The Best US eSIM and Physical SIM Card

Internet data as low as $3.66 per GB with data package
No Contracts - Pay only for the calls you make
FREE Incoming Calls in US and 127 Countries
Outgoing Calls only $1000.00 per minute
FREE Incoming SMS Text Messages in US, North America and Worldwide
Internet Data Service in US and 170+ Countries
Add a US, Canadian or UK Personal Extra Number

Looking for a US eSIM or SIM card to use for international travel in US or other countries in North America? OneSimCard is an all-in-one US eSIM and physical SIM card solution that gives you more. With OneSimCard, our international eSIM and international SIM card will provide you with low-cost prepaid US cell phone service as well as international cell phone roaming in 200+ other countries. You simply pay for the calls, texts and data you use and keep the same international cell phone number no matter which country you are in.

Instead of buying a local US eSIM or physical SIM card at the airport that will expire quickly and can be very inconvenient to top-up, buy a OneSimCard global eSIM or international SIM card before you leave for your trip. While others search for mobile phone shops and wait in long lines to purchase local eSIMs and SIMs, you will be ready to use your international cell phone in US for calls, texts and data - the instant you land at the airport! What’s more, unlike competitor eSIMs or SIM cards, our eSIM and physical SIM cards are reusable for years (and trips) to come.

OneSimCard - is a perfect US SIM card solution for savvy travelers. Get OneSimCard today and start enjoying wireless freedom without the high cost.

Best Rates for US

eSIM

Data rates: from $0.02/MB, or from $0.003 with a data package

Physical SIM Card

Data rates: from $0.02/MB, or from $0.004 with a data package

OneSim VoIP App

Calling rates: from $0.02/min

All rates are shown in US dollars. Rates are per minute, SMS is per message sent.

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		Keep Your Domestic Numbers - Forward Calls To A Personal Extra Number

View numbers you can add to your US SIM Card in other countries

Order An International SIM Card For US Now

You get:

Unlimited FREE Incoming Calls in US
Outgoing calls only $1000.00 per minute within US or to the U.S., Canada and most countries
Unlimited FREE Incoming SMS text messages
Mobile data service from 5c/MB. Daily/Weekly and Monthly data packages available
Includes 2 cell phone numbers: Europe & USA or Canada. Add numbers in 60+ other countries
Automatic airtime recharge or top-up online or directly through your cell phone
Reduce the cost of calling to 2 c/min by using OneSimCard VoIP app

Physical 3-in-1 DataMax SIM card

DataMax eSIM

Notes:

US SIM card compatible devices

Using this US eSIM and physical SIM card will require an unlocked GSM cell phone with the necessary network frequency bands listed in the table above. If your U.S. or Canadian GSM cell phone is currently locked to a carrier like AT&T, T-Mobile or Rogers, you should be able to contact them and request an unlock code. There are also third-party services, for example at your local mall, that will unlock your phone for you for a small one-time fee.

Please refer to the list of cell phones compatible with OneSimCard. Most unlocked GSM cell phones are compatible with international eSIM and physical SIM cards from OneSimCard. If you do not currently have a compatible GSM unlocked cell phone for US, you can rent or purchase one from us.

Note: You will need an unlocked international cell phone even if you decide to purchase a local US eSIM and physical SIM card from elsewhere upon arrival in US. In contrast to that, with US SIM card solution from OneSimCard you will be ready to make and receive calls before you arrive in US.We recommend you test your eSIM or physical SIM card before you arrive in US.

US SIM card activation

Activating your US eSIM or physical SIM card is as simple as clicking a button in your online account. Activation can be done from anywhere using Internet.

Installing your US eSIM or SIM card is the same as any other eSIM or SIM card, please refer to your cellular device's manual for details.

If you have any questions about this US eSIM or physical SIM card or using a cell phone in US, please contact our Customer Support department here.

FAQ's

Can I use an eSIM in US?

Yes! Our DataMax eSIM is the best eSIM for US

Will my iPhone work in US?

Yes! If you have an unlocked iPhone you can use your iPhone in . To check if your iPhone is unlocked, open Settings and go to General > About. Scroll down to the Carrier Lock (or Network Provider Lock) section. If it displays "No SIM restrictions", your iPhone is completely unlocked and ready to use with any carrier

Will my Android work in US?

Yes! If you have an unlocked Android you can use your Android in . To check if your Android is unlocked, there are a couple of options:

Check with your carrier, or the company where you purchased the Android
Go to Settings>About phone. Then copy the IMEI 1 number (a long click will copy it). Then navigate to an IMEI checker like https://imeicheck.com/imei-check and paste your IMEI to check the lock status

Is WiFi common in US?

Like many countries, you will find that WiFi is usually available in hotels and cafes and internet cafes. WiFi is much less available in rural areas

What mobile networks operate in US?

T-Mobile USA - Physical 3-in-1 DataMax SIM card, DataMax eSIM

AT&T Mobility - Physical 3-in-1 DataMax SIM card, DataMax eSIM

Verizon Wireless - Physical 3-in-1 DataMax SIM card, DataMax eSIM

Can I use WhatsApp in US?

Yes! WhatsApp and any other previously installed messaging or VoIP app will work in . We would also suggest using our OneSim VoIP app for calling and texting. OneSim VoIP differs from other VoIP and messaging apps because it allows you to call any number (mobile or landlines) whether the person you are communicating with has the app or not.

Should I buy a SIM card before arriving in US?

Yes, we always recommend that you purchase and install the eSIM or physical SIM card before your trip. This step will ensure that you aren't scrambling to figure things out after you land. Having the eSIM or physical SIM already installed, activated, and tests means, when you land in US you will be able to use the eSIM or physical SIM as soon as you arrive.

Do I need to unlock my phone?

Yes, you want to make sure your device is unlocked before you leave for your trip.

How much data do I need for a trip to US?

It depends on how you will be using your phone. We have a great resource to help you understand how much data you consume using your device for particular purposes:

Activity	Approximate Data Usage
Web Browsing & Email	~60 MB per hour
VoIP (Voice over IP) like OneSIM VoIP	~30-90MB per hour of voice
Music Streaming	~100 to 150 MB per hour
Social Media (Text & Images)	~120 MB per hour
Social Media (Video, Reels & Stories)	Up to 1 to 2 GB per hour
Video Streaming (HD 1080p)	~1.5 to 2 GB per hour

Note: Actual data usage varies by app, video quality, autoplay settings, and content type. Video-heavy activities such as streaming, reels, and short-form video consume significantly more data than browsing, email, or music streaming.

If you have any questions about this US eSIM or physical SIM card or using your mobile device in US, please contact our Customer Support department here.

*Free International phone numbers available on Universal, eSIM World, Expedition and eSIM Asiania only. Voice and SMS available on the DataMax eSIM and physical SIM with OneSim VoIP and compatible Personal Extra Number.

US Quick Facts:

The United States is one of the world's largest, most influential, and most visited countries, known for its diverse landscapes, major cities, cultural influence, technological innovation, and economic power. Located in North America, the United States covers approximately 9.8 million square kilometers and consists of 50 states, stretching from the Atlantic Ocean to the Pacific Ocean.

The capital city is Washington, D.C., while the largest city is New York City. Other major cities include Los Angeles, Chicago, Houston, Miami, San Francisco, Las Vegas, Boston, Seattle, and Atlanta.

The United States has a population of more than 340 million people. English is the primary language, though Spanish and many other languages are widely spoken throughout the country. The national currency is the United States Dollar (USD).

The United States declared independence from Great Britain on July 4, 1776. Today, it is one of the world's largest economies and a global leader in technology, entertainment, education, finance, healthcare, and scientific research.

The country's geography is extraordinarily diverse. Visitors can experience everything from tropical beaches and deserts to mountains, forests, lakes, canyons, and glaciers.

One of America's most iconic landmarks is Statue of Liberty, a symbol of freedom and one of the country's most recognized attractions.

Another world-famous destination is Grand Canyon National Park, whose immense scale and dramatic landscapes attract millions of visitors each year.

The United States is home to many renowned national parks, including Yellowstone National Park, the world's first national park, and Yosemite National Park, famous for its waterfalls, granite cliffs, and giant sequoia trees.

Major cities offer unique attractions such as Times Square, Golden Gate Bridge, Walt Disney World Resort, and Las Vegas Strip.

The United States is also home to globally influential companies such as [Apple](https://www.apple.com?utm_source=chatgpt.com), [Microsoft](https://www.microsoft.com?utm_source=chatgpt.com), [Google](https://www.google.com?utm_source=chatgpt.com), and [Amazon](https://www.amazon.com?utm_source=chatgpt.com).

American cuisine varies significantly by region. Popular foods include hamburgers, barbecue, pizza, seafood, Tex-Mex dishes, Southern comfort food, and countless international culinary influences.

American football, basketball, baseball, ice hockey, and soccer are among the country's most popular sports. The United States hosts many major sporting events and professional leagues.

How is Mobile Coverage in the United States:

Mobile coverage in the United States is generally excellent throughout major cities, suburbs, highways, and populated areas. Operators such as AT&T, Verizon, and T-Mobile provide extensive 4G LTE and 5G coverage across most of the country. Coverage is generally reliable in tourist destinations, national parks, airports, and transportation corridors. Travelers visiting remote wilderness areas, deserts, mountain regions, or isolated national parks may occasionally experience weaker signals or no coverage. Using a multi-network international eSIM or SIM card can help maximize connectivity throughout the United States.

What to Expect When Landing in the United States

If you're arriving in the United States for tourism, business, education, or visiting family, you will most likely arrive through major international airports such as John F. Kennedy International Airport (New York), Los Angeles International Airport (LAX), Miami International Airport, Chicago O'Hare International Airport, San Francisco International Airport, or one of many other international gateways.

Immigration and Entry

Upon arrival, travelers proceed through immigration where officials from U.S. Customs and Border Protection review passports, visas, ESTA authorizations, and supporting travel documentation.

Keep the following readily accessible:

Passport with sufficient validity

Visa or approved ESTA authorization if applicable

Return or onward travel information

Hotel reservation or local address

Travel itinerary

Proof of sufficient travel funds if requested

Supporting business or invitation documents if applicable

Baggage Claim and Customs

After immigration, travelers collect their luggage before proceeding through customs screening. Customs procedures are generally thorough and may include questions regarding the purpose of travel, accommodations, and items being brought into the country.

Mobile Connectivity

Local SIM cards and eSIM plans are widely available throughout the United States and can be purchased at airports, carrier stores, electronics retailers, and convenience stores.

Travelers who install an international eSIM or activate an international SIM card before departure can usually connect immediately after landing, allowing access to maps, rideshare services, hotel information, and travel resources without delay.

Transportation from the Airport

Transportation options commonly include:

Official taxis

Uber and Lyft ride-hailing services

Airport trains

Metro and subway systems

Airport shuttle buses

Rental cars

Hotel transfers

Private transportation services

It is recommended to:

Use official transportation providers

Follow airport signage carefully

Book transportation through trusted applications

Allow extra travel time in major metropolitan areas

Traffic conditions can vary significantly depending on city and time of day.

Currency and Payments

The local currency is the United States Dollar (USD).

Credit and debit cards are accepted almost everywhere, including:

Hotels

Restaurants

Retail stores

Tourist attractions

Transportation services

Gas stations

Contactless payments such as Apple Pay and Google Pay are also widely accepted.

Cash remains useful for:

Small vendors

Tips and gratuities

Certain local businesses

Some transportation services

ATMs are widely available throughout the country.

Internet and Wi-Fi

Wi-Fi is widely available in hotels, airports, restaurants, cafes, shopping centers, public libraries, and many public spaces. The United States has extensive broadband and mobile network infrastructure, providing fast and reliable internet access throughout most populated areas. Airport Wi-Fi is generally available and suitable for most travel-related needs.

Best Preparation

Activate your eSIM or SIM card before departure

Arriving with mobile connectivity already active can make your first hours in the United States much smoother, especially if you need maps, hotel directions, rideshare services, transportation bookings, restaurant reservations, business communications, translation services, or access to travel information immediately after landing.