Our Region
ARIN’s Region
ARIN’s geographical service area includes all of the countries in the list below. The links on the right provide a list of the countries within each Regional Internet Registry’s region, and a map is available below showing all regions.
Complete List of Countries in the ARIN Region
by sector
| Country | A 2 | A 3 |
|---|---|---|
| CANADA | CA | CAN |
| Country | A 2 | A 3 |
|---|---|---|
| ANGUILLA | AI | AIA |
| ANTIGUA AND BARBUDA | AG | ATG |
| BAHAMAS | BS | BHS |
| BARBADOS | BB | BRB |
| BERMUDA | BM | BMU |
| CAYMAN ISLANDS | KY | CYM |
| DOMINICA | DM | DMA |
| GRENADA | GD | GRD |
| GUADELOUPE | GP | GLP |
| JAMAICA | JM | JAM |
| MARTINIQUE | MQ | MTQ |
| MONTSERRAT | MS | MSR |
| SAINT BARTHELEMY | BL | BLM |
| SAINT KITTS AND NEVIS | KN | KNA |
| SAINT LUCIA | LC | LCA |
| ST. PIERRE AND MIQUELON | PM | SPM |
| SAINT VINCENT AND THE GRENADINES | VC | VCT |
| ST. MARTIN | MF | MAF |
| TURKS AND CAICOS ISLANDS | TC | TCA |
| VIRGIN ISLANDS (BRITISH) | VG | VGB |
| Country | A 2 | A 3 |
|---|---|---|
| UNITED STATES | US | USA |
| PUERTO RICO | PR | PRI |
| VIRGIN ISLANDS (U.S.) | VI | VIR |
| UNITED STATES MINOR OUTLYING ISLANDS | UM | UMI |
| Country | A 2 | A 3 |
|---|---|---|
| ANTARCTICA | AQ | ATA |
| BOUVET ISLAND | BV | BVT |
| HEARD AND MCDONALD ISLANDS | HM | HMD |
| ST. HELENA | SH | SHN |
Regional Internet Registry Regions
Regional Internet Registries (RIRs) are nonprofit corporations that administer and register Internet Protocol (IP) address space and Autonomous System (AS) numbers within a defined region. RIRs also work together on joint projects.
- AFRINIC: Africa, portions of the Indian Ocean
- APNIC: Portions of Asia, portions of Oceania
- ARIN: Canada, many Caribbean and North Atlantic islands, and the United States
- LACNIC: Latin America, portions of the Caribbean
- RIPE NCC: Europe, the Middle East, Central Asia