Our Region
ARIN’s Region
ARIN’s service area includes all of the countries or geographical areas in the list below. The links on the right provide a list of the countries or geographical areas within each Regional Internet Registry’s region, and a map is available below showing all regions.
Complete List of Countries or Geographical Areas in the ARIN Region
| Country / Geographical Area | A 2 | A 3 | 
|---|---|---|
| Anguilla | AI | AIA | 
| Antarctica | AQ | ATA | 
| Antigua and Barbuda | AG | ATG | 
| Bahamas | BS | BHS | 
| Barbados | BB | BRB | 
| Bermuda | BM | BMU | 
| Bouvet Island | BV | BVT | 
| Canada | CA | CAN | 
| Cayman Islands | KY | CYM | 
| Dominica | DM | DMA | 
| Grenada | GD | GRD | 
| Guadeloupe | GP | GLP | 
| Heard and McDonald Islands | HM | HMD | 
| Jamaica | JM | JAM | 
| Martinique | MQ | MTQ | 
| Montserrat | MS | MSR | 
| Puerto Rico | PR | PRI | 
| Saint Barthelemy | BL | BLM | 
| Saint Helena | SH | SHN | 
| Saint Kitts and Nevis | KN | KNA | 
| Saint Lucia | LC | LCA | 
| Saint Martin | MF | MAF | 
| Saint Pierre and Miquelon | PM | SPM | 
| Saint Vincent and The Grenadines | VC | VCT | 
| Turks and Caicos Islands | TC | TCA | 
| United States | US | USA | 
| United States Minor Outlying Islands | UM | UMI | 
| Virgin Islands (British) | VG | VGB | 
| Virgin Islands (U.S.) | VI | VIR | 
Regional Internet Registry Regions
Regional Internet Registries (RIRs) are nonprofit corporations that administer and issue 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