In order to make international payments to Guam you have to know the bank´s SWIFT / BIC code.
The SWIFT code consists of 8 to 11 characters (letters and digits) and for Guam the SWIFT code has the following format:
| SWIFT Code | Bank | City |
| ABCMGUG1 | ALLIED BANKING CORPORATION | TAMUNING |
| ANZBGUGG | CITIZENS SECURITY BANK (GUAM), INC | AGANA |
| BNAUGUG1 | BANK OF NAURU | AGANA |
| CITIGUG10GU | CITIBANK, N.A. | AGANA |
| CITIGUG1XXX | CITIBANK NA | Tamuning |
| CITIGUGX | CITIBANK N.A. GUAM | AGANA |
| GMBKGUGU | BANK OF GUAM | AGANA |