Their 1-800 numbers mostly do not connect from outside the US, and each agency gives callers abroad a different number or route. Here is each one as the agency publishes it, with its hours in your own time. From this browser any of them, the 1-800 lines included, rings like a call from inside the US, for $0.02 a minute.
Read on each agency's own page, linked under each number, on November 10, 2026. Hours are the agency's, in US Eastern time; the line under them says what that is where you are.
IRS
267-941-1000
Call from your browserMonday to Friday, 6 a.m. to 11 p.m. Eastern time.
Not toll-free: the IRS lists it for international callers and overseas taxpayers. Its 1-800-829-1040 line is meant for callers in the US, Puerto Rico and the US Virgin Islands. The same page offers an international live chat for account questions.
Social Security
1-855-522-6936
Call from your browser7:00 a.m. to 5:00 p.m. Eastern time. The page does not name the days; the times below assume weekdays.
A toll-free number Social Security means to be reachable around the world, but it warns that your local carrier may charge for the call from outside the US. From a browser it is an ordinary US call. There are no Social Security offices abroad: the Federal Benefits Units at US embassies handle in-person help.
State Department
1-202-501-4444
Call from your browserusa.gov lists this number for emergencies abroad and gives no hours.
The regular number for the Bureau of Consular Affairs' emergency line. Its toll-free twin, 1-888-407-4747, is the one to use from the US and Canada. If someone is in immediate danger, call the local emergency number first, then the nearest US embassy or consulate.
State Department
1-877-487-2778
Call from your browserusa.gov gives no hours for this line.
Toll-free, so it usually will not connect from a phone outside the US and Canada; from a browser it rings like a call from inside the US. To renew or replace a passport while abroad, the application itself goes through the nearest US embassy or consulate.
USCIS
212-620-3418
Call from your browserThe Contact Center answers live calls Monday to Friday, 8 a.m. to 8 p.m. Eastern time.
USCIS gives this number under “Outside the U.S?”; its toll-free 800-375-5283 is for callers in the US. Have your receipt number or A-number ready.
Source: uscis.gov: Contact Center
Every US number, toll-free or not, costs the same $0.02 a minute from whichever country you are in. There is no connection fee and no subscription, and you see the price before it rings.
Add credit from $5 (a one-time payment, no subscription) and call. Your credit never expires. Prices updated November 10, 2026.
Have the document the call is about in front of you: your Social Security number or ITIN, the notice or letter, a receipt or case number, your passport.
Leave yourself time: a call to a federal agency can mean a long wait on hold, so start it when you can stay on the line, inside the hours shown in your time above.
Use a headset or earbuds and a steady Wi-Fi connection: a long hold over a weak mobile signal is where calls drop.
Only call numbers from the agency's own website. Fake government numbers in ads and search snippets are a common scam, and no US agency asks for payment in gift cards or crypto.
Some countries restrict internet calling to approved apps (the United Arab Emirates is the best known), so there, use a local phone. And this service is not for emergency calls: dial the local emergency number of the country you are in.
Not by dialing it from a foreign or roaming phone: US toll-free numbers normally take calls only from the US and Canada. The IRS gives international callers 267-941-1000 instead, which is not toll-free. A call from this browser starts inside the US, so it reaches either number at $0.02 a minute.
From this browser every US number, toll-free or not, costs $0.02 a minute, so an hour on hold costs about $1.18. On a roaming phone the same hour is billed as an international call by your carrier.
Yes. Agencies identify you by the details you give on the call (your Social Security number, a receipt or case number, your date of birth), not by the number you call from. The number they see is a US number, not yours.
No. WhatsApp and FaceTime calls only reach other WhatsApp or FaceTime users. An agency's line is an ordinary phone line, so it needs a service that calls phone numbers.
No. For an emergency, dial the local emergency number of the country you are in from a local phone. For a US citizen in trouble abroad, the nearest US embassy or consulate and the State Department's overseas line in the table are the right contacts.
Need a bank, card issuer or airline instead? How to call a US 1-800 number from abroad has their numbers for callers outside the US.
Type the number, see the price, and it rings like a call from inside the US. Nothing to install, and you pay only for the minutes you use.
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