The status field has not moved in nine days. The product is live, the onboarding flow is wired to text a verification code to every new US signup, and the messaging dashboard still shows the same line: brand registration pending. When support finally replies, the checklist they send opens with three items: legal business name, tax ID, business address.
The founder reading that reply runs a one-person SaaS from an apartment in Cebu. There is no legal business name. There is no tax ID. Until both exist, the product cannot text its first American customer.
This is the standard first collision between overseas builders and A2P 10DLC, the framework US carriers now use for application-to-person traffic on ordinary 10-digit numbers.
Anyone whose app sends OTP codes, appointment reminders, shipping alerts, or AI-generated usage summaries to US phones goes through it.
The part that surprises founders outside the United States is not the paperwork itself. It is that the paperwork assumes you are a registered business somewhere, and works most smoothly when you are one in the US.
What 10DLC registration requirements actually cover?
Registration happens in two layers. The brand layer establishes who is sending: your legal business name, your tax ID, your business address, website, industry vertical, and a contact. The campaign layer establishes what you are sending: the use case, sample messages, how people opt in, and how they opt out.
Both are filed through The Campaign Registry, the central database that sits between messaging platforms such as Twilio and the US carriers.
The registry’s premise is that brands are verified before they are allowed to send, so that both the who and the what of every campaign are traceable.
The brand layer is where the tax ID lives. For a US company, that means an EIN, the Employer Identification Number issued by the IRS.
Twilio’s registration guidance asks for the legal business name exactly as registered with the EIN, the version printed on the CP 575 confirmation letter, not the variant that may appear on a W-9. Mismatched name and tax ID pairings are a common reason a brand fails verification.
Freshly issued EINs add their own delay: a new number can take 30 to 90 days to propagate into the databases the registry checks, so an early submission can fail and need resubmitting weeks later.
The sole proprietor tier is narrower than most founders expect
There is an individual lane. Sole proprietor brand registration exists for hobbyists, students, and very small senders who have no EIN at all. On paper it looks like the escape hatch for a founder with no company. In practice it is fenced in from every side:
- Only valid US and Canadian addresses are accepted, which excludes an overseas founder outright.
- Anyone who holds an EIN is ineligible, so it cannot be combined with a registered business identity.
- Each sole proprietor brand is limited to one campaign and one phone number, with identity confirmed by a one-time passcode.
- Throughput is capped at roughly one message per second, with carrier ceilings such as 1,000 message segments per day toward T-Mobile and 15 messages per minute toward AT&T.
Even a modest verification-code flow outgrows those ceilings quickly, and a founder in Manila or Bengaluru never gets to try, because the address rule closes the lane first.
For anyone building outside North America, the individual tier is effectively not on the menu. The standard tiers are the real path, and the standard tiers ask for a registered entity with a tax ID.
What vetting looks like from the carrier side?
Once submitted, brand details are checked against government and third-party records, and standard brands are scored during vetting, with the score influencing how much daily throughput carriers grant.
The registry model replaced an era when carriers could not tell a legitimate appointment reminder from spam, so the checks are deliberately unforgiving about identity.
Skipping registration is not a loophole either: unregistered 10DLC traffic draws surcharges from US carriers on top of normal message pricing, and gets filtered far more aggressively, which in practice means much of it never arrives.
The direct costs of doing it properly are small compared to the cost of not doing it. Twilio’s published figures put one-time brand registration at $4 for low-volume standard brands, campaign vetting at a one-time $15, and recurring campaign fees at roughly $2 to $10 per month depending on use case.
The expensive part of 10DLC was never the fees. It is the weeks a launch sits in pending review because the sender had no verifiable business identity to register.
Where a US entity fits for a founder outside the US?
Standard brand registration is not restricted to American companies. Platforms accept home-country registration numbers, a UK company number or an Indian corporate identity number among them, so a founder who already operates a registered company at home can often register with that identity. The wall is highest for the solo builder with no entity anywhere: no legal name, no tax ID, a product aimed squarely at US phones.
For that founder the sequence is fixed. Form a company, obtain its tax ID, then register the brand. Many still choose a US LLC, because the whole 10DLC flow is built around US identifiers: an EIN fits every form without translation, a US business address matches what carriers and platforms expect to see, and the same two data points get reused later for payment processing and platform verification checks.
Wyoming is a common pick among remote founders for its low ongoing maintenance and the absence of state income tax. Non-residents can own a US LLC without a visa or a Social Security number, and the IRS issues EINs to foreign-owned companies through a paper SS-4 application filed by fax or mail, since the online route requires a taxpayer number the founder does not have.
Formation services that work specifically with non-resident founders, CORPBOLT among them, bundle the pieces brand registration asks for: a Wyoming LLC, a registered agent, a usable US business address, and the EIN filing handled without a Social Security number. However the entity gets formed, keep the CP 575 letter that closes out the EIN process; it becomes the source document for the brand form.
Timing deserves respect here. Because of the propagation lag on new EINs, the realistic path from no entity to approved brand is measured in weeks, not days.
Founders planning a US launch with SMS in the critical path should start the formation clock well before the marketing calendar needs messages flowing.
A pre-submission checklist
Before the brand form goes in, five details prevent most of the avoidable rejections:
- Enter the legal name exactly as printed on the CP 575 EIN confirmation letter, not a trade name, a domain name, or a shortened variant.
- Use one business address consistently across the registration, the website footer, and payment accounts, so records agree wherever vetting looks.
- Have a live website with a privacy policy that describes SMS use, and be ready to show how subscribers opt in, since campaign registration asks for both consent mechanics and sample messages.
- Write sample messages that match real production traffic, opt-out wording included.
- If the EIN is only weeks old, expect a possible validation failure and plan a resubmission rather than treating the first rejection as final.
The registration wall reads as bureaucracy from the outside, but it is the same mechanism that keeps deliverability high for every sender who gets through it.
Carriers accept your traffic because they know exactly who you are. For a founder abroad, the entity and the EIN are not paperwork for its own sake. They are the admission ticket to texting the US market at all.
