As far as I know, there is no DBA report that will yield the info you need. Nevertheless, there is a way to gt the info by using a simple report run on BARCUST using Crystal Report.
Write a report that lists customer addresses and also the field BKAR_CUST_YEAR. The last field lists the bill to association of the customer code that is listed as a shipto. It helps if the shipto codes resemble the make up of the billto code (i.e. cust_A = billto, CUST_AA = shipto, CUST_AB = shipto) That way they are listed consecutively in order. See sample
 
BKAR_CUSTCODE      BKAR_CUSTNAME                      BKAR_CITY      BKAR_CUST_YEAR
ABSBOO                      ABSO BOOKSTORES                      SAN DIEGO      
ABSBOO-001      MIRAMAR COLLEGE BOOKSTORE      SAN DIEGO      ABSBOO
ABSBOO-333      ECC COLLEGE BOOKSTORE      SAN DIEGO      ABSBOO
ABSBOO-555      CITY COLLEGE BOOKSTORE      SAN DIEGO      ABSBOO
ABSBOO-999      MESA COLLEGE BOOKSTORE      SAN DIEGO      ABSBOO