Addresses | Hosts | Netmask | Amount of a Class C | |
---|---|---|---|---|
/30 | 4 | 2 | 255.255.255.252 | 1/64 |
/29 | 8 | 6 | 255.255.255.248 | 1/32 |
/28 | 16 | 14 | 255.255.255.240 | 1/16 |
/27 | 32 | 30 | 255.255.255.224 | 1/8 |
/26 | 64 | 62 | 255.255.255.192 | 1/4 |
/25 | 128 | 126 | 255.255.255.128 | 1/2 |
/24 | 256 | 254 | 255.255.255.0 | 1 |
/23 | 512 | 510 | 255.255.254.0 | 2 |
/22 | 1024 | 1022 | 255.255.252.0 | 4 |
/21 | 2048 | 2046 | 255.255.248.0 | 8 |
/20 | 4096 | 4094 | 255.255.240.0 | 16 |
/19 | 8192 | 8190 | 255.255.224.0 | 32 |
/18 | 16384 | 16382 | 255.255.192.0 | 64 |
/17 | 32768 | 32766 | 255.255.128.0 | 128 |
/16 | 65536 | 65534 | 255.255.0.0 | 256 |
10.0.0.0 to 10.255.255.255 (10.0.0.0/8
)
172.16.0.0 to 172.31.255.255 (172.16.0.0/12
)
192.168.0.0 to 192.168.255.255 (192.168.0.0/16
)
169.254.0.0 to 169.254.255.255 (169.254.0.0/16
)
192.0.2.0 to 192.0.2.255 (192.0.2.0/24
)
/25 -- 2 Subnets -- 126 Hosts/Subnet
|
/30 -- 64 Subnets -- 2 Hosts/Subnet
|
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/26 -- 4 Subnets -- 62 Hosts/Subnet
|
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/27 -- 8 Subnets -- 30 Hosts/Subnet
|
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/28 -- 16 Subnets -- 14 Hosts/Subnet
|
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/29 -- 32 Subnets -- 6 Hosts/Subnet
|
Subnet | Hosts | Amount of a /64 |
---|---|---|
/128 | 1 | |
/127 | 2 | |
/126 | 4 | |
/125 | 8 | |
/124 | 16 | |
/123 | 32 | |
/122 | 64 | |
/121 | 128 | |
/120 | 256 | |
/119 | 512 | |
/118 | 1,024 | |
/117 | 2,048 | |
/116 | 4,096 | |
/115 | 8,192 | |
/114 | 16,384 | |
/113 | 32,768 | |
/112 | 65,536 | |
/111 | 131,072 | |
/110 | 262,144 | |
/109 | 524,288 | |
/108 | 1,048,576 | |
/107 | 2,097,152 | |
/106 | 4,194,304 | |
/105 | 8,388,608 | |
/104 | 16,777,216 | |
/103 | 33,554,432 | |
/102 | 67,108,864 | |
/101 | 134,217,728 | |
/100 | 268,435,456 | |
/99 | 536,870,912 | |
/98 | 1,073,741,824 | |
/97 | 2,147,483,648 | |
/96 | 4,294,967,296 | This is equivalent to an IPv4 Internet or IPv4 /8 |
/95 | 8,589,934,592 | |
/94 | 17,179,869,184 | |
/93 | 34,359,738,368 | |
/92 | 68,719,476,736 | |
/91 | 137,438,953,472 | |
/90 | 274,877,906,944 | |
/89 | 549,755,813,888 | |
/88 | 1,099,511,627,776 | |
/87 | 2,199,023,255,552 | 1/8,388,608 |
/86 | 4,398,046,511,104 | 1/4,194,304 |
/85 | 8,796,093,022,208 | 1/2,097,152 |
/84 | 17,592,186,044,416 | 1/1,048,576 |
/83 | 35,184,372,088,832 | 1/524,288 |
/82 | 70,368,744,177,664 | 1/262,144 |
/81 | 140,737,488,355,328 | 1/131,072 |
/80 | 281,474,976,710,656 | 1/65,536 |
/79 | 562,949,953,421,312 | 1/32,768 |
/78 | 1,125,899,906,842,620 | 1/16,384 |
/77 | 2,251,799,813,685,240 | 1/8,192 |
/76 | 4,503,599,627,370,490 | 1/4,096 |
/75 | 9,007,199,254,740,990 | 1/2,048 |
/74 | 18,014,398,509,481,900 | 1/1,024 |
/73 | 36,028,797,018,963,900 | 1/512 |
/72 | 72,057,594,037,927,900 | 1/256 |
/71 | 144,115,188,075,855,000 | 1/128 |
/70 | 288,230,376,151,711,000 | 1/64 |
/69 | 576,460,752,303,423,000 | 1/32 |
/68 | 1,152,921,504,606,840,000 | 1/16 |
/67 | 2,305,843,009,213,690,000 | 1/8 |
/66 | 4,611,686,018,427,380,000 | 1/4 |
/65 | 9,223,372,036,854,770,000 | 1/2 |
/64 | 18,446,744,073,709,500,000 | This is the standard end user allocation |
/63 | 36,893,488,147,419,100,000 | 2 |
/62 | 73,786,976,294,838,200,000 | 4 |
/61 | 147,573,952,589,676,000,000 | 8 |
/60 | 295,147,905,179,352,000,000 | 16 |
/59 | 590,295,810,358,705,000,000 | 32 |
/58 | 1,180,591,620,717,410,000,000 | 64 |
/57 | 2,361,183,241,434,820,000,000 | 128 |
/56 | 4,722,366,482,869,640,000,000 | 256 |
/55 | 9,444,732,965,739,290,000,000 | 512 |
/54 | 18,889,465,931,478,500,000,000 | 1,024 |
/53 | 37,778,931,862,957,100,000,000 | 2,048 |
/52 | 75,557,863,725,914,300,000,000 | 4,096 |
/51 | 151,115,727,451,828,000,000,000 | 8,192 |
/50 | 302,231,454,903,657,000,000,000 | 16,384 |
/49 | 604,462,909,807,314,000,000,000 | 32,768 |
/48 | 1,208,925,819,614,620,000,000,000 | 65,536 This is the standard business allocation |
/47 | 2,417,851,639,229,250,000,000,000 | 131,072 |
/46 | 4,835,703,278,458,510,000,000,000 | 262,144 |
/45 | 9,671,406,556,917,030,000,000,000 | 524,288 |
/44 | 19,342,813,113,834,000,000,000,000 | 1,048,576 |
/43 | 38,685,626,227,668,100,000,000,000 | 2,097,152 |
/42 | 77,371,252,455,336,200,000,000,000 | 4,194,304 |
/41 | 154,742,504,910,672,000,000,000,000 | 8,388,608 |
/40 | 309,485,009,821,345,000,000,000,000 | 16,777,216 |
/39 | 618,970,019,642,690,000,000,000,000 | 33,554,432 |
/38 | 1,237,940,039,285,380,000,000,000,000 | 67,108,864 |
/37 | 2,475,880,078,570,760,000,000,000,000 | 134,217,728 |
/36 | 4,951,760,157,141,520,000,000,000,000 | 268,435,456 |
/35 | 9,903,520,314,283,040,000,000,000,000 | 536,870,912 |
/34 | 19,807,040,628,566,000,000,000,000,000 | 1,073,741,824 |
/33 | 39,614,081,257,132,100,000,000,000,000 | 2,147,483,648 |
/32 | 79,228,162,514,264,300,000,000,000,000 | 4,294,967,296 This is the standard ISP Allocation |
/31 | 158,456,325,028,528,000,000,000,000,000 | 8,589,934,592 |
/30 | 316,912,650,057,057,000,000,000,000,000 | 17,179,869,184 |
/29 | 633,825,300,114,114,000,000,000,000,000 | 34,359,738,368 |
/28 | 1,267,650,600,228,220,000,000,000,000,000 | 68,719,476,736 |
/27 | 2,535,301,200,456,450,000,000,000,000,000 | |
/26 | 5,070,602,400,912,910,000,000,000,000,000 | |
/25 | 10,141,204,801,825,800,000,000,000,000,000 | |
/24 | 20,282,409,603,651,600,000,000,000,000,000 | |
/23 | 40,564,819,207,303,300,000,000,000,000,000 | |
/22 | 81,129,638,414,606,600,000,000,000,000,000 | |
/21 | 162,259,276,829,213,000,000,000,000,000,000 | |
/20 | 324,518,553,658,426,000,000,000,000,000,000 | |
/19 | 649,037,107,316,853,000,000,000,000,000,000 | |
/18 | 1,298,074,214,633,700,000,000,000,000,000,000 | |
/17 | 2,596,148,429,267,410,000,000,000,000,000,000 | |
/16 | 5,192,296,858,534,820,000,000,000,000,000,000 | |
/15 | 10,384,593,717,069,600,000,000,000,000,000,000 | |
/14 | 20,769,187,434,139,300,000,000,000,000,000,000 | |
/13 | 41,538,374,868,278,600,000,000,000,000,000,000 | |
/12 | 83,076,749,736,557,200,000,000,000,000,000,000 | |
/11 | 166,153,499,473,114,000,000,000,000,000,000,000 | |
/10 | 332,306,998,946,228,000,000,000,000,000,000,000 | |
/9 | 664,613,997,892,457,000,000,000,000,000,000,000 | |
/8 | 1,329,227,995,784,910,000,000,000,000,000,000,000 |