The lowest listed rate is $0.004 a segment.
Telnyx and Bandwidth list $0.004 per outbound segment for US 10DLC. ClickSend's entry tier is $0.0285. Carrier fees ride on top of every one.
Compare all eightEight providers, every number sourced.

| Provider | Outbound SMS | Inbound SMS | Outbound MMS | Carrier fee AT&T / T-Mobile / Verizon | Source, checked |
|---|---|---|---|---|---|
| Telnyx | $0.004 | $0.004 | $0.015 | $0.003 / $0.003 / $0.0045 | telnyx.com, 2026-10-16 |
| Twilio | $0.0083 | $0.0083 | $0.022 | $0.0035 / $0.0045 / $0.005 | twilio.com, 2026-10-16 |
| Plivo | $0.0077 | $0.0077 | $0.018 | $0.0035 / $0.0045 / $0.005 | plivo.com, 2026-10-16 |
| Bandwidth | $0.004 | checking | $0.015 | checking / checking / checking | bandwidth.com, 2026-10-16 |
| Vonage | $0.0086 | $0.00691 | checking | $0.0035 / $0.0045 / $0.005 | vonage.com, 2026-10-16 |
| SignalWire | $0.00415 | $0.00415 | $0.02 | $0.0035 / $0.0045 / $0.005 | signalwire.com, 2026-10-16 |
| Sinch | $0.0078 | $0.0078 | $0.02 | checking / checking / checking | sinch.com, 2026-10-16 |
| ClickSend Entry tier; cheaper with larger top-ups | $0.0285 | $0 | $0.0369 | checking / checking / checking | clicksend.com, 2026-10-16 |
“Checking” means we could not read that number on the provider's own page yet. We never estimate. List prices only; volume tiers and contracts are not shown.

Ten reasons campaigns get rejected.

- ConsentOpt-in flow can't be verified
- ConsentCall-to-action missing required disclosures
- WebsiteWebsite doesn't match the business or use case
- WebsitePrivacy policy or terms missing or inaccessible
- MessagesSample messages don't match the stated use case
- MessagesCampaign description is vague or incomplete
- Use caseWrong use case selected
- BrandBrand details don't match tax records (EIN mismatch)
- BrandDBA / brand name inconsistency
- ContentProhibited or high-risk content
Approval takes weeks.
First, brand vetting: from an hour to seven days, per Convey.
Then carrier review of the campaign, per Convey. Aircall sees 5–30 business days end to end.
After a rejection, fixes add another review.

Fees along the way: $4.50 brand registration, $15 per campaign review, then $10 a month (or $1.50 for low volume), as listed by Telnyx. All fees · Timeline sources
- Independent
- Re-checked daily
- Never estimated
I build production SMS booking agents. They answer customer texts, text back missed calls, pick up website quote forms, and book jobs straight into the business's CRM, and a human can take over any conversation from their phone. One of them runs every day for my own detailing business. Getting them live meant digging through SMS pricing pages and 10DLC registration rules by hand. TextStack is that research, sourced and kept current, so the next builder doesn't have to.
Every price links to the page it came from, with the date it was last read. Anything we can't verify says so. How it's checked
Know when a price moves.
One email a week: what changed in SMS pricing, new rejection patterns, one teardown.