United States phone directory
Curated useful numbers for United States and how to dial +1 from abroad. Verify on official sources before calling.
How to dial
Use the full international format: +1 plus the national number. Drop a leading 0 from national numbers when you dial internationally. Always confirm numbers and hours on the institution's official website.
Full +1 dialing guide →Useful numbers in United States
Banking & payments
Citi (Citibank)
- Dial in WorldDial$0.03/min
Citibank international line
+1 210 677 0065
Government & public services
CBP (US Customs and Border Protection)
- Dial in WorldDial$0.03/min
CBP Information Center for callers outside the U.S.
+1 202 325 8000
Federal Student Aid (FAFSA)
- Dial in WorldDial$0.03/min
FSA International
+1 800 433 3243
US Passport Office (State Department)
- Dial in WorldDial$0.03/min
State Department Overseas Citizens
+1 202 647 4000
USCIS
- Dial in WorldDial$0.03/min
USCIS Contact Center from outside the US
+1 212 620 3418
VA (Department of Veterans Affairs)
- Dial in WorldDial$0.03/min
VA International Assistance
+1 800 827 1000
Health & social
Healthcare.gov (ACA Marketplace)
- Dial in WorldDial$0.03/min
Healthcare Marketplace International
+1 800 318 2596
Medicaid
No verified public line listed here, open the institution page for official numbers and hours.
Medicare
- Dial in WorldDial$0.03/min
1-800-MEDICARE in internationalized format
+1 800 633 4227 - Dial in WorldDial$0.03/min
Medicare TTY line in internationalized format
+1 877 486 2048
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