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AhaBulb: Stuff Everyone Should Know · ahabulb.com/trav-local-sim-card-local-phone

If your phone can take one, what does a local SIM card bought abroad do?

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  1. Adds free roaming to your US plan
  2. Blocks all incoming calls from home
  3. Gives your phone a local number in that country

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References

  1. FCC Tip Sheet: Wireless World Travel Made Simple docs.fcc.gov/public/attachments/DOC-298907A1.pdf Checked 2026-10-10.

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