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Roaming vs eSIM

AT&T International Day Pass vs a travel eSIM

Short answer: AT&T International Day Pass costs $12.00 a line per day (up to 10 days per bill period). Two weeks in Japan comes to $120.00; NUM’s 14-day Japan eSIM was $4.79 on 4 Nov 2026. Keep your AT&T number for calls and use the eSIM for data.

Traveler using a Japan eSIM at Shibuya Crossing in Tokyo at night
Japan eSIM: online at Shibuya Crossing, Tokyo

International Day Pass vs NUM, trip by trip

AT&T: International Day Pass at $12.00 a day per line, at most 10 daily fees per bill period (www.att.com, 5 Nov 2026). NUM: the shop’s pick on 4 Nov 2026.
TripInternational Day PassNUM eSIM
Japan, 7 days$84.00$3.39
3 GB
Get it
Japan, 14 days$120.00$4.79
5 GB
Get it
Japan, 30 days$120.00$6.89
10 GB
Get it
Mexico, 7 days$84.00$6.59
3 GB
Get it
Mexico, 14 days$120.00$9.79
5 GB
Get it
Mexico, 30 days$120.00$16.19
10 GB
Get it
Italy, 7 days$84.00$2.99
3 GB
Get it
Italy, 14 days$120.00$4.39
5 GB
Get it
Italy, 30 days$120.00$6.29
10 GB
Get it
United Kingdom, 7 days$84.00$2.99
3 GB
Get it
United Kingdom, 14 days$120.00$4.39
5 GB
Get it
United Kingdom, 30 days$120.00$6.29
10 GB
Get it
France, 7 days$84.00$3.29
3 GB
Get it
France, 14 days$120.00$4.79
5 GB
Get it
France, 30 days$120.00$6.29
10 GB
Get it
Spain, 7 days$84.00$2.99
3 GB
Get it
Spain, 14 days$120.00$4.39
5 GB
Get it
Spain, 30 days$120.00$6.29
10 GB
Get it
China, 7 days$84.00$3.79
3 GB
Get it
China, 14 days$120.00$4.99
5 GB
Get it
China, 30 days$120.00$8.09
10 GB
Get it
Thailand, 7 days$84.00$4.29
3 GB
Get it
Thailand, 14 days$120.00$5.59
5 GB
Get it
Thailand, 30 days$120.00$7.69
10 GB
Get it
South Korea, 7 days$84.00$4.29
3 GB
Get it
South Korea, 14 days$120.00$5.89
5 GB
Get it
South Korea, 30 days$120.00$6.89
10 GB
Get it
India, 7 days$84.00$4.59
3 GB
Get it
India, 14 days$120.00$6.29
5 GB
Get it
India, 30 days$120.00$9.89
10 GB
Get it
Turkey, 7 days$84.00$2.69
3 GB
Get it
Turkey, 14 days$120.00$4.29
5 GB
Get it
Turkey, 30 days$120.00$5.29
10 GB
Get it
Philippines, 7 days$84.00$4.19
3 GB
Get it
Philippines, 14 days$120.00$5.79
5 GB
Get it
Philippines, 30 days$120.00$8.89
10 GB
Get it

What International Day Pass does that an eSIM doesn’t

It keeps your AT&T number working for calls and texts with no setup. A NUM eSIM is data only: you install it at home on wifi, and your number stays on the phone for codes and calls. Most travelers keep both: the home line for calls, the eSIM for data.

International Day Pass questions

How much does AT&T International Day Pass cost?

$12.00 per line per day. AT&T charges $12 for each day you use the line abroad ($6 for each extra line on the account that day), and never more than 10 daily fees per line per bill period. Data: your domestic plan’s data. Source: AT&T, checked 5 Nov 2026.

Is a travel eSIM cheaper than International Day Pass?

For data, usually by a lot. Two weeks in Japan on International Day Pass is $120.00 a line; NUM’s 14-day Japan pick on 4 Nov 2026 was 5 GB for $4.79.

Can I keep my AT&T number with an eSIM?

Yes. The eSIM carries your data; your AT&T line stays on your phone for calls and texts at home rates where your plan allows, or off while you travel. WhatsApp, iMessage and FaceTime work over the eSIM.

How do I avoid International Day Pass charges?

AT&T charges $12 for each day you use the line abroad ($6 for each extra line on the account that day), and never more than 10 daily fees per line per bill period. If you only need data, install a travel eSIM, set it as the data line, and turn off roaming on the AT&T line before you land.

Will it work on my phone?

Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.

When do I install it?

At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.

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