Itemu elithi "ABA transit number" lisho amadijithi ayisishiyagalolunye ahlukile asetshenziswa e-United States ukukhomba isikhungo sezezimali kumsebenzi. I-ABA imele i-American Bankers Association, inhlangano eyathuthukisa uhlelo lwezinombolo ngo-1910. Inombolo yezokuthutha ye-ABA yaziwa nangokuthi inombolo yomzila noma inombolo yokuthutha umzila (RTN). Isetshenziswa i-Federal Reserve Banks ukucubungula ukudluliswa kwezimali kwe-Fedwire, i-ACH (Automated Clearing House) amadiphozithi aqondile, izinkokhelo zebhili, nokunye ukudluliswa kwezimali okuzenzakalelayo phakathi kwezikhungo zezezimali e-US.