Country IP Blocks provides network and IP data on the following 244 countries and organizations:

AFGHANISTAN: 14 networks, 65,792 subnets
AFRICAN REGIONAL INTELLECTUAL PROPERTY ORGANIZATION: 95 networks, 451,584 subnets
ALAND ISLANDS : 1 networks, 4,096 subnets
ALBANIA: 13 networks, 114,944 subnets
ALGERIA: 24 networks, 265,728 subnets
AMERICAN SAMOA: 1 networks, 4,096 subnets
ANDORRA: 3 networks, 24,576 subnets
ANGOLA: 16 networks, 47,360 subnets
ANGUILLA: 2 networks, 4,096 subnets
ANTARCTICA: 0 networks, 0 subnets
ANTIGUA AND BARBUDA: 5 networks, 38,912 subnets
ARGENTINA: 354 networks, 5,745,152 subnets
ARMENIA: 24 networks, 111,648 subnets
ARUBA: 2 networks, 18,432 subnets
AUSTRALIA: 5893 networks, 34,881,280 subnets
AUSTRIA: 768 networks, 6,867,936 subnets
AZERBAIJAN: 22 networks, 149,504 subnets
BAHAMAS: 7 networks, 67,584 subnets
BAHRAIN: 33 networks, 211,456 subnets
BANGLADESH: 117 networks, 425,472 subnets
BARBADOS: 13 networks, 103,168 subnets
BELARUS: 25 networks, 322,560 subnets
BELGIUM: 360 networks, 5,442,432 subnets
BELIZE: 8 networks, 49,664 subnets
BENIN: 3 networks, 6,144 subnets
BERMUDA: 24 networks, 80,384 subnets
BHUTAN: 5 networks, 22,528 subnets
BOGONS: 29 networks, 1,276,379,392 subnets
BOLIVIA: 33 networks, 380,160 subnets
BOSNIA AND HERZEGOVINA: 42 networks, 344,064 subnets
BOTSWANA: 7 networks, 72,704 subnets
BOUVET ISLAND: 0 networks, 0 subnets
BRAZIL: 265 networks, 25,560,576 subnets
BRITISH INDIAN OCEAN TERRITORY: 2 networks, 3,072 subnets
BRUNEI DARUSSALAM: 13 networks, 190,976 subnets
BULGARIA: 318 networks, 2,732,032 subnets
BURKINA FASO: 7 networks, 18,176 subnets
BURUNDI: 2 networks, 2,304 subnets
CAMBODIA: 33 networks, 111,360 subnets
CAMEROON: 11 networks, 53,760 subnets
CANADA: 5163 networks, 72,334,592 subnets
CAPE VERDE: 1 networks, 4,096 subnets
CAYMAN ISLANDS: 3 networks, 13,312 subnets
CENTRAL AFRICAN REPUBLIC: 2 networks, 3,072 subnets
CHAD: 0 networks, 0 subnets
CHILE: 376 networks, 4,260,096 subnets
CHINA: 1433 networks, 152,255,232 subnets
CHRISTMAS ISLAND: 0 networks, 0 subnets
COCOS (KEELING) ISLANDS: 0 networks, 0 subnets
COLOMBIA: 211 networks, 3,779,840 subnets
COMOROS: 0 networks, 0 subnets
CONGO - BRAZZAVILLE: 1 networks, 1,024 subnets
CONGO, THE DEMOCRATIC REPUBLIC OF THE: 4 networks, 3,584 subnets
COOK ISLANDS: 1 networks, 8,192 subnets
COSTA RICA: 23 networks, 1,331,968 subnets
COTE D'IVOIRE: 11 networks, 83,200 subnets
CROATIA: 58 networks, 1,419,360 subnets
CUBA: 15 networks, 101,376 subnets
CYPRUS: 73 networks, 519,200 subnets
CZECH REPUBLIC: 548 networks, 5,246,848 subnets
DENMARK: 444 networks, 8,514,160 subnets
DJIBOUTI: 1 networks, 4,096 subnets
DOMINICA: 0 networks, 0 subnets
DOMINICAN REPUBLIC: 39 networks, 302,848 subnets
ECUADOR: 160 networks, 563,456 subnets
EGYPT: 80 networks, 2,234,880 subnets
EL SALVADOR: 22 networks, 402,432 subnets
EQUATORIAL GUINEA: 1 networks, 2,048 subnets
ERITREA: 1 networks, 4,096 subnets
ESTONIA: 73 networks, 1,004,288 subnets
ETHIOPIA: 1 networks, 16,384 subnets
EUROPEAN UNION: 4751 networks, 102,972,768 subnets
FALKLAND ISLANDS (MALVINAS) : 0 networks, 0 subnets
FAROE ISLANDS: 7 networks, 33,792 subnets
FIJI: 15 networks, 101,632 subnets
FINLAND: 608 networks, 8,686,208 subnets
FRANCE: 1662 networks, 67,971,168 subnets
FRENCH GUIANA: 1 networks, 2,048 subnets
FRENCH POLYNESIA: 7 networks, 39,424 subnets
FRENCH SOUTHERN TERRITORIES: 0 networks, 0 subnets
GABON: 8 networks, 33,280 subnets
GAMBIA: 3 networks, 11,264 subnets
GEORGIA: 35 networks, 284,672 subnets
GERMANY: 2161 networks, 77,727,952 subnets
GHANA: 27 networks, 130,560 subnets
GIBRALTAR: 8 networks, 51,200 subnets
GREECE: 218 networks, 3,227,392 subnets
GREENLAND: 2 networks, 16,384 subnets
GRENADA: 1 networks, 256 subnets
GUADELOUPE: 3 networks, 4,096 subnets
GUAM: 12 networks, 73,984 subnets
GUATEMALA: 33 networks, 270,336 subnets
GUERNSEY: 2 networks, 4,096 subnets
GUINEA: 0 networks, 0 subnets
GUINEA-BISSAU: 1 networks, 1,024 subnets
GUYANA: 1 networks, 16,384 subnets
HAITI: 7 networks, 40,960 subnets
HEARD AND MC DONALD ISLANDS : 0 networks, 0 subnets
HOLY SEE: 1 networks, 8,192 subnets
HONDURAS: 14 networks, 63,744 subnets
HONG KONG: 628 networks, 7,483,136 subnets
HUNGARY: 225 networks, 3,427,456 subnets
ICELAND: 40 networks, 542,976 subnets
INDIA: 519 networks, 14,718,976 subnets
INDONESIA: 405 networks, 6,275,584 subnets
IRAN, ISLAMIC REPUBLIC OF: 85 networks, 1,499,648 subnets
IRAQ: 6 networks, 32,768 subnets
IRELAND: 199 networks, 4,020,384 subnets
ISLE OF MAN: 4 networks, 14,336 subnets
ISRAEL: 196 networks, 3,898,304 subnets
ITALY: 914 networks, 27,326,528 subnets
JAMAICA: 22 networks, 56,320 subnets
JAPAN: 1923 networks, 144,340,224 subnets
JERSEY: 1 networks, 2,048 subnets
JORDAN: 41 networks, 237,312 subnets
KAZAKHSTAN: 67 networks, 603,904 subnets
KENYA: 45 networks, 246,784 subnets
KIRIBATI: 2 networks, 3,072 subnets
KOREA, DEMOCRATIC PEOPLE'S REPUBLIC OF: 0 networks, 0 subnets
KOREA, REPUBLIC OF: 599 networks, 62,120,960 subnets
KOSOVO: 83 networks, 903,680 subnets
KUWAIT: 47 networks, 536,064 subnets
KYRGYZSTAN: 17 networks, 109,824 subnets
LAO PEOPLE'S DEMOCRATIC REPUBLIC: 7 networks, 22,784 subnets
LATVIA: 179 networks, 1,276,352 subnets
LEBANON: 31 networks, 209,408 subnets
LESOTHO: 4 networks, 10,496 subnets
LIBERIA: 0 networks, 0 subnets
LIBYAN ARAB JAMAHIRIYA: 4 networks, 294,912 subnets
LIECHTENSTEIN: 15 networks, 53,280 subnets
LITHUANIA: 112 networks, 1,980,288 subnets
LUXEMBOURG: 64 networks, 374,528 subnets
MACAO: 18 networks, 146,688 subnets
MACEDONIA, THE FORMER YUGOSLAV REPUBLIC OF: 29 networks, 451,584 subnets
MADAGASCAR: 3 networks, 20,480 subnets
MALAWI: 5 networks, 8,704 subnets
MALAYSIA: 238 networks, 3,563,008 subnets
MALDIVES: 9 networks, 29,184 subnets
MALI: 6 networks, 24,576 subnets
MALTA: 45 networks, 394,240 subnets
MARSHALL ISLANDS: 1 networks, 2,048 subnets
MARTINIQUE: 0 networks, 0 subnets
MAURITANIA: 1 networks, 8,192 subnets
MAURITIUS: 23 networks, 203,520 subnets
MAYOTTE: 0 networks, 0 subnets
MEXICO: 158 networks, 21,504,000 subnets
MICRONESIA, FEDERATED STATES OF: 1 networks, 2,048 subnets
MOLDOVA, REPUBLIC OF: 31 networks, 191,488 subnets
MONACO: 12 networks, 64,832 subnets
MONGOLIA: 24 networks, 102,912 subnets
MONTENEGRO: 4 networks, 24,576 subnets
MONTSERRAT: 2 networks, 1,280 subnets
MOROCCO: 13 networks, 618,752 subnets
MOZAMBIQUE: 12 networks, 38,912 subnets
MYANMAR: 2 networks, 12,288 subnets
NAMIBIA: 10 networks, 39,936 subnets
NAURU: 1 networks, 8,192 subnets
NEPAL: 23 networks, 96,768 subnets
NETHERLANDS: 1280 networks, 20,027,432 subnets
NETHERLANDS ANTILLES: 28 networks, 204,800 subnets
NEW CALEDONIA: 10 networks, 43,008 subnets
NEW ZEALAND: 1179 networks, 5,537,024 subnets
NICARAGUA: 16 networks, 124,928 subnets
NIGER: 1 networks, 8,192 subnets
NIGERIA: 54 networks, 302,848 subnets
NIUE: 1 networks, 1,024 subnets
NORFOLK ISLAND: 3 networks, 1,536 subnets
NORTHERN MARIANA ISLANDS: 3 networks, 12,288 subnets
NORWAY: 375 networks, 7,075,360 subnets
OMAN: 5 networks, 163,840 subnets
PAKISTAN: 103 networks, 1,277,696 subnets
PALAU: 1 networks, 4,096 subnets
PALESTINIAN TERRITORY, OCCUPIED: 22 networks, 241,664 subnets
PANAMA: 50 networks, 907,264 subnets
PAPUA NEW GUINEA: 12 networks, 38,656 subnets
PARAGUAY: 16 networks, 90,112 subnets
PERU: 74 networks, 1,253,120 subnets
PHILIPPINES: 243 networks, 2,800,896 subnets
PITCAIRN: 0 networks, 0 subnets
POLAND: 1377 networks, 12,450,664 subnets
PORTUGAL: 131 networks, 3,669,856 subnets
PUERTO RICO: 59 networks, 601,600 subnets
QATAR: 8 networks, 372,736 subnets
REUNION: 1 networks, 32,768 subnets
ROMANIA: 655 networks, 6,905,600 subnets
RUSSIAN FEDERATION: 2444 networks, 18,495,368 subnets
RWANDA: 5 networks, 79,872 subnets
SAINT HELENA : 0 networks, 0 subnets
SAINT KITTS AND NEVIS: 4 networks, 4,096 subnets
SAINT LUCIA: 1 networks, 256 subnets
SAINT PIERRE AND MIQUELON: 0 networks, 0 subnets
SAINT VINCENT AND THE GRENADINES : 1 networks, 2,048 subnets
SAMOA: 5 networks, 12,544 subnets
SAN MARINO: 4 networks, 22,528 subnets
SAO TOME AND PRINCIPE : 0 networks, 0 subnets
SAUDI ARABIA: 147 networks, 1,929,984 subnets
SENEGAL: 13 networks, 76,032 subnets
SERBIA: 13 networks, 59,648 subnets
SEYCHELLES: 7 networks, 15,360 subnets
SIERRA LEONE: 5 networks, 18,432 subnets
SINGAPORE: 387 networks, 4,238,336 subnets
SLOVAKIA: 152 networks, 1,406,208 subnets
SLOVENIA: 179 networks, 1,203,712 subnets
SOLOMON ISLANDS: 2 networks, 8,704 subnets
SOMALIA: 0 networks, 0 subnets
SOUTH AFRICA: 786 networks, 12,859,904 subnets
SOUTH GEORGIA AND THE SOUTH SANDWICH ISLANDS : 0 networks, 0 subnets
SPAIN: 489 networks, 20,747,168 subnets
SRI LANKA: 27 networks, 294,912 subnets
ST. PIERRE AND MIQUELON: 0 networks, 0 subnets
SUDAN: 8 networks, 67,584 subnets
SURINAME: 5 networks, 19,456 subnets
SWAZILAND: 6 networks, 21,248 subnets
SWEDEN: 790 networks, 16,991,648 subnets
SWITZERLAND: 1190 networks, 7,496,384 subnets
SYRIAN ARAB REPUBLIC: 9 networks, 128,000 subnets
TAIWAN, PROVINCE OF CHINA: 401 networks, 23,287,808 subnets
TAJIKISTAN: 5 networks, 28,672 subnets
TANZANIA, UNITED REPUBLIC OF: 26 networks, 83,456 subnets
THAILAND: 328 networks, 4,082,944 subnets
TIMOR-LESTE: 0 networks, 0 subnets
TOGO: 2 networks, 12,288 subnets
TOKELAU: 0 networks, 0 subnets
TONGA: 3 networks, 4,352 subnets
TRINIDAD AND TOBAGO: 26 networks, 242,432 subnets
TUNISIA: 5 networks, 631,040 subnets
TURKEY: 258 networks, 8,453,824 subnets
TURKMENISTAN: 1 networks, 4,096 subnets
TURKS AND CAICOS ISLANDS: 1 networks, 4,096 subnets
TUVALU: 1 networks, 8,192 subnets
UGANDA: 11 networks, 114,944 subnets
UKRAINE: 1453 networks, 3,863,104 subnets
UNITED ARAB EMIRATES: 18 networks, 1,490,944 subnets
UNITED KINGDOM: 3391 networks, 83,601,624 subnets
UNITED STATES: 33509 networks, 1,393,514,752 subnets
UNITED STATES MINOR OUTLYING ISLANDS: 0 networks, 0 subnets
URUGUAY: 44 networks, 638,208 subnets
UZBEKISTAN: 17 networks, 153,856 subnets
VANUATU: 3 networks, 6,400 subnets
VENEZUELA: 111 networks, 3,576,320 subnets
VIET NAM: 79 networks, 3,862,016 subnets
VIRGIN ISLANDS, BRITISH: 1 networks, 1,024 subnets
VIRGIN ISLANDS, U.S.: 6 networks, 82,944 subnets
WALLIS AND FUTUNA ISLANDS: 1 networks, 2,048 subnets
WESTERN SAHARA: 0 networks, 0 subnets
YEMEN: 3 networks, 24,576 subnets
ZAMBIA: 8 networks, 15,616 subnets
ZIMBABWE: 9 networks, 33,280 subnets