US Phone Number for Verification: Non-Resident Guide (2026)

"US number for verification" is searched about 5,400 times a month. The phrasing assumes the answer: get a US number, and the codes will arrive. For a founder who isn't a US tax resident and runs a US LLC from somewhere else, that assumption fails twice. Many of the accounts such a founder uses never ask for a US number. And the two best-known ways to get one run into location rules. Tello's help centre says its eSIM can't be activated abroad. A Google community expert's guide says the same of Google Voice, though Google's own pages don't state the rule.

There is a second number in the picture, too. The founder's home-country number still receives the codes for the home bank and the payment app. That number has its own rules for staying alive while you are abroad.

This guide covers both numbers. It quotes each provider's and regulator's own page as read on 2026-10-17, and the account-by-account data comes from the phone dimension of the Banking Access Index, GS's open dataset of US business accounts.

Which US accounts ask for a US phone number

The index records three things about each provider's phone rules: whether a US number is required, whether a VoIP block is published, and what 2FA works without a phone. Across the 19 providers it covers, 4 publish a US-number requirement. Six are recorded as not requiring one: Wise, Payoneer, Bluevine and Lili's international flow accept non-US numbers in writing, while Mercury and Airwallex publish no US-number requirement. The other 9 publish nothing either way, which the index records as unknown rather than guessing.

Source: Banking Access Index, phone_2fa dimension, each cell quoting the provider's own help page. Brex, Found, Grasshopper, NorthOne and Revolut Business are in the index with unknown cells.

The accounts built for founders abroad lean away from SMS. Mercury, a fintech business banking platform, offers no SMS option at all. Its 2FA page lists "A time-based code from an authenticator app ... A security key ... A passkey stored on your device." Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC. Airwallex also offers an authenticator app, and Slash and Meow require one. On those accounts the phone number is not the thing that locks you out.

Relay contradicts itself. Its account-opening checklist asks for "A valid U.S. phone number and an email address you check regularly." Its SMS 2FA article answers "Can I use a non-U.S. phone number for 2FA?" with "Yes. Non-U.S. phone numbers are accepted for SMS 2FA verification on Relay." Both pages were live on 2026-10-17. The index records both and resolves neither.

Published VoIP blocks are rarer than the internet suggests. Four providers publish one: Novo, Bluevine, Wells Fargo, and Lili on its standard US application. When the index checked claims that a given bank "blocks Google Voice", every claim not on that list traced back to sellers of SMS numbers rather than to the bank. So the honest status for most providers is "no published policy", which is different from "accepted".

Two providers outside the index matter for most founders. Stripe's phone requirements page asks for "A valid and active US-based phone number" as the business phone. It then adds: "If your Stripe account incorporated a company via Stripe Atlas, the business phone number can be in any country." Support and representative numbers "can be in any country". PayPal's rule binds the account to a country rather than a phone: "you can't change your address to a country that is different from the country you used when you opened your account."

What "non-VoIP" means to the service checking your number

A service that sends a code can look your number up before sending it. Twilio, one of the largest SMS providers, sells exactly that lookup. Its line type documentation (modified 2026-07-24) sorts numbers into types:

• mobile: "generally can receive SMS messages"
• fixedVoip: "associated with a physical device. For example, Comcast or Vonage."
• nonFixedVoip: "obtained online without requiring a physical device. For example, Google Voice or Enflick."
• landline, toll-free and several rarer types

The lookup is available "for phone numbers worldwide". Sellers of verification numbers use "non-VoIP", the phrase the market searches for, to mean a number that comes back as mobile: a line from a real carrier. Twilio's own scheme is wider, since landline and toll-free numbers are not VoIP either, but they generally can't receive texts. Whether a given service rejects the other types is that service's own choice, which is why the table above has a VoIP column.

US numbers from abroad: what the providers publish

Google Voice

Google's own help pages describe the setup without stating who may sign up. One requirement is new: "Users who request a new Google Voice number cannot send or receive messages or calls until they complete identity verification." That check asks for a legal name, a "government-issued identification document" and an address, with manual review taking "up to 3 business days" (Google Voice Help).

The eligibility rule itself appears in a guide by one of Google's volunteer Product Experts, published on Google's help forum and updated 11 April 2026. Google marks such pages as community content that "may not be verified or up-to-date." The guide says: "Consumer Google Voice numbers are issued only to US residents. You cannot sign up for a Google Voice number while outside the USA. Do not try to circumvent this by using a VPN." It also says the claim step needs a "valid 10-digit, 48-state US mobile telephone number" from a major carrier or one of its MVNO brands, and that landline and VoIP numbers are ineligible (community guide).

Two more facts apply to anyone who already has a number. Google's acceptable use policy lets it reclaim a number not used "for a period of 3 months", and the help page gives "45 days when you can get your Voice number back" after the reclaim date (inactivity help). And to a service running the lookup above, a Google Voice number is the textbook nonFixedVoip.

A US prepaid line: Tello and US Mobile

A prepaid mobile line comes back as mobile on a lookup. For someone outside the US, the published constraint is activation.

Tello's help centre answers "Can I activate my eSIM outside the US?" with "No." Activation needs you to be "physically located within the United States", and "The activation will not work if you are abroad." Tello's own page for travellers is built around that order of events: "Activate Tello eSIM before leaving the US." It quotes plans from $5 to $25 a month. It also says texts, including bank one-time passwords, arrive over Wi-Fi while you are outside the US, with Wi-Fi Calling active only once "a US emergency address" is on file. That is the carrier's own claim, not a promise from any bank. Roaming works only "if the line has been used in the USA before."

Keeping a Tello number takes attention. When a monthly plan lapses, "you have 30 days to take action before the number expires," and "We cannot 'bring back' a number once it has expired." Parking costs $3 a month, but a parked line can't "make calls, send texts, or use data" (Tello help).

US Mobile's terms (effective 23 June 2026) are stricter on paper. They describe the customer as located in the United States, say the "primary use of your Service" has to occur in the US unless roaming is purchased, and allow cancellation for "failure to renew your Plan for more than 90 days", after which the number may be reassigned.

We could not read Mint Mobile's pages (every request returned an access error), so it is not covered here.

Read together: Tello's help centre puts activation inside the US, and US Mobile's terms describe service used primarily in the US. We found no US Mobile page on activating its eSIM from abroad, and neither carrier publishes a path for starting a line from Dhaka or Bengaluru.

Number parking: NumberBarn

NumberBarn sells parking for a US number that already exists, such as one left over from a past visa. Its FAQ prices parking at $2.99 a month and adds texting for $1 a month, read in its app rather than the phone's own messages app.

Its help centre is unusually direct about the trade-off. "NumberBarn phone numbers are classified by carriers and regulators as wireline numbers," and some companies "Block wireline numbers entirely for security or anti fraud purposes." A parked number also "cannot receive text messages from: International phone numbers." NumberBarn keeps a compatibility list built from its own testing and customer reports. It lists Chase, Wells Fargo, US Bank, Zelle, Capital One and PayPal among the senders whose codes don't arrive (compatibility list). Those rows are NumberBarn's observations, not the banks' published policies.

Keeping the home number alive: the India lane

The second number is the one founders lose without noticing. We researched India, where the question is asked most. The rules below are Indian; other countries differ.

How long an inactive prepaid number survives

TRAI's consumer regulations say a prepaid connection is not deactivated "for non-usage, for a minimum period of ninety days." After that, if more than ₹20 is on the account, the operator "may deduct an amount not exceeding twenty rupees" to extend the line "by a further period of thirty days", and any activity during that extension restarts a fresh 90 days (TRAI consolidated regulations, regulations 11 and 12). TRAI's Thirteenth Amendment of September 2026 deals with voice-and-SMS vouchers and leaves these clauses alone. A February 2025 TRAI paper on the numbering plan proposed deactivation after 365 days of non-usage. We found no sign it was adopted.

Receiving codes while roaming is not always free

Airtel's terms let a prepaid customer switch on international roaming by "paying a service activation fee of Rs.118, valid for 28 days, which allows unlimited incoming SMS", or by buying a roaming pack. They add that "an active base validity pack is mandatory to use IR services while abroad." Vi says a prepaid customer needs "to recharge with Rs 118 or any other IR pack with service validity to receive incoming sms abroad." Jio's pages did not load for us. A search snippet of its FAQ says incoming texts are free on roaming, which we could not confirm on the page.

The SIM-binding direction for messaging apps

On 28 November 2025 India's Department of Telecommunications directed WhatsApp, Telegram, Signal and five other messaging apps to keep each account "continuously linked to the SIM card ... installed in the device," and to log web sessions out "not later than 6 hours" (PIB release, 1 December 2025). The release adds that the direction "does not affect the cases where the SIM is present in the handset and the user is on roaming." As written, the direction covers those messaging apps, not bank or UPI codes. Its current implementation status could not be confirmed: press reports in April 2026 said the deadline was extended to 31 December 2026 and the web-logout rule softened, and we found no official order confirming either.

UPI on a foreign number: NRE and NRO accounts only

Under an NPCI circular of January 2023, as summarised by the law firm Khaitan & Co, UPI can run on an international mobile number for NRE/NRO accounts in ten countries, including the USA, the UK, the UAE, Singapore and Hong Kong. NPCI's site lists a later circular adding countries, which we could not open. NRE and NRO accounts belong to Indians who are non-resident under India's foreign-exchange law, so this route serves a founder living abroad, not one living in Bengaluru.

Two numbers in one phone

The hardware side is settled. Apple's Dual SIM page (published 17 September 2026) says Dual SIM gives "two active phone numbers", that "iPhone 13 models and later also support Dual SIM with two eSIMs", and that the phone "can use one cellular data network at a time." If the phone supports Wi-Fi Calling, "you can answer incoming calls on your other number." Google's Pixel help says Pixel 7 and later can use two eSIM profiles at once if the carrier supports it.

So the hardware allows a US eSIM and an Indian SIM in one handset. It does not change the activation rule on the US side or the validity clock on the home side.

How risk engines read where you are

A phone number is one location signal. The IP address your login comes from is another, and a travel eSIM can make it point somewhere unexpected.

A measurement study of the travel-eSIM provider Airalo (Jang et al., arXiv 2408.14923, published at IMC 2025) explains why. With home-routed roaming, "assigning the public IP address of a roaming user" is done by the operator that issued the eSIM. In the study, "Five eSIMs roam via Singtel, a Singapore-based MNO," so their public IPs belonged to Singtel wherever the user stood. Another set used breakout points run by third parties, which "often decouples the geographical location of the public internet gateway from the native country of the base operator." That is one provider measured in 24 countries, not a rule for all eSIMs.

Risk engines do compare those countries. Stripe's Radar rules reference uses "Block if :card_country: != :ip_country:" as an example rule, and offers an attribute for anonymous IP addresses. That page is about card payments rather than bank logins, but it shows IP country sitting next to other country signals as an ordinary input.

The same logic runs at the account level. Coinbase's help page says that if it "detects a mismatch between your country setting and provided documents," it may ask for a country change, and that "your account may be suspended until a country change is processed." PayPal, as above, does not let an account change country at all. The pattern across these pages: the account's country is a fact the provider checks, and a phone number or IP from somewhere else is a mismatch it can see.

Frequently asked questions

Do I need a US phone number to open a US business account as a non-resident?

Not for six of the 19 providers in the Banking Access Index. Wise Business, Payoneer, Bluevine and Lili's international flow accept a non-US number in writing; Mercury and Airwallex publish no US-number requirement. Four publish one: Relay at signup, Novo, Bank of America and Wells Fargo. The other nine publish nothing either way. Stripe asks for a US business phone unless the company was formed through Stripe Atlas.

Can I get a Google Voice number from outside the US?

Google's official pages don't state the rule. A Google Product Expert's guide on Google's help forum says consumer numbers are "issued only to US residents" and can't be claimed from outside the US, and that claiming one needs a US mobile number from a major carrier. New numbers now also go through identity verification.

What is a non-VoIP number?

Sellers of verification numbers use the phrase for a number that a lookup service such as Twilio classifies as mobile. Twilio's categories also include landline and toll-free, which are not VoIP either, and its own example of non-fixed VoIP is Google Voice. Whether a service rejects VoIP numbers is that service's policy. Four of the 19 providers in the index publish such a block.

Can I activate a US eSIM from abroad?

Not with Tello, whose help centre says activation "will not work if you are abroad", or under US Mobile's terms, which describe service used primarily in the US. We found no US Mobile page on activating from abroad.

Will my Indian number be deactivated while I'm abroad?

Under TRAI's regulations a prepaid number is protected for at least 90 days of non-usage, then can be extended 30 days at a time for up to ₹20 each. Airtel and Vi charge a ₹118 activation, or a roaming pack, for incoming SMS abroad. Separately, the Department of Telecommunications issued a SIM-binding direction for messaging apps in November 2025; its current implementation status could not be confirmed.

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Key Takeaways

• Of the 19 US business accounts in the Banking Access Index, 4 publish a US-number requirement and 9 publish nothing. Of the other 6, four accept non-US numbers in writing, while Mercury and Airwallex publish no US-number rule. Mercury, Airwallex, Slash and Meow run 2FA through an authenticator app or passkey.
• Four providers publish a VoIP block: Novo, Bluevine, Wells Fargo and Lili's standard US flow. Most "X blocks Google Voice" claims trace to SMS-number sellers, not banks.
• Sellers use "non-VoIP" for a number a lookup service classifies as mobile; Twilio also separates out landline and toll-free. Google Voice is Twilio's own example of non-fixed VoIP.
• Google Voice's residency rule appears only in a volunteer expert's guide. Tello says its eSIM can't be activated outside the US, and US Mobile's terms describe primary use in the US.
• In India, a prepaid number survives 90 days of non-usage before ₹20 extensions apply, and Airtel and Vi charge ₹118 or a pack to receive SMS abroad. A November 2025 SIM-binding direction covers messaging apps; its current status could not be confirmed.
• A travel eSIM's IP can sit in a third country, and risk engines compare IP country with the account's other country signals.

Related Reading

• The Banking Access Index
• How to Open a US Bank Account Remotely as a Non-Resident (2026)
• US Bank Account from India: What Actually Works (2026)
• Mercury vs Wise vs Relay
• Registered Agent vs Virtual Mailbox for a Non-Resident LLC
• US Bank Account from Bangladesh: What Actually Works (2026)

References

All read on 2026-10-17 unless noted.

• Banking Access Index: phone_2fa dimension, 19 providers, each cell quoting the provider's help page
• Mercury: Understanding two-factor authentication: authenticator app, security key, passkey
• Relay: How to open a Relay business account and SMS two-factor authentication: US number at signup; non-US numbers accepted for SMS 2FA
• Stripe: Phone number requirements for US Stripe accounts: US business phone; Atlas carve-out
• PayPal: Can I change the address on my PayPal account to another country?: account country binding
• Twilio Lookup: Line Type Intelligence: line type definitions (modified 2026-07-24)
• Google Voice Help: identity verification and inactivity: ID check for new numbers; 45-day recovery window
• Google Voice community guide: Why can't I get a Google Voice number?: Product Expert guide, community content, updated 2026-04-11
• Tello: Can I activate my eSIM outside the US? and When will my phone number expire?
• US Mobile: Terms of service: effective 2026-06-23
• NumberBarn: FAQs and Verification code compatibility: parking price; wireline classification; vendor-reported compatibility list
• TRAI: Telecom Consumers Protection Regulations, consolidated to the 12th Amendment (PDF): regulations 11 and 12
• Airtel: prepaid terms and conditions (PDF): international roaming activation and base-pack rule
• Vi: International roaming packs: Rs 118 for incoming SMS abroad
• PIB: DoT directions on SIM binding, 1 December 2025
• Khaitan & Co: UPI for NRIs with international mobile numbers (PDF, 18 January 2023): secondary summary of the NPCI circular
• Apple: Using Dual SIM with an eSIM (published 2026-09-17) and Google Pixel: Use dual SIMs
• Jang, Varvello, Lutu, Zaki: Unraveling the Airalo Ecosystem (arXiv 2408.14923): home-routed roaming and breakout locations
• Stripe Radar: Rules reference: ip_country rule attributes
• Coinbase: Why is Coinbase requesting my country ID?: residency mismatch and suspension

Disclosure

Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.

This article contains no affiliate links. Google Voice, Tello, US Mobile and NumberBarn are named with facts from their own pages; none of them pays Global Solo.

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