Getting a US phone plan without an SSN

Before you land, a US phone plan without an SSN starts with the prepaid side of the split below, where those carrier pages say no credit check. The number you are leaving stays on keep your number abroad.

The carrier matrix

This is the whole comparison the pages we read support. A blank in the credit-check column would be a claim we cannot make, so a field the carrier does not publish reads unverified.

unverified means the page we read does not state it. It does not mean the carrier refuses. The ID a store accepts is the carrier's current rule, and the matrix does not turn a university arrival page into that rule.

The T-Mobile, AT&T and US Mobile pages in this matrix were re-read on 20 October 2026. The AT&T Prepaid FAQ sentence quoted below was re-checked on 29 October 2026 after the old page title wording left that site. Infimobile's shop table was last read on 9 October 2026, and its terms are the ones read earlier; its site did not answer on 20 October 2026, so that row keeps those dates.

The American mobile market splits on a single question, and it is not about coverage or price. A prepaid line is bought; a postpaid line is underwritten. Everything else about arriving without a Social Security number follows from that.

What the carriers publish about the split

T-Mobile states both sides of it on one page. For prepaid it lists what activation needs, and then draws the line: "a credit check is not required, and no deposit is needed to activate service." Further down the same page, under switching to a postpaid plan, it sets out the opposite: "credit check: to get the ball rolling, a credit check is required. Anyone signing up must go through this process", and "deposit: you may need to make a deposit before your new monthly plan can be activated", per its prepaid self-service page.

AT&T puts the same distinction on its prepaid page. Its prepaid FAQ says: "With AT&T Prepaid wireless service for your cell phone, you get no annual contract, no credit check, easy activation, great plans, and cell phone choices to fit your needs."

US Mobile, a prepaid carrier that resells the major networks, describes itself in the same terms: "US Mobile is a prepaid carrier with the best cell phone plans and unlocked phones. The average monthly phone bill is $15. No contract or credit check needed."

Infimobile, another prepaid reseller, prints on its shop "no commitments, no credit checks, and no surprise charges." The T&Cs we opened do not print an SSN sentence. Identity documents at signup are unverified on the pages we opened. The shop table, the Authorized Areas clause and the refund form are on Infimobile prepaid. That plans page lists the 15GB card at $108 for 12 months.

The distinction that trips people up

A credit check, a Social Security number, and an identity document are three different gates.

T-Mobile's prepaid list, on the page quoted above, names a device serial number and a prepaid SIM, and says there is no credit check and no deposit. That sentence covers credit and a deposit. The accepted ID, and whether the shop asks for a Social Security number, are separate questions. AT&T's prepaid FAQ is the credit-check line quoted above. The ID a store accepts is a different rule.

Which documents a carrier accepts is that carrier's current requirement. A university arrival page can say what its students brought. It does not set the carrier's rule.

What this means in practice

• Start with prepaid where the carrier page says no credit check. A credit check, an SSN, and an ID remain three separate questions.
• Ask the carrier which ID it accepts now. A passport, visa paperwork, or a university letter may be what a campus guide mentions. The carrier's current requirement is the one that decides.
• Expect data-only products to have the lightest requirements, since they attach a SIM to a device rather than to a person in the same way.
• A prepaid US mobile number may meet a bank's number-type rule. The bank still has to register that number under its own rules, and delivery of a code is not guaranteed. The published conditions are on bank OTP abroad, including Capital One.
• Whether a carrier will activate before you land is unverified on the pages we read. The four routes in full are on SIM card, eSIM or US prepaid plan.

Once prepaid is the side you are choosing, the named single-line prices are on compare named prepaid plans. That page is a selected set of single-line plans. A price for a new number and a price for a port-in are different, and each offer has its own eligibility. Check the new-number price, the port-in price, and whether you qualify before you treat a figure as the price you will pay.

Where the state detail lives

Look at the plan before you add a state tax. US Mobile's plans page, read 19 October 2026, prints "Taxes & fees included" on the unlimited monthly cards, and its tax answer says some plans include taxes and fees while others can show a separate charge. Only a plan that adds tax on top needs the local figure. California, New York and Texas carry those local figures, and the universities that host the most international students. If you are a student choosing between data and calls home, the student matrix is on US phone plans for international students.