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International roaming

Using your domestic phone plan in another country. Usually expensive ($5–10/day or per-MB rates) unless your plan explicitly includes the destination country.

Roaming means using your phone on a foreign carrier's network. Voice, text, and data roaming are billed separately and can be very expensive without a plan that includes the destination.

How US carriers handle international roaming

  • Verizon TravelPass: $10/day in supported countries — uses your domestic data + minutes for that day.
  • T-Mobile Go5G/Magenta: Free unlimited 2G data + texting in 215+ countries; voice 25¢/min. Higher tiers add 5G in 11 countries.
  • AT&T International Day Pass: $12/day for unlimited talk/text/data in 200+ countries.
  • Google Fi: Same per-GB rate as in the US, in 200+ countries. Best for unlimited-flexibility travelers.

The cheaper alternative: travel eSIMs

Buying a local eSIM via providers like Airalo, Holafly, GigSky, or Saily often costs $5–25 for a few GB — usually cheaper than your home carrier's roaming. Modern phones support multiple eSIMs simultaneously, so you can keep your US line active for receiving calls/texts and use the travel eSIM for data.

Practical advice

For 1-2 week trips, day passes from your home carrier are simplest. For longer trips or heavy data use, a travel eSIM is much cheaper. For frequent international travel, Google Fi's flat global pricing pays off quickly.

Related terms in Plans, billing & data

Hotspot
Using your phone as a Wi-Fi router for nearby devices (laptop, tablet). Most plans include some hotspot data; cheaper plans cap or speed-limit it.
Lifeline (federal phone subsidy)
Lifeline is a federal program providing $9.25/month wireless service subsidies (or $34.25 on Tribal lands) to low-income households. Carriers like SafeLink, Assurance, and Q Link participate. Most subscribers get free monthly service plus a basic phone.
Family plan
Family plans bundle multiple lines on one account at a per-line discount. Usually the more lines, the lower the per-line cost — typically 30–50% cheaper than single-line equivalents at four or five lines.

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