Your complete guide to dialling United States from Washington, D.C. to anywhere in the world — verified +1 country code, America/New_York time zone, Americas region, ISO references, live local time and weather, plus a step-by-step walkthrough.
Calling
United States
+1
Washington, D.C.
Weather
HD voice signal
Alpha-2
US
Alpha-3
USA
United States
US
2 Digit ISO
+1
Country Calling Code
USA
3 Digit ISO
Capital
Washington, D.C.
Time zone
America/New_York
Weather · Washington, D.C.
Humidity
Wind
United States
+1
Capital
Washington, D.C.
Region
Americas
Time zone
America/New_York
Coordinates
37.09°, -95.71°
Numbering zone
Zone 1
Code length
1 digit
Several routes connect you to United States (+1) landlines, calling cards and modern VoIP services. Pick the one that fits your call volume and budget.
Dial your exit code (011 (North America) or 00 (most other countries)), enter +1, then the local United States number — dropping any leading 0. United States's 1-digit country code puts it in ITU Zone 1 of the global E.164 numbering plan.
United States is in ITU Zone 1 — one of the lowest-cost destinations for pre-paid cards globally. Factor in the America/New_York time zone when planning the call.
Apps like Skype, WhatsApp and Viber, and business VoIP from TKOS are the cheapest route to United States (+1) — Americas routes over European and Atlantic fibre links — latency is typically under 100 ms on broadband.
The cost of calling United States varies depending on the method and service provider you choose. Compare landline, VoIP and calling-card routes side by side.
VoIP · overview
Cheapest route to United States — internet-based.
Choose TKOS for business-grade calls to United States, or consumer apps like Skype, WhatsApp or Viber for casual chats.
Sign up with an email or phone number, then verify your identity if required.
App-to-app calls are usually free; calls to mobile/landline numbers need a small balance or a subscription plan.
Enter +1 followed by the United States subscriber number (drop any leading 0).
VoIP works on phones, laptops, tablets and desk phones wherever you have internet.
If audio drops, try switching from cellular to Wi-Fi or move closer to your router.
Capital
Washington, D.C.
Population
333.29M
Area
9,833,517 km²
GDP (USD)
$27.36T
Currency
US Dollar (USD $)
Languages
English
Emergency number
911
Internet TLD
.us
Drive side
Right-hand traffic
Latitude / Longitude
37.09°N / 95.71°W
Time zone
America/New_York
ISO 3166 codes
US · USA
A complete international number is built from four parts. Here's the anatomy and the dialling order.
Number anatomy
Format follows ITU-T Recommendation E.164 the international public telecommunication numbering plan.
Press + on a mobile (hold the 0 key), or dial 00 from most countries / 011 from North America.
Dial +1. This identifies United States on the global telephone network.
Type the first part of the local number. Drop the leading 0 if there is one.
The remaining digits route the call to the specific line in Washington, D.C. or elsewhere.
Need an inbound United States number?
TKOS provisions +1 DIDs and termination through direct carrier interconnects.
Whether you're reaching United States for business or family, three habits keep every conversation crystal clear and a clean route from TKOS handles the rest.
North American and Caribbean routes to United States support G.722 wideband on most carriers — an HD-compatible headset makes the gap between good and great audio obvious.
Intra-Americas routes to United States stay under 80ms — even Wi-Fi is usually sufficient, but a wired connection removes the last variable during long back-to-back calls.
Schedule United States calls during Washington, D.C. business hours — 09:00–17:00 America/New_York — your contact will be at their desk in a quiet space rather than taking the call on the move.
Built on top of every United States (+1) route quality, price, and people you can reach.
TKOS terminates United States traffic on Zone 1 carrier interconnects. Some of the lowest round-trip latency globally, with HD voice on every call.
United States is a Zone 1 destination — among the lowest per-minute tiers globally. Transparent per-minute rates for United States (+1), no hidden fees.
Your account manager covers America/New_York hours for United States. Phone, email, and live chat — always online for Washington, D.C. routes, day or night.
Provider report
TKOS
Overall
A+
Score
9.6/ 10
Coverage
A+Direct routes to United States
Reliability
A+99.99% uptime SLA
Support
A24/7 live agents
Pricing
ATransparent per-minute
Audit scope
United States +1
When selecting an international calling service for United States, four factors separate the durable providers from the noise. Look for a proven track record on each.
United States is Zone 1 — verify direct termination, not routing through a gateway that adds unnecessary hops.
Zone 1 has ample carrier choice — accept nothing below 99.99% SLA with automatic failover on United States routes.
Confirm coverage for America/New_York hours — a Washington, D.C. route issue at 09:00 needs a human response, not a next-day ticket.
United States is Zone 1 — rates should be among the lowest globally. Push back on any premium quote.
Special-rate prefixes and the major city area codes inside United States (+1).
| National | Dial codes |
|---|---|
| NANP Toll Free | +1-800 |
| North America Toll Free 48 Contiguous | +1-800 |
| North America Toll Free British Virgin Islands | +1-800 |
| North America Toll Free Canada | +1-800 |
| North America Toll Free US Virgin Islands | +1-800 |
| USA/Canada Toll Free (True 800) | +1-800 |
| USA/Tollfree-Payphone | +1-855 |
| Virtual Number Type Description USTF-ALL | +1 (888, 877, 866, 855, 844) |
| Virtual Number Type Description USTF-GUAM | +1(888, 877, 866, 855, 844) |
| City | Dial codes |
|---|---|
| ABILENE | +1-325 |
| AKRON | +1-234 |
| ALBANY | +1-229 |
| ALBUQUERQUE | +1-505 |
| ALEXANDRIA | +1-320 |
| ALTON | +1-618 |
| ANAHEIM | +1-714 |
| ANCHORAGE | +1-907 |
| ANN ARBOR | +1-278 |
| ARLINGTON | +1-571 |
| ASHEVILLE | +1-828 |
| ASHLAND | +1-606 |
| ATLANTA | +1-470 |
| ATLANTIC CITY | +1-609 |
| AUGUSTA | +1-706 |
| AURORA | +1-331 |
| AUSTIN | +1-512 |
| BALTIMORE | +1-410 |
| BATON ROUGE | +1-225 |
| BELLEVUE | +1-425 |
| BELLINGHAM | +1-360 |
| BETHESDA | +1-240 |
| BETHLEHEM | +1-835 |
| BILLINGS | +1-406 |
| BILOXI | +1-228 |
| BIRMINGHAM | +1-205 |
| BLOOMINGTON | +1-952 |
| BOISE | +1-208 |
| BOSTON | +1-617 |
| BRATTLEBORO | +1-802 |
| BRENTWOOD | +1-631 |
| BRIDGEPORT | +1-475 |
| BROOKLYN | +1-347 |
| BRYAN | +1-979 |
| BURBANK | +1-747 |
| CAMDEN | +1-856 |
| CAPE CORAL | +1-239 |
| CEDAR RAPIDS | +1-319 |
| CHAMPAIGN | +1-217 |
| CHARLESTON | +1-304 |
| CHARLOTTE | +1-704 |
| CHATTANOOGA | +1-423 |
| CHICAGO | +1-312 |
| CHICOPEE | +1-413 |
| CICERO | +1-464 |
| CINCINATTI | +1-283 |
| CINCINNATI | +1-513 |
| CLARKSVILLE | +1-931 |
| CLEVELAND | +1-216 |
| COLUMBIA | +1-803 |
| COLUMBUS | +1-380 |
| CONCORD | +1-925 |
| CORPUS CHRISTI | +1-361 |
| DALLAS | +1-469 |
| DALY CITY | +1-650 |
| DANVILLE | +1-276 |
| DAVENPORT | +1-563 |
| DAYTON | +1-937 |
| DAYTONA BEACH | +1-386 |
| DENTON | +1-940 |
| DENVER | +1-303 |
| DETROIT | +1-679 |
| DODGE CITY | +1-620 |
| DULUTH | +1-218 |
| EAU CLAIRE | +1-534 |
| EDISON | +1-732 |
| EL PASO | +1-915 |
| ELIZABETH | +1-908 |
| ELMIRA | +1-607 |
| ERIE | +1-814 |
| ESCONDIDO | +1-442 |
| EUGENE | +1-458 |
| EVANSVILLE | +1-812 |
| FARGO | +1-701 |
| FAYETTEVILLE | +1-910 |
| FLINT | +1-810 |
| FORT LAUDERDALE | +1-754 |
| FORT SMITH | +1-479 |
| FORT WAYNE | +1-260 |
| FORT WORTH | +1-817 |
| FRESNO | +1-559 |
| GAINESVILLE | +1-352 |
| GALVESTON | +1-409 |
| GARY | +1-219 |
| GRAND JUNCTION | +1-970 |
| GRAND RAPIDS | +1-616 |
| GRANT | +1-231 |
| GREEN BAY | +1-274 |
| GREENVILLE | +1-864 |
| HAMILTON | +1-254 |
| HAMMOND | +1-985 |
| HARTFORD | +1-860 |
| HEMPSTEAD | +1-516 |
| HONOLULU | +1-808 |
| HOUSTON | +1-281 |
| HUNTSVILLE | +1-936 |
| INDIANAPOLIS | +1-317 |
| IOWA CITY | +1-515 |
| IRVINE | +1-949 |
| JACKSON | +1-731 |
| JACKSONVILLE | +1-904 |
| JERSEY CITY | +1-201 |
| JONESBORO | +1-870 |
| KANSAS CITY | +1-816 |
| KEARNEY | +1-308 |
| KENOSHA | +1-262 |
| KINGSTON | +1-845 |
| KNOXVILLE | +1-865 |
| LAFAYETTE | +1-765 |
| LAKELAND | +1-863 |
| LANCASTER | +1-740 |
| LANSING | +1-517 |
| LARAMIE | +1-307 |
| LAREDO | +1-956 |
| LAS CRUCES | +1-575 |
| LAS VEGAS | +1-702 |
| LAWTON | +1-580 |
| LEXINGTON | +1-859 |
| LITTLE ROCK | +1-501 |
| LONG BEACH | +1-562 |
| LOS ANGELES | +1-213 |
| LOUISVILLE | +1-502 |
| LOWELL | +1-351 |
| LUBBOCK | +1-806 |
| LYNCHBURG | +1-434 |
| LYNN | +1-781 |
| MACON | +1-478 |
| MADISON | +1-608 |
| MANCHESTER | +1-603 |
| MANKATO | +1-507 |
| MARSHALL | +1-660 |
| MASON CITY | +1-641 |
| MEDINA | +1-830 |
| MEMPHIS | +1-901 |
| MIAMI | +1-305 |
| MILWAUKEE | +1-414 |
| MINNEAPOLIS | +1-612 |
| MOBILE | +1-251 |
| MONTGOMERY | +1-334 |
| NAPERVILLE | +1-630 |
| NASHVILLE | +1-615 |
| NEW CASTLE | +1-724 |
| NEW ORLEANS | +1-504 |
| NEW YORK CITY | +1-212 |
| NEWARK | +1-862 |
| NIAGARA FALLS | +1-716 |
| OAKLAND | +1-341 |
| ODESSA | +1-432 |
| OKLAHOMA CITY | +1-405 |
| OMAHA | +1-402 |
| ORLANDO | +1-321 |
| OTSEGO | +1-269 |
| OWENSBORO | +1-270 |
| PHILADELPHIA | +1-215 |
| PHOENIX | +1-480 |
| PITTSBURGH | +1-412 |
| PLYMOUTH | +1-763 |
| POMONA | +1-626 |
| PONTIAC | +1-248 |
| PORT ST LUCIE | +1-772 |
| PORTLAND | +1-207 |
| PROVIDENCE | +1-401 |
| PUEBLO | +1-719 |
| RALEIGH | +1-984 |
| REDDING | +1-530 |
| RENO | +1-775 |
| RICHMOND | +1-804 |
| RIVERSIDE | +1-951 |
| ROANOKE | +1-540 |
| ROCHESTER | +1-585 |
| ROCK ISLAND | +1-309 |
| ROCKFORD | +1-779 |
| ROCKY MOUNT | +1-252 |
| SACRAMENTO | +1-916 |
| SAGINAW | +1-989 |
| SALINAS | +1-831 |
| SALT LAKE CITY | +1-385 |
| SAN ANTONIO | +1-210 |
| SAN DIEGO | +1-619 |
| SAN FRANCISCO | +1-415 |
| SAN JOSE | +1-408 |
| SANTA BARBARA | +1-805 |
| SANTA CLARITA | +1-661 |
| SANTA MONICA | +1-424 |
| SANTA ROSA | +1-707 |
| SARASOTA | +1-941 |
| SAULT STE MARIE | +1-906 |
| SAVANNAH | +1-912 |
| SCRANTON | +1-570 |
| SEATTLE | +1-564 |
| SHREVEPORT | +1-318 |
| SILVER SPRING | +1-227 |
| SIOUX CITY | +1-712 |
| SIOUX FALLS | +1-605 |
| SOUTH BEND | +1-574 |
| SPOKANE | +1-509 |
| SPRINGFIELD | +1-417 |
| ST. CHARLES | +1-636 |
| ST. GEORGE | +1-435 |
| ST. LOUIS | +1-557 |
| ST. PAUL | +1-651 |
| ST. PETERSBURG | +1-727 |
| STARKVILLE | +1-662 |
| STOCKTON | +1-209 |
| SYRACUSE | +1-315 |
| TACOMA | +1-253 |
| TALLAHASSEE | +1-850 |
| TAMPA | +1-813 |
| TOLEDO | +1-567 |
| TOPEKA | +1-785 |
| TROY | +1-947 |
| TUCSON | +1-520 |
| TULSA | +1-918 |
| TYLER | +1-903 |
| VIRGINIA BEACH | +1-757 |
| WARREN | +1-586 |
| WASHINGTON | +1-202 |
| WAUKEGAN | +1-224 |
| WEST PALM BEACH | +1-561 |
| WICHITA | +1-316 |
| WILMINGTON | +1-302 |
| WORCESTER | +1-508 |
| YONKERS | +1-914 |
| YUMA | +1-928 |
Everything a business or traveller needs to know before dialling United States (+1). Can't find an answer? Our team is one click away.
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The route you pilot today is the route that carries your millionth minute to United States (+1). No migration. No replatforming. No renegotiation.