Two Letter International Country Codes
Three Letter International Country Codes
| State/Possession | Abbreviation | |
| ALABAMA | AL | |
| ALASKA | AK | |
| AMERICAN SAMOA | AS | |
| ARIZONA | AZ | |
| ARKANSAS | AR | |
| CALIFORNIA | CA | |
| COLORADO | CO | |
| CONNECTICUT | CT | |
| DELAWARE | DE | |
| DISTRICT OF COLUMBIA | DC | |
| FEDERATED STATES OF MICRONESIA | FM | |
| FLORIDA | FL | |
| GEORGIA | GA | |
| GUAM | GU | |
| HAWAII | HI | |
| IDAHO | ID | |
| ILLINOIS | IL | |
| INDIANA | IN | |
| IOWA | IA | |
| KANSAS | KS | |
| KENTUCKY | KY | |
| LOUISIANA | LA | |
| MAINE | ME | |
| MARSHALL ISLANDS | MH | |
| MARYLAND | MD | |
| MASSACHUSETTS | MA | |
| MICHIGAN | MI | |
| MINNESOTA | MN | |
| MISSISSIPPI | MS | |
| MISSOURI | MO | |
| MONTANA | MT | |
| NEBRASKA | NE | |
| NEVADA | NV | |
| NEW HAMPSHIRE | NH | |
| NEW JERSEY | NJ | |
| NEW MEXICO | NM | |
| NEW YORK | NY | |
| NORTH CAROLINA | NC | |
| NORTH DAKOTA | ND | |
| NORTHERN MARIANA ISLANDS | MP | |
| OHIO | OH | |
| OKLAHOMA | OK | |
| OREGON | OR | |
| PALAU | PW | |
| PENNSYLVANIA | PA | |
| PUERTO RICO | PR | |
| RHODE ISLAND | RI | |
| SOUTH CAROLINA | SC | |
| SOUTH DAKOTA | SD | |
| TENNESSEE | TN | |
| TEXAS | TX | |
| UTAH | UT | |
| VERMONT | VT | |
| VIRGIN ISLANDS | VI | |
| VIRGINIA | VA | |
| WASHINGTON | WA | |
| WEST VIRGINIA | WV | |
| WISCONSIN | WI | |
| WYOMING | WY | |
