United States eSIM with Calls & Phone Number
USA eSIM from 23,95€ with a real US phone number (+1): unlimited AT&T 5G data, unlimited US calls & texts, plus calls to 100+ countries. SMS codes arrive right on your phone to register WhatsApp & any app — no extra app needed. Instant QR setup, no contract.
Validity starts at purchase. Install once — please don't delete it. 50GB high-speed, then throttled to 512 kbps.
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How does Simbye eSIM work for the USA?
Get connected in under 2 minutes
Set it up at home
An email with a link and a QR code arrives the moment you buy. Set the eSIM up at home on WiFi, it takes two minutes. Your normal plan stays untouched in the phone. Your month starts on the day you buy — so order a few days before you fly.
Switch it on after landing
Whether you arrive at JFK or Newark in New York, in Los Angeles, Miami, Chicago O'Hare, San Francisco, Orlando or Las Vegas: turn off airplane mode, turn on data roaming for the new line — you are online after a minute or two.
Use your US number
Your +1 number is ready for calls and texts straight away. Enter it wherever a phone number is asked for: rental car, Uber, restaurant waitlist, verification codes. Your number from home can stay in the phone alongside it, so people can still reach you there.
Check Device Compatibility
Make sure your device supports eSIM before purchasing
Which networks will you be on in the USA?
Your USA eSIM connects to AT&T on its own — there is nothing for you to set up.
AT&T
Source: Speedtest Global Index, national median, July 2026.
The eSIM is fixed to AT&T. As soon as you land and switch off airplane mode, your phone finds the network by itself; you do not have to pick a network or type anything in. The only thing that matters is that data roaming is switched on for the new line — that is normal for an eSIM bought abroad and costs nothing extra. If there is still no signal after a few minutes, switching airplane mode on and off once almost always does the trick.
AT&T is one of the three nationwide networks in the United States. At the gate in JFK, Newark, LAX or Miami International you are usually online before you reach baggage claim. In New York, Los Angeles, Chicago, Houston, Miami, San Francisco, Boston and Seattle you will normally be on 5G, with solid LTE in the suburbs and along the big interstates, and reception is a non-issue in Las Vegas, Orlando, New Orleans and San Diego too. It gets thin where almost nobody lives: Death Valley, large parts of Yellowstone and Yosemite, the canyon country around Zion and Bryce, the desert between Las Vegas and California, and the Rockies. That applies to every American network, not just AT&T — if you are planning a road trip through the national parks, download your maps for offline use before you set off.
eSIM or a local SIM card in the USA?
Here the eSIM gives you both: a US number with +1 for calls and texts, installed before you fly. A carrier store means a queue, a form, often your passport anyway, and sales tax added at the register.
Why roaming on your home plan gets expensive in the USA
Whatever country you fly in from, your operator treats the USA as a foreign network with a price list that has nothing to do with your domestic allowance. Some carriers sell day passes, others charge by the megabyte, others again bundle the USA into a paid add-on. The number that applies to you is written in your own plan overview under USA, international or worldwide. We deliberately quote no prices here, because they differ from contract to contract.
The second point is easy to miss: even with an expensive roaming pack you still carry your home number in the phone. American services that ask for a phone number often cannot handle it, and every incoming text and call still runs through your roaming rate. A prepaid line with its own +1 number solves both at once.
A USA eSIM, an e SIM USA, a US travel SIM — all the same thing: a digital SIM card that you buy online, install from a QR code and use without a contract, a deposit or a store visit.
Where the AT&T network reaches — and where it does not
AT&T is one of the three nationwide networks. In the big cities — New York, Los Angeles, Chicago, Houston, Miami, San Francisco, Boston, Seattle, Washington — you will usually be on 5G, with solid LTE in the suburbs and along the major interstates: I-95 down the East Coast, I-10 across the south, I-5 up the West Coast. Reception is a non-issue in Las Vegas, Orlando, New Orleans and San Diego as well.
It looks different where almost nobody lives. In Death Valley, across large parts of Yellowstone and Yosemite, in the canyons around Zion and Bryce, in the desert between Las Vegas and Los Angeles and high up in the Rockies there are long stretches with no signal at all. That is not a shortcoming of this eSIM — it applies to every American network equally.
In practice: if you are planning a road trip through the national parks, download the route as an offline map beforehand and send the message home from the last town before you head in. Inside the parks you will usually have coverage at the visitor center and on the main approach roads, but not in the backcountry.
How much data do you need in the USA?
So you can work it out instead of guessing: how much an hour costs in the apps you actually use on holiday.
Just staying reachable
1–3 GB
Messages, the map now and then, checking mail. Everything else runs on the hotel Wi-Fi.
An ordinary holiday
5–10 GB
Navigating, social media, uploading photos, a few videos in the evening.
Out a lot, or a laptop along
20 GB and up
Streaming in the evening, video calls home, keeping a laptop or tablet online through your phone.
Data used per hour
The Netflix and Spotify figures come from the providers themselves (Netflix Help Center, Spotify Support, retrieved 28 Aug 2026). The rest are network-operator estimates (o2, Vodafone, EE) and vary with picture quality and reception.
What does an eSIM for the USA cost?
Simbye offers 3 plans for the USA from €23,95 to €42,95 — prepaid, no contract.
Validity runs from 10 to 30 days and starts on the day of purchase.
| Plan | Validity | Price | Per travel day |
|---|---|---|---|
| Unlimited | 10 days | €23,95 | — |
| Unlimited | 20 days | €32,95 | — |
| Unlimited | 30 days | €42,95 | — |
- Networks
- AT&T
- Setting it up
- A link in your email, or the QR code — one tap is enough
- Network technology
- 4G/LTE — and 5G where the network already offers it
- APN and settings
- Nothing on iPhone. On Android, set the APN to "ereseller"
- Calls and texts
- Included, with your own number
- Number's dialling code
- +1 (USA)
- Your own number
- Stays in the phone and stays reachable
- Contract
- None. The plan ends by itself
- Worth knowing
- Roaming on your home contract gets billed here — this eSIM is prepaid, so nothing is added afterwards
Frequently Asked Questions about United States eSIM with Calls & Phone Number
Data, calls, real phone numbers, top-ups and setup — everything you need to know before you buy a Simbye eSIM.
