| Region / Service | Phone Number | Notes |
|---|---|---|
| Citi Customer Service (General Banking) | 1-888-248-4226 | Regional support line |
| TTY for Hearing Impaired | 1-800-325-2865 | Regional support line |
| General Citi Credit Card Support | 1-800-950-5114 | Regional support line |
| Spanish Support / Credit Card | 1-800-947-9100 | Regional support line |
| Lost or Stolen Credit Card (U.S.) | 1-800-950-5114 | Automated system, available day & night |
| Citi Personal Loans | 1-800-685-0935 | Regional support line |
| Home Equity Services | 1-877-362-9100 | Regional support line |
| Citi Private Bank / Wealth Management: | 1-800-846-5200 | Regional support line |
| From outside the U.S. (collect calls) | 1-605-335-2222 | Regional support line |
Citigroup Inc. (Citi) is one of the largest and most internationally diverse financial institutions in the world. Headquartered in New York City, Citigroup is a global banking and financial services corporation with more than $1.7 trillion in assets (2025), making it the third-largest U.S. bank by assets after JPMorgan Chase and Bank of America.
The company operates under two primary brands:
Citibank – for consumer and retail banking.
Citi – for corporate, institutional, and investment banking.
Citigroup was formed in 1998 through the merger of Citicorp and Travelers Group, creating the world’s first true financial services “supermarket,” combining retail banking, insurance, investment banking, and asset management under one umbrella.
Citi’s defining characteristic is its international presence. Unlike other U.S. banks, Citi has the broadest foreign network, with operations in 95 countries and relationships in over 160 countries. This makes it the go-to bank for multinational corporations, governments, and expatriates.
Citi has about 200 million customer accounts worldwide, offering everything from retail banking to complex derivatives trading. While it scaled back some consumer banking in smaller international markets in recent years, it remains one of the strongest global brands in financial services.
Global Consumer Banking (Citibank) – Retail banking, credit cards, mortgages, and small business services.
Institutional Clients Group (ICG) – Corporate and investment banking, treasury and trade solutions, securities services.
Global Wealth Management – Serving affluent and high-net-worth individuals with financial planning and private banking.
Legacy Franchises – Businesses Citi is exiting in non-core markets, but still part of its financial structure.
Global Network: The only U.S. bank with retail branches in dozens of countries.
Credit Cards Leadership: Citi is one of the largest credit card issuers in the U.S. and globally, with popular products like Citi® Double Cash and Citi Premier®.
Corporate and Institutional Banking: Citi is a leader in international payments, trade finance, and currency services.
Digital Banking: Citi has invested heavily in online banking platforms and mobile-first solutions, though its U.S. retail branch footprint is smaller compared to Chase or Bank of America.
Citi has faced challenges, particularly during the 2008 financial crisis, when it required a massive government bailout. Since then, it has restructured operations, shed risky assets, and refocused on core strengths like credit cards and international corporate banking. Today, Citi is considered financially stable and globally indispensable due to its role in international markets and cross-border banking.