Definition: CSP (Campaign Service Provider) is a company that uses The Campaign Registry to register brands and messaging campaigns on behalf of businesses.
You fill out forms with your provider. Your provider, acting as the CSP, turns those forms into brand and campaign records in TCR. From there, the records move toward the carriers through connectivity partners.
Based on TCR's October 2025 guide, the path looks like this:
Each provider adds its own checks and fees on top of TCR. A few examples from provider docs:
Your CSP submits your website, privacy policy, and terms URLs for review. Twilio flags an ISV using its own platform site instead of the customer's site (error 30907). Your site should belong to the business sending the texts. See our guide for any provider.
Related terms: TCR, Brand vetting, Campaign use case
Whatever provider you use, you can check your site for free with our site checker.
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Usually, yes. TCR says CSPs register brands and campaigns for businesses, and most businesses submit their 10DLC details through their messaging provider's console or API.
Not alone. Providers may review your campaign first, but carriers and their vetting partners make the final call. Telnyx, for example, says carrier review typically takes 72 business hours after its own approval.
Yes. For example, Twilio says it assesses the vetting fee once per campaign (error 30922 docs), while Vonage lists a $15 campaign vetting fee per vetting event. Check your own provider's pricing.
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