768        | /113 = 32,768
/16 = 65,536        | /112 = 65,536
/15 = 131,072       | /111 = 131,072

/14 = 262,144       | /110 = 262,144
/13 = 524,288       | /109 = 524,288
/12 = 1,048,576     | /108 = 1,048,576
/11 = 2,097,152     | /107 = 2,097,152
/10 = 4,194,304     | /106 = 4,194,304
/9 = 8,388,608      | /105 = 8,388,608
/8 = 16,777,216     | /104 = 16,777,216
/7 = 33,554,432     | /103 = 33,554,432
/6 = 67,108,864     | /102 = 67,108,864
/5 = 134,217,728    | /101 = 134,217,728
/4 = 268.435,456    | /100 = 268.435,456
/3 = 536,870,912    | /99 = 536,870,912
/2 = 1,073,741,824  | /98 = 1,073,741,824
/1 = 2,147,483,648  | /97 = 2,147,483,648
/0 = 4,294,967,296  | /96 = 4,294,967,296
N/A                 | /95 = 8,589,934,592
N/A                 | /94 = 17,179,869,184
N/A                 | /93 = 34,359,738,368
N/A                 | /92 = 68,719,476,736
N/A                 | /91 = 137,438,953,472
N/A                 | /90 = 274,877,906,944
N/A                 | /89 = 549,755,813,888
N/A                 | /88 = 1,099,511,627,776
N/A                 | /87 = 2,199,023,255,552
N/A                 | /86 = 4,398,046,511,104
N/A                 | /85 = 8,796,093,022,208
N/A                 | /84 = 17,592,186,044,416
N/A                 | /83 = 35,184,372,088,832
N/A                 | /82 = 70,368,744,177,664
N/A                 | /81 = 140,737,488,355,328
N/A                 | /80 = 281,474,976,710,656
N/A                 | /79 = 562,949,953,421,312
N/A                 | /78 = 1,125,899,906,842,624
N/A                 | /77 = 2,251,799,813,685,248
N/A                 | /76 = 4,503,599,627,370,496
N/A                 | /75 = 9,007,199,254,740,992
N/A                 | /74 = 18,014,398,509,481,984
N/A                 | /73 = 36,028,797,018,963,968
N/A                 | /72 = 72,057,594,037,927,936
N/A                 | /71 = 144,115,188,075,855,872
N/A                 | /70 = 288,230,376,151,711,744
N/A                 | /69 = 576,460,752,303,423,488
N/A                 | /68 = 1,152,921,504,606,846,976
N/A                 | /67 = 2,305,843,009,213,693,952
N/A                 | /66 = 4,611,686,018,427,387,904
N/A                 | /65 = 9,223,372,036,854,775,808
N/A                 | /64 = 18,446,744,073,709,551,616
N/A                 | /63 = 36,893,488,147,419,103,232
N/A                 | /62 = 73,786,976,294,838,206,464
N/A                 | /61 = 147,573,952,589,676,412,928
N/A                 | /60 = 295,147,905,179,352,825,856
N/A                 | /59 = 590,295,810,358,705,651,712
N/A                 | /58 = 1,180,591,620,717,411,303,424
N/A                 | /57 = 2,361,183,241,434,822,606,848
N/A                 | /56 = 4,722,366,482,869,645,213,696
N/A                 | /55 = 9,444,732,965,739,290,427,392
N/A                 | /54 = 18,889,465,931,478,580,854,784
N/A                 | /53 = 37,778,931,862,957,161,709,568
N/A                 | /52 = 75,557,863,725,914,323,419,136
N/A                 | /51 = 151,115,727,451,828,646,838,272
N/A                 | /50 = 302,231,454,903,657,293,676,544
N/A                 | /49 = 604,462,909,807,314,587,353,088
N/A                 | /48 = 1,208,925,819,614,629,174,706,176
N/A                 | /47 = 2,417,851,639,229,258,349,412,35
N/A                 | /46 = 4,835,703,278,458,516,698,824,70
N/A                 | /45 = 9,671,406,556,917,033,397,649,40
N/A                 | /44 = 19,342,813,113,834,066,795,298,81
N/A                 | /43 = 38,685,626,227,668,133,590,597,632
N/A                 | /42 = 77,371,252,455,336,267,181,195,264
N/A                 | /41 = 154,742,504,910,672,534,362,390,528
N/A                 | /40 = 309,485,009,821,345,068,724,781,056
N/A                 | /39 = 618,970,019,642,690,137,449,562,112
N/A                 | /38 = 1,237,940,039,285,380,274,899,124,224
N/A                 | /37 = 2,475,880,078,570,760,549,798,248,448
N/A                 | /36 = 4,951,760,157,141,521,099,596,496,896
N/A                 | /35 = 9,903,520,314,283,042,199,192,993,792
N/A                 | /34 = 19,807,040,628,566,084,398,385,987,584
N/A                 | /33 = 39,614,081,257,132,168,796,771,975,168
N/A                 | /32 = 79,228,162,514,264,337,593,543,950,336
N/A                 | /31 = 158,456,325,028,528,675,187,087,900,672
N/A                 | /30 = 316,912,650,057,057,350,374,175,801,344
N/A                 | /29 = 633,825,300,114,114,700,748,351,602,688
N/A                 | /28 = 1,267,650,600,228,229,401,496,703,205,376
N/A                 | /27 = 2,535,301,200,456,458,802,993,406,410,752
N/A                 | /26 = 5,070,602,400,912,917,605,986,812,821,504
N/A                 | /25 = 10,141,204,801,825,835,211,973,625,643,008
N/A                 | /24 = 20,282,409,603,651,670,423,947,251,286,016
N/A                 | /23 = 40,564,819,207,303,340,847,894,502,572,032
N/A                 | /22 = 81,129,638,414,606,681,695,789,005,144,064
N/A                 | /21 = 162,280,286,840,214,464,602,688,010,288,128
N/A                 | /20 = 324,518,553,658,426,726,783,156,020,576,256
N/A                 | /19 = 649,037,107,316,853,453,566,312,041,152,512
N/A                 | /18 = 1,298,074,214,633,706,907,132,624,082,305,024
N/A                 | /17 = 2,596,148,429,267,413,814,265,248,164,610,048
N/A                 | /16 = 5,192,296,858,534,827,628,530,496,329,220,096

Conclusion: Total amount of IP's for IPv4 is 2^32 while IPv6 is 2^128

Sumber: http://www.net6.at/?q=cidr