Phone Number Registration
Ensuring your text messages reach their intended recipients.
Overview
In Daisychain, there are three different types of phone number you can use, and you can select whichever type is best for your organization's needs.
10DLC (which stands for "10 digit long code") numbers, which are "normal" phone number that use a local area code.
Toll Free phone numbers that usually start with 833 or 844.
Short-Code, for five-digit phone numbers, like 54321.
At Daisychain, we handle the basics of phone number registration on behalf of our customers.
Comparing Phone Number Types
When selecting a phone number for messaging, it’s important to consider your use case, audience size, and compliance requirements. Below is a breakdown of the available number types and their key characteristics.
Number Type
Best For
Pros
Cons
Toll-Free
Low-to-medium medium volume messaging
Solid deliverability, faster approvals, easier registration
Slower throughput at the highest volumes as compared to short code.
Local 10DLC
Local outreach
Great deliverability and fast throughput if you have a high "trust score."
Registration is slow and often requires website and privacy policy changes. Nonprofits with low "trust scores" may also face daily message caps, especially to T-Mobile numbers.
Short Code
High-volume campaigns, urgent alerts
Fastest throughput, highest deliverability
Short-code leasing fee, long registration process. Only makes sense with a large list of opted-in supporters.
Toll Free Registration Requirements
Toll-free registrations typically take an average of three business days to be approved, and generally the only requirements are having an organization with a basic website and primary contact info.
10DLC Registrations
10DLC registrations typically take an average of five business days to be approved, assuming all items in the checklist below have been accurately completed before registration.
In order to register your organization or campaign to send text messages, you'll want to make sure to have the following:
Sign-Up Form Requirements (10DLC)
When registering your 10DLC phone number, you'll be asked to submit a URL of a website that contains a sign-up form where people can opt-in to receive mobile messages. To ensure your registration is approved, please make sure your form includes the following three elements:
a non-required field for collecting mobile phone numbers
an unticked checkbox to opt-in to receive text message
disclaimer language modeled after the language below By submitting this form and signing up for text messages, you consent to receive informational and engagement messages from [Organization Name] at the number provided, which may include updates, event reminders, and opportunities to take action. Message and data rates may apply. Message frequency varies. Unsubscribe at any time by replying STOP. Reply HELP for help. Privacy Policy [link] & Terms [link].
Here's an example:
Privacy Policy Info (10DLC)
When registering a 10DLC phone number, a compliant privacy policy must be easily found on your organization's website, with a clear link to this privacy policy in your website's footer. An example complete privacy policy can be found here.
Ensure your policy explicitly states non-sharing of personal data with third parties without consent, except under legal obligations, and provides clear opt-out instructions for communications, especially text messages. It's crucial to avoid language that implies sharing private data for marketing purposes.
Carefully review sections on information sharing to eliminate any inconsistencies or mentions of data sharing that could lead to use case rejection.
A sample statement for your policy could be:
Information Sharing and SMS Communication [Your organization/campaign] upholds stringent privacy standards, guaranteeing that the personal information of our users and members remains confidential. No mobile opt-in will be shared with third parties for marketing purposes.
However, we may share information (1) with vendors, consultants, and other service providers who need access to carry out work on our behalf (and who will not use such information for their own purposes), and (2) if we believe disclosure is required by any applicable law, rule, or regulation or to comply with law enforcement or legal process.
To opt out of SMS messages at any time, simply reply STOP to any of our text messages. You can also opt back in by texting START to the same number.
Terms of Use Info (10DLC)
When registering a 10DLC phone number, you must have compliant Mobile Terms of Use — either as a dedicated page on your website linked in your website's footer, or as a dedicated section of your Privacy Policy. Your Mobile Terms of Use must contain a section that mirrors the text on the opt-in disclaimer. Here's an example:
Mobile Terms of Use
By signing up for text message alerts, you consent to receive informational and engagement messages from [Organization Name] at the number provided, which may include updates, event reminders, and opportunities to take action. Message and data rates may apply. Message frequency varies. Unsubscribe at any time by replying STOP. Reply HELP for help.
10DLC Limits
Carriers place limits on how many texts can be sent through a 10DLC number. These limits vary by carrier and by your type of organization. Daisychain automatically handles these rules so you don’t have to worry about them.
How Limits Work
AT&T controls speed: how many SMS segments or MMS messages can go out each minute.
T-Mobile controls daily volume: how many total SMS/MMS segments can be delivered in a 24-hour window which resets at midnight Pacific time.
Typical Caps
Political Organization (527)
Up to 4,500
Unlimited
Nonprofit (501c3/4)
Up to 4,500
2,000 – 200,000
How Daisychain Handles Limits
Unlike many platforms, Daisychain actively manages these restrictions for you:
Automatic queuing: If you hit T-Mobile’s daily cap, Daisychain automatically holds the extra messages and delivers them the next day when your limit resets.
Rate-aware sending: Campaigns automatically respect the AT&T per-minute throttle, so your messages are paced without you needing to adjust anything.
Alternatives if You’re Hitting Message Limits
Toll-Free Numbers: No T-Mobile daily cap. Great option if you need to guarantee very high volumes.
10DLC Appeal: T-Mobile’s daily message caps (e.g. 2,000 up to 200,000 messages) depend in part on your organization’s Trust Score. If your score is in the lower tier, Daisychain can submit a request for re-evaluation (often via secondary vetting) to improve that score. That process may require submission of official documentation and verification of your organization’s legitimacy. If you're interested in this, send an email to help@daisychain.app
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