It is one of the four largest financial banking companies in the United States. It offers clients, companies, and corporations an important range of commercial, corporate, consumer, and investment banking services.


The history of this great bank dates back to 1812 with the creation of The Bank of the City of New York. It was founded due to the need for merchants to have a savings system. Later, in 1865, it changed its name to The National City Bank of New York. Little by little, it became the most important bank in the United States.

In 1914, it opened its first branch abroad, specifically, in Buenos Aires, Argentina. Four years later, it acquired the International Banking Corporation. It was already an institution known worldwide and was a pioneer in offering various types of services.

It changed its name to The First National City Bank of New York in 1955 and seven years later, to First National City Bank. It began to introduce credit cards in the country, and it was when it presented its MasterCard in 1967. That same year, it was established as Citicorp (First National City Corporation), and that name was officially used as of 1974. Thus, it began to be called Citibank

After 1993, a group called Travelers Inc was created through several mergers. That group joined Citicorp, forming Citigroup Inc, a powerful banking company in the United States and the world.

Routing Number

A routing number is usually used during a bank transfer to identify the institution. The routing number of this bank in several states is:

  • California (North): 321171184.
  • Delaware: 31100209.
  • Illinois: 271070801.
  • Nevada, California (South): 322271724.
  • New York, South Dakota: 21000089.
  • Texas: 113193532.
  • Washington – DC, Virginia: 254070116.
  • Connecticut: 221172610.
  • Florida: 266086554.
  • Maryland: 52002166.
  • New Jersey: 21272655.

Number of Employees

The last employee count was carried out in 2018. Citigroup has 204,000 employees.


The rating determines the ability and financial risks of a bank to deal with debt.

Citigroup has a rating of:

  • S&P = A+.
  • Moody’s = A1.
  • Fitch = A+.

A+ (S&P Global) = It means that the economic situation could affect the financing.

A1 (Moody’s) = It has medium-high quality, low credit risk, but with elements that suggest a susceptibility to long-term deterioration.

A+ (Fitch) = It has great solvency capacity and low risk of default.


The headquarters of Citigroup is located in New York, USA.


To access the bank’s website:


It provides a large number of specialized services such as long-term investments, retirement savings, diversified portfolios for investment funds, bonds, educational savings, trusts, insurance, loans, and many more. It also allows basic banking operations such as deposits, withdrawals, transfers, mortgages, and investments to clients and companies.


  • Address: 388 Greenwich Street, New York, NY 10013, USA.
  • Phone Number: +1 210-677-0065 (Customer Service).