A client signs on Monday. They want to text their lead list by Friday. You know the campaign will convert — opted-in lists reply at rates most channels only dream about. And then you hit the wall everyone forgets to mention on the sales call: A2P 10DLC registration.
Handled right, that registration clears in a day, sometimes hours. Handled wrong — or on a platform where "wrong" means a manual onboarding ticket that sits in someone's queue — it turns into a three-week limbo where your client's messages either don't send or get silently filtered by carriers. That's the difference between a client who's live and happy in week one and one who's asking for a refund before you've earned a dollar.
Full disclosure: I work for Ready, and our whole pitch to agencies is self-serve 10DLC that mostly clears same-day. But the reasons registrations get stuck are the same everywhere, and knowing them is worth more than any vendor's marketing. Let's walk the actual mechanics.
What 10DLC registration actually is
A2P 10DLC is the framework carriers use to vet application-to-person traffic on standard 10-digit long codes. Two pieces:
- Brand registration — you tell the carrier ecosystem who's sending. This is the legal entity: name, EIN, address, website, contact. Runs roughly ~$10/mo in carrier fees.
- Campaign registration — you tell them what kind of messages this brand sends: use case (marketing, mixed, 2FA, customer care), sample message content, opt-in flow. Roughly ~$20/mo per campaign.
Unregistered traffic on a long code gets filtered. Not "delivered slower" — filtered. Your client's blast leaves your platform, the carrier drops it, and nobody sees a bounce. That silent failure is why registration isn't optional busywork; it's the thing standing between a sent message and a delivered one.
If you're weighing 10DLC against the alternatives, the two other routes both cost you speed: toll-free verification takes weeks and caps your throughput, and a short code runs $1,000/month before you send a single text. For an agency onboarding a new client this week, 10DLC is almost always the right call.
The three things that actually determine approval speed
Approval usually lands in 1–3 days. What decides whether you're on the fast end or the slow one comes down to three inputs — and all three are things you control at submission.
1. EIN accuracy — the single biggest rejection cause
The brand's legal name, EIN, and registered address have to match the IRS record exactly. Not "close enough." "Acme Marketing LLC" when the EIN is filed under "Acme Marketing Group LLC" is a rejection. A DBA where the vetting system expects the registered entity is a rejection.
The fix is boring and it works: before you submit anything, get the client's CP-575 or their most recent 147C letter from the IRS — that's the document with the exact registered name. Type it character-for-character. This one habit eliminates the most common re-submit loop, and re-submits are where days evaporate.
2. Use-case fit — does the campaign match what you'll send?
The campaign registration asks what kind of messages this is for and wants sample content plus a description of your opt-in flow. Mismatches get flagged:
- Registering a "customer care" use case, then sending promotional blasts
- Sample messages with no business identifier or no opt-out language
- Describing an opt-in you can't actually demonstrate
Write samples that look exactly like the real texts, including the brand name and "Reply STOP to opt out." Describe the real opt-in — web form checkbox, keyword, point-of-sale. If the client collects consent at a donation form or checkout, the checkbox language matters, because vetters read it.
3. Whether you need brand vetting at all
Standard 10DLC ($10/mo brand + $20/mo campaign) is all most senders need, and it's the fast path. External brand vetting ($40 Standard / $100 Enhanced, one-time) raises your trust score and daily throughput limits — but it also adds a step and a wait. Only reach for it when the client's volume demands the higher throughput cap. For a new client texting a normal lead list this week, skip it. You can always add it later once volume justifies it.
Same-day vs the three-week trap: where the time actually goes
Here's the honest breakdown of where onboarding time comes from, and which parts are avoidable.
| Step | Fast path | The trap |
|---|---|---|
| Collecting client legal info | 15 min, upfront checklist | Chased across three emails over a week |
| Brand submission | Self-serve, submitted same day | Support ticket, queued behind others |
| EIN mismatch re-submit | Avoided (verified against 147C) | +2–5 days per re-submit loop |
| Campaign use-case review | 1–3 days carrier review | +days if samples don't match use case |
| Optional brand vetting | Skipped unless needed | Added by default, +days of waiting |
| Going live | Same-day to ~72 hrs | Two to three weeks |
Notice that almost none of the "three-week" time is carrier review — it's human latency: chasing documents, re-submitting after avoidable rejections, and platforms where registration is a manual back-office ticket instead of something you fill out yourself. On Ready, brand and campaign registration are handled in-app, self-serve, which removes the queue and puts the timeline back in your hands. Most approvals land same-day.
The agency onboarding checklist that keeps you in the fast lane
Send this to the client the moment they sign, before you touch the platform:
- Exact legal entity name and EIN — from their CP-575 or 147C letter, not memory
- Registered business address — the one on file with the IRS
- Business website — live, with a visible privacy policy
- Authorized contact — name, email, phone
- Sample messages — 2–3 real examples, with brand name and STOP language
- Opt-in description — exactly how they collect consent
- Expected monthly volume — so you know whether vetting is worth it
If you get all seven back on day one, you can submit on day one. That's the whole trick. The clients who go live Friday are the ones whose agency asked for the right seven things on Monday.
One brand, one campaign — or fifty?
If you're onboarding one client, this is simple: one brand, one campaign. Where it gets interesting is at agency scale. When you're running dozens of GHL sub-accounts, the instinct is to register a fresh brand and campaign for each — and sometimes that's right, sometimes it backfires and you should consolidate. Consolidating under a shared brand can speed things up, but it blurs the line between clients and can drag one client's reputation into another's deliverability. That's its own decision worth making deliberately, not by default.
For a single new client who needs to text this week, keep it isolated: their brand, their campaign, their EIN, their opt-in. Clean and fast.
Getting live fast doesn't mean skipping the guardrails
Speed is the point of this post, but it's not the only thing that matters. A registration that clears in a day is worthless if the first blast trips filters or texts a number that shouldn't have been texted.
Two things to bake in from the start:
- Don't put a link in the very first message. Carriers reward a two-message warmup and penalize a cold URL. Your client's inaugural blast is the worst place to learn this.
- Scrub the list before import, not after. One text to a TCPA-litigator number can cost $500–$1,500, and scrubbing after you've already sent is too late — the violation already happened. A standalone scrub runs $0.005 per contact. On a 5,000-name list that's $25 to screen the numbers most likely to sue.
Ready runs automatic STOP handling, quiet-hours enforcement, and consent attestation on top of registration, so the compliance floor is there by default. It doesn't make anyone lawsuit-proof — consent is always the sender's responsibility — but it removes the easy mistakes.
The practical takeaway
Same-day 10DLC isn't a feature you buy; it's a process you don't fumble. The registration itself is fast. What makes onboarding drag is chased paperwork, EIN mismatches, sample messages that don't match the use case, and platforms where registration is a support ticket instead of a form you can fill out yourself.
Ask the client for the right seven things on day one. Verify the EIN against their 147C letter. Write samples that mirror the real texts. Skip brand vetting unless volume demands it. Do that, and Friday is realistic.
If you want to see the registration flow before you commit a client to it, you can spin up an account and walk through it yourself — Ready starts with 2,500 free credits, no card required, and the product and pricing details are here. Kick the tires on your own EIN first; it's the cheapest way to learn where the friction lives before a client is watching.