Routing Number is a nine-digit numeric code printed on the bottom of checks that is used to facilitate the electronic routing of funds (ACH transfer) from one bank account to another.
Answer Wiki. Gus Fring might have been based on Eugenio Berrios, a biochemist who worked for General Pinochet and was a prominent figure in DINA, the Chilean intelligence agency during the dictator's rule. During his rule, Pinochet supplemented his personal income by producing cocaine and selling it on to Europe and the United States.
You have a really good point here. In fact, Fring it's not a chilean last-name. Gustavo it is a common name, though. I think Gus might have been involved in Pinochet's dictatorship as a DINA or CNI agent, that's why he doesn't care anyone's life (even children), unless he can get a benefit of that person being alive.