This is a list of countries by IPv4 address allocation.
The Internet Assigned Numbers Authority (IANA) distributes large blocks of addresses to regional Internet registries (RIRs), which then assign them to national Internet registries and local Internet registries within their respective service regions. [1] While IPv4 allows for a theoretical maximum of 232 addresses (approximately 4.3 billion), the number available for public use is smaller due to reserved blocks for private and special purposes. [2]
# | Location | IP addresses [3] | % | Population [4] | IP addresses |
---|---|---|---|---|---|
(total world allocation) | 3,686,428,804 | 100 | 8,091,734,930 | 456 | |
1 | United States | 1,611,092,316 | 43.70 | 343,477,335 | 4,691 |
2 | China | 343,122,788 | 9.31 | 1,422,584,933 | 241 |
3 | Japan | 189,146,280 | 5.13 | 124,370,947 | 1,521 |
4 | United Kingdom | 134,326,992 | 3.64 | 68,682,962 | 1,956 |
5 | Germany | 124,181,024 | 3.37 | 84,548,231 | 1,469 |
6 | South Korea | 112,495,296 | 3.05 | 51,748,739 | 2,174 |
7 | Brazil | 87,095,968 | 2.36 | 211,140,729 | 413 |
8 | France | 82,056,668 | 2.23 | 66,438,822 | 1,235 |
9 | Canada | 67,971,036 | 1.84 | 39,299,105 | 1,730 |
10 | Italy | 54,019,108 | 1.47 | 59,499,453 | 908 |
11 | Netherlands | 48,103,792 | 1.30 | 18,092,524 | 2,659 |
12 | Australia | 46,443,960 | 1.26 | 26,451,124 | 1,756 |
13 | Russia | 44,862,456 | 1.22 | 145,440,500 | 308 |
14 | India | 41,620,608 | 1.13 | 1,438,069,596 | 29 |
15 | Taiwan | 35,714,976 | 0.97 | 23,317,145 | 1,532 |
16 | Spain | 32,384,740 | 0.88 | 47,911,579 | 676 |
17 | Sweden | 31,069,612 | 0.84 | 10,551,494 | 2,945 |
18 | Mexico | 28,990,436 | 0.79 | 129,739,759 | 223 |
19 | South Africa | 27,076,204 | 0.73 | 63,212,384 | 428 |
20 | Singapore | 26,575,776 | 0.72 | 5,789,090 | 4,591 |
21 | Switzerland | 25,298,216 | 0.69 | 8,870,561 | 2,852 |
22 | Egypt | 24,147,252 | 0.66 | 114,535,772 | 211 |
23 | Poland | 19,971,212 | 0.54 | 38,762,844 | 515 |
24 | Argentina | 19,446,368 | 0.53 | 45,538,401 | 427 |
25 | Indonesia | 18,982,856 | 0.51 | 281,190,067 | 68 |
26 | Colombia | 17,372,724 | 0.47 | 52,321,152 | 332 |
27 | Turkey | 16,702,240 | 0.45 | 87,270,501 | 191 |
28 | Vietnam | 16,407,648 | 0.45 | 100,352,192 | 164 |
29 | Norway | 15,553,616 | 0.42 | 5,519,167 | 2,818 |
30 | Finland | 13,708,400 | 0.37 | 5,601,185 | 2,447 |
Hong Kong | 13,154,584 | 0.36 | 7,442,734 | 1,767 | |
31 | Belgium | 12,354,316 | 0.34 | 11,712,893 | 1,055 |
32 | Morocco | 12,271,580 | 0.33 | 37,712,505 | 325 |
33 | Denmark | 11,968,444 | 0.32 | 5,948,136 | 2,012 |
34 | Iran | 11,476,984 | 0.31 | 90,608,707 | 127 |
35 | Austria | 11,233,384 | 0.30 | 9,130,429 | 1,230 |
36 | Ireland | 11,041,636 | 0.30 | 5,196,630 | 2,125 |
37 | Saudi Arabia | 10,720,264 | 0.29 | 33,264,292 | 322 |
38 | Chile | 10,038,880 | 0.27 | 19,658,835 | 511 |
39 | Czech Republic | 9,530,208 | 0.26 | 10,809,716 | 882 |
40 | Ukraine | 9,269,384 | 0.25 | 37,732,836 | 246 |
41 | Thailand | 9,189,444 | 0.25 | 71,702,435 | 128 |
42 | Israel | 7,988,880 | 0.22 | 9,256,314 | 863 |
43 | Tunisia | 7,876,420 | 0.21 | 12,200,431 | 646 |
44 | Romania | 7,755,072 | 0.21 | 19,118,479 | 406 |
45 | Seychelles | 7,473,364 | 0.20 | 127,951 | 58,408 |
46 | Venezuela | 6,706,428 | 0.18 | 28,300,854 | 237 |
47 | Malaysia | 6,699,540 | 0.18 | 35,126,298 | 191 |
48 | Portugal | 6,692,684 | 0.18 | 10,430,738 | 642 |
49 | New Zealand | 6,575,816 | 0.18 | 5,172,836 | 1,271 |
50 | Kenya | 6,182,464 | 0.17 | 55,339,003 | 112 |
51 | Philippines | 6,136,664 | 0.17 | 114,891,199 | 53 |
52 | Hungary | 5,914,408 | 0.16 | 9,686,463 | 611 |
53 | Greece | 5,719,476 | 0.16 | 10,242,908 | 558 |
54 | Pakistan | 5,459,308 | 0.15 | 247,504,495 | 22 |
55 | United Arab Emirates | 5,393,732 | 0.15 | 10,642,081 | 507 |
56 | Mauritius | 4,779,612 | 0.13 | 1,273,588 | 3,753 |
57 | Algeria | 4,763,008 | 0.13 | 46,164,219 | 103 |
58 | Bulgaria | 4,289,996 | 0.12 | 6,795,803 | 631 |
59 | Kazakhstan | 3,273,724 | 0.09 | 20,330,104 | 161 |
60 | Peru | 3,242,752 | 0.09 | 33,845,617 | 96 |
61 | Nigeria | 3,173,176 | 0.09 | 227,882,945 | 14 |
62 | Slovakia | 2,739,728 | 0.07 | 5,518,055 | 497 |
63 | Ecuador | 2,715,524 | 0.07 | 17,980,083 | 151 |
64 | Slovenia | 2,673,076 | 0.07 | 2,118,396 | 1,262 |
65 | Lithuania | 2,637,860 | 0.07 | 2,854,099 | 924 |
66 | Uruguay | 2,445,736 | 0.07 | 3,388,081 | 722 |
67 | Croatia | 2,344,148 | 0.06 | 3,896,023 | 602 |
68 | Costa Rica | 2,331,940 | 0.06 | 5,105,525 | 457 |
69 | Serbia | 2,293,096 | 0.06 | 6,773,201 | 339 |
70 | Ghana | 2,191,828 | 0.06 | 33,787,914 | 65 |
71 | Bangladesh | 2,003,100 | 0.05 | 171,466,990 | 12 |
72 | Kuwait | 1,906,664 | 0.05 | 4,838,782 | 394 |
73 | Sudan | 1,890,932 | 0.05 | 50,042,791 | 38 |
74 | Latvia | 1,842,736 | 0.05 | 1,882,396 | 979 |
75 | Luxembourg | 1,833,868 | 0.05 | 665,098 | 2,757 |
76 | Belarus | 1,789,820 | 0.05 | 9,115,680 | 196 |
77 | Panama | 1,734,792 | 0.05 | 4,458,759 | 389 |
78 | Ivory Coast | 1,712,196 | 0.05 | 31,165,654 | 55 |
79 | Zambia | 1,647,204 | 0.04 | 20,723,965 | 79 |
80 | Dominican Republic | 1,614,232 | 0.04 | 11,331,265 | 142 |
81 | Uganda | 1,433,740 | 0.04 | 48,656,601 | 29 |
82 | Estonia | 1,308,072 | 0.04 | 1,367,196 | 957 |
83 | Georgia | 1,285,184 | 0.03 | 3,807,492 | 338 |
84 | Syria | 1,276,856 | 0.03 | 23,594,623 | 54 |
85 | Angola | 1,270,256 | 0.03 | 36,749,906 | 35 |
86 | Cyprus | 1,267,832 | 0.03 | 1,344,976 | 943 |
87 | Moldova | 1,246,208 | 0.03 | 3,067,070 | 406 |
88 | Bolivia | 1,169,452 | 0.03 | 12,244,159 | 96 |
89 | Paraguay | 1,152,432 | 0.03 | 6,844,146 | 168 |
90 | Tanzania | 1,076,812 | 0.03 | 66,617,606 | 16 |
91 | Oman | 950,996 | 0.03 | 5,049,269 | 188 |
92 | Iceland | 892,320 | 0.02 | 387,558 | 2,302 |
93 | Palestine | 874,272 | 0.02 | 5,409,202 | 162 |
94 | Qatar | 843,604 | 0.02 | 2,979,082 | 283 |
95 | Bosnia and Herzegovina | 788,336 | 0.02 | 3,185,073 | 248 |
96 | Azerbaijan | 767,228 | 0.02 | 10,318,207 | 74 |
Puerto Rico | 761,764 | 0.02 | 3,242,023 | 235 | |
97 | Malta | 690,800 | 0.02 | 532,956 | 1,296 |
98 | North Macedonia | 685,508 | 0.02 | 1,831,802 | 374 |
99 | Armenia | 668,456 | 0.02 | 2,943,393 | 227 |
100 | El Salvador | 663,728 | 0.02 | 6,309,624 | 105 |
101 | Jordan | 645,656 | 0.02 | 11,439,213 | 56 |
102 | Guatemala | 642,748 | 0.02 | 18,124,838 | 35 |
103 | Cameroon | 599,572 | 0.02 | 28,372,687 | 21 |
104 | Madagascar | 578,460 | 0.02 | 31,195,932 | 19 |
105 | Nepal | 574,228 | 0.02 | 29,694,614 | 19 |
106 | Lebanon | 567,096 | 0.02 | 5,773,493 | 98 |
107 | Sri Lanka | 564,140 | 0.02 | 22,971,617 | 25 |
108 | Malawi | 554,816 | 0.02 | 21,104,482 | 26 |
109 | Trinidad and Tobago | 544,532 | 0.01 | 1,502,932 | 362 |
110 | Honduras | 534,528 | 0.01 | 10,644,851 | 50 |
111 | Albania | 484,756 | 0.01 | 2,811,655 | 172 |
112 | Namibia | 465,008 | 0.01 | 2,963,095 | 157 |
113 | Libya | 448,528 | 0.01 | 7,305,659 | 61 |
114 | Bahrain | 445,476 | 0.01 | 1,569,666 | 284 |
115 | Iraq | 445,444 | 0.01 | 45,074,049 | 10 |
116 | Mozambique | 444,464 | 0.01 | 33,635,160 | 13 |
Réunion | 424,604 | 0.01 | 874,883 | 485 | |
117 | Nicaragua | 411,944 | 0.01 | 6,823,613 | 60 |
118 | Cambodia | 406,764 | 0.01 | 17,423,880 | 23 |
119 | Senegal | 404,080 | 0.01 | 18,077,573 | 22 |
120 | Gabon | 393,632 | 0.01 | 2,484,789 | 158 |
121 | Ethiopia | 368,580 | 0.01 | 128,691,692 | 3 |
122 | Togo | 353,728 | 0.01 | 9,304,337 | 38 |
Macau | 337,512 | 0.01 | 713,912 | 473 | |
123 | Burkina Faso | 336,696 | 0.01 | 23,025,776 | 15 |
124 | Uzbekistan | 286,300 | 0.01 | 35,652,307 | 8 |
125 | Rwanda | 280,716 | 0.01 | 13,954,471 | 20 |
126 | Gambia | 272,808 | 0.01 | 2,697,845 | 101 |
127 | Kyrgyzstan | 269,956 | 0.01 | 7,073,516 | 38 |
128 | Cuba | 256,940 | 0.01 | 11,019,931 | 23 |
129 | Myanmar | 238,976 | 0.01 | 54,133,798 | 4 |
Gibraltar | 238,044 | 0.01 | 38,471 | 6,188 | |
130 | Yemen | 233,352 | 0.01 | 39,390,799 | 6 |
131 | Jamaica | 223,032 | 0.01 | 2,839,786 | 79 |
Guam | 219,276 | 0.01 | 166,506 | 1,317 | |
132 | Brunei | 216,168 | 0.01 | 458,949 | 471 |
133 | Montenegro | 209,200 | 0.01 | 633,552 | 330 |
Curaçao | 200,004 | 0.01 | 185,427 | 1,079 | |
134 | Antigua and Barbuda | 180,312 | 0.00 | 93,316 | 1,932 |
135 | Mongolia | 180,240 | 0.00 | 3,431,932 | 53 |
136 | Afghanistan | 176,892 | 0.00 | 41,454,761 | 4 |
137 | Democratic Republic of the Congo | 175,568 | 0.00 | 105,789,731 | 2 |
138 | Barbados | 168,584 | 0.00 | 282,336 | 597 |
British Virgin Islands | 165,688 | 0.00 | 38,985 | 4,250 | |
139 | Belize | 165,552 | 0.00 | 411,106 | 403 |
140 | Botswana | 161,852 | 0.00 | 2,480,244 | 65 |
New Caledonia | 161,352 | 0.00 | 289,870 | 557 | |
141 | Haiti | 154,780 | 0.00 | 11,637,398 | 13 |
142 | Benin | 147,576 | 0.00 | 14,111,034 | 10 |
Jersey | 144,216 | 0.00 | 103,674 | 1,391 | |
143 | Fiji | 142,700 | 0.00 | 924,145 | 154 |
144 | Republic of the Congo | 141,488 | 0.00 | 6,182,885 | 23 |
145 | Bahamas | 138,648 | 0.00 | 399,440 | 347 |
Martinique | 134,568 | 0.00 | 346,002 | 389 | |
Europe | 131,064 | 0.00 | [a] | ||
Isle of Man | 129,048 | 0.00 | 84,165 | 1,533 | |
Guadeloupe | 124,612 | 0.00 | 376,517 | 331 | |
146 | Lesotho | 120,756 | 0.00 | 2,311,472 | 52 |
United States Virgin Islands | 118,460 | 0.00 | 85,701 | 1,382 | |
Aruba | 111,820 | 0.00 | 107,939 | 1,036 | |
Bermuda | 111,684 | 0.00 | 64,698 | 1,726 | |
147 | Liechtenstein | 105,996 | 0.00 | 39,598 | 2,677 |
148 | Zimbabwe | 101,988 | 0.00 | 16,340,822 | 6 |
149 | Maldives | 93,764 | 0.00 | 525,994 | 178 |
150 | Mali | 92,564 | 0.00 | 23,769,127 | 4 |
151 | Laos | 87,072 | 0.00 | 7,664,993 | 11 |
152 | Sierra Leone | 82,844 | 0.00 | 8,460,512 | 10 |
153 | Tajikistan | 82,712 | 0.00 | 10,389,799 | 8 |
154 | Suriname | 81,608 | 0.00 | 628,886 | 130 |
French Polynesia | 75,444 | 0.00 | 281,118 | 268 | |
155 | Papua New Guinea | 72,436 | 0.00 | 10,389,635 | 7 |
156 | Guyana | 68,808 | 0.00 | 826,353 | 83 |
157 | Monaco | 63,660 | 0.00 | 38,956 | 1,634 |
158 | Andorra | 57,256 | 0.00 | 80,856 | 708 |
159 | Eswatini | 54,176 | 0.00 | 1,230,506 | 44 |
160 | Somalia | 50,828 | 0.00 | 18,358,615 | 3 |
161 | Mauritania | 46,284 | 0.00 | 5,022,441 | 9 |
162 | Djibouti | 46,052 | 0.00 | 1,152,944 | 40 |
163 | Niger | 45,008 | 0.00 | 26,159,867 | 2 |
Faroe Islands | 45,000 | 0.00 | 54,714 | 822 | |
Cayman Islands | 44,196 | 0.00 | 73,038 | 605 | |
164 | Bhutan | 43,604 | 0.00 | 786,385 | 55 |
Guernsey | 40,608 | 0.00 | 64,017 | 634 | |
165 | Liberia | 39,092 | 0.00 | 5,493,031 | 7 |
166 | San Marino | 38,832 | 0.00 | 33,733 | 1,151 |
167 | Cape Verde | 38,052 | 0.00 | 522,331 | 73 |
168 | Guinea | 38,048 | 0.00 | 14,405,468 | 3 |
169 | Burundi | 36,812 | 0.00 | 13,689,450 | 3 |
Sint Maarten | 34,252 | 0.00 | 42,749 | 801 | |
Greenland | 34,204 | 0.00 | 55,922 | 612 | |
170 | South Sudan | 26,252 | 0.00 | 11,483,374 | 2 |
171 | Chad | 25,776 | 0.00 | 19,319,064 | 1 |
Caribbean Netherlands | 24,784 | 0.00 | 29,898 | 829 | |
172 | Timor-Leste | 23,436 | 0.00 | 1,384,286 | 17 |
French Guiana | 22,504 | 0.00 | 303,402 | 74 | |
173 | Turkmenistan | 21,980 | 0.00 | 7,364,438 | 3 |
174 | Saint Lucia | 20,656 | 0.00 | 179,285 | 115 |
175 | Samoa | 19,904 | 0.00 | 216,663 | 92 |
176 | Saint Kitts and Nevis | 19,648 | 0.00 | 46,758 | 420 |
177 | Equatorial Guinea | 17,880 | 0.00 | 1,847,549 | 10 |
178 | Vanuatu | 16,304 | 0.00 | 320,409 | 51 |
Northern Mariana Islands | 15,336 | 0.00 | 45,143 | 340 | |
179 | Dominica | 14,536 | 0.00 | 66,510 | 219 |
180 | Solomon Islands | 14,288 | 0.00 | 800,005 | 18 |
181 | Tonga | 11,476 | 0.00 | 104,597 | 110 |
182 | Grenada | 10,952 | 0.00 | 117,081 | 94 |
183 | Vatican City | 10,736 | 0.00 | 496 | 21,645 |
Turks and Caicos Islands | 10,468 | 0.00 | 46,198 | 227 | |
184 | Nauru | 10,212 | 0.00 | 11,875 | 860 |
185 | Saint Vincent and the Grenadines | 10,196 | 0.00 | 101,323 | 101 |
Anguilla | 9,692 | 0.00 | 14,410 | 673 | |
186 | São Tomé and Príncipe | 9,208 | 0.00 | 230,871 | 40 |
187 | Cook Islands | 8,696 | 0.00 | 14,222 | 611 |
188 | Federated States of Micronesia | 8,684 | 0.00 | 112,630 | 77 |
189 | Tuvalu | 8,188 | 0.00 | 9,816 | 834 |
190 | Comoros | 7,152 | 0.00 | 850,387 | 8 |
Falkland Islands | 7,124 | 0.00 | 3,477 | 2,049 | |
191 | Palau | 6,128 | 0.00 | 17,727 | 346 |
192 | Guinea-Bissau | 5,620 | 0.00 | 2,153,339 | 3 |
193 | Central African Republic | 5,356 | 0.00 | 5,152,421 | 1 |
American Samoa | 5,112 | 0.00 | 47,521 | 108 | |
Saint Pierre and Miquelon | 4,600 | 0.00 | 5,681 | 810 | |
194 | Marshall Islands | 4,588 | 0.00 | 38,827 | 118 |
195 | Eritrea | 4,092 | 0.00 | 3,470,390 | 1 |
Åland Islands | 4,092 | 0.00 | 26,711 | 153 | |
196 | Kiribati | 4,076 | 0.00 | 132,530 | 31 |
Wallis and Futuna | 3,572 | 0.00 | 11,370 | 314 | |
Saint Martin | 3,556 | 0.00 | 27,515 | 129 | |
British Indian Ocean Territory | 3,064 | 0.00 | 4,000 | 766 | |
Tokelau | 3,052 | 0.00 | 2,397 | 1,273 | |
197 | Niue | 2,040 | 0.00 | 1,817 | 1,123 |
Montserrat | 1,272 | 0.00 | 4,420 | 288 | |
198 | North Korea | 1,020 | 0.00 | 26,418,204 | 0 |
Mayotte | 1,020 | 0.00 | 316,015 | 3 | |
Norfolk Island | 760 | 0.00 | 1,828 | 416 | |
Saint Barthélemy | 756 | 0.00 | 11,085 | 68 | |
199 | Kosovo | 0 | 1,700,031 | ||
199 | Western Sahara | 0 | 579,729 | ||
Saint Helena, Ascension and Tristan da Cunha | 0 | 5,289 | |||
Svalbard and Jan Mayen | 0 | 2,550 | |||
Christmas Island | 0 | 1,500 | |||
Cocos (Keeling) Islands | 0 | 628 | |||
French Southern and Antarctic Lands | 0 | 140 | |||
Pitcairn Islands | 0 | 46 | |||
South Georgia and the South Sandwich Islands | 0 | 30 | |||
Bouvet Island | 0 | 0 | |||
Heard Island and McDonald Islands | 0 | 0 | |||
United States Minor Outlying Islands | 0 | 0 |
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Internet Protocol version 4 (IPv4) is the first version of the Internet Protocol (IP) as a standalone specification. It is one of the core protocols of standards-based internetworking methods in the Internet and other packet-switched networks. IPv4 was the first version deployed for production on SATNET in 1982 and on the ARPANET in January 1983. It is still used to route most Internet traffic today, even with the ongoing deployment of Internet Protocol version 6 (IPv6), its successor.
Classless Inter-Domain Routing is a method for allocating IP addresses for IP routing. The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous classful network addressing architecture on the Internet. Its goal was to slow the growth of routing tables on routers across the Internet, and to help slow the rapid exhaustion of IPv4 addresses.
A multicast address is a logical identifier for a group of hosts in a computer network that are available to process datagrams or frames intended to be multicast for a designated network service. Multicast addressing can be used in the link layer, such as Ethernet multicast, and at the internet layer for Internet Protocol Version 4 (IPv4) or Version 6 (IPv6) multicast.
APNIC is the regional Internet address registry (RIR) for the Asia–Pacific region. It is one of the world's five RIRs and is part of the Number Resource Organization (NRO).
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.
Bogon filtering is the practice of blocking packets known as bogons, which are ones sent to a computer network claiming to originate from invalid or bogus IP addresses, known as bogon addresses.
A Martian packet is an IP packet seen on the public Internet that contains a source or destination address that is reserved for special use by the Internet Assigned Numbers Authority (IANA) as defined in RFC 1812, Appendix B Glossary. On the public Internet, such a packet either has a spoofed source address, and it cannot actually originate as claimed, or the packet cannot be delivered. The requirement to filter these packets is found in RFC 1812, Section 5.3.7.
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anoNet is a decentralized friend-to-friend network built using VPNs and software BGP routers. anoNet works by making it difficult to learn the identities of others on the network allowing them to anonymously host IPv4 and IPv6 services. One of the primary goals of anoNet is to protect its participants' rights of speech and expression.
RIPE NCC is the regional Internet registry (RIR) for Europe, the Middle East, and parts of Central Asia. Its headquarters are in Amsterdam, Netherlands, with a branch office in Dubai, UAE.
In the Internet addressing architecture, the Internet Engineering Task Force (IETF) and the Internet Assigned Numbers Authority (IANA) have reserved various Internet Protocol (IP) addresses for special purposes.
IPv4 address exhaustion is the depletion of the pool of unallocated IPv4 addresses. Because the original Internet architecture had fewer than 4.3 billion addresses available, depletion has been anticipated since the late 1980s when the Internet started experiencing dramatic growth. This depletion is one of the reasons for the development and deployment of its successor protocol, IPv6. IPv4 and IPv6 coexist on the Internet.
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