
“Your first line of survival: staying connected.”
Staying connected is essential for everything—mobile banking, transport, navigation, and communication. Getting a US SIM card and sorting your paperwork immediately on arrival will help you access services and stay in touch with friends, family, and your team.
Step-by-Step Actions
Pick a SIM provider:
Popular choices for immigrants: T-Mobile, Mint Mobile, AT&T, Verizon. SIMs can be bought at their stores, electronic retailers (Best Buy, Target), or at SFO airport kiosks.Activate eSIM or physical SIM:
For eSIM, use provider apps or scan a QR code at a store. iPhone and Android guides are available here: eSIM.net setup, Apple activation guide. For physical SIMs, insert and follow on-screen instructions.Port your Indian number:
You can keep your Indian number active for OTPs and WhatsApp via Airtel International Roaming or comparable plans for initial weeks. Indian number porting guide: Paytm MNP steps. Most just switch WhatsApp to US SIM once settled.Paperwork checklist:
Passport
US Visa + most recent I-94 (download from CBP portal or see I-94 guide)
US address (hotel/temporary works)
Sometimes carriers may ask for these at purchase; keep them handy.
Resources / Links
Pro Tips / Indian Immigrant Notes
Airtel, Jio, and Vodafone postpaid international roaming typically work for 1–2 weeks for SMS/OTP and calls, but data is expensive—switch to a US SIM ASAP.
Your Indian WhatsApp account can be retained even after switching your number to the US SIM. Follow WhatsApp international number guide.
Indian driving license + International Driving Permit (IDP) is usually accepted for car rentals initially—check with rental agencies for exact policy.
Some providers, especially Mint Mobile, let you buy and activate a SIM online before arriving; see campusSIMS + Mint Mobile.
Quick Checklist
Get a US SIM card/eSIM (T-Mobile, Mint, AT&T, Verizon)
Activate the SIM and set up data
Keep passport, visa, and I-94 handy for activation
Update address info (hotel/temporary address acceptable)
Set up WhatsApp and other apps with new number
Check for scam rental listings; only pay deposits after in-person viewings (Craigslist rental safety)
Continue Exploring In
Essentials

Uber/Renting a car
Essentials

Bank & Bureaucracy
Essentials

Day 0 to 7 checklist
Essentials

Sim cards + paperwork
Essentials
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