Sending SMS to Canada: Do You Need A2P 10DLC? (2026)

Quick Answer

A2P 10DLC is a US regulation. Canadian carriers do not use the 10DLC framework. However, Rogers, Bell, and Telus aggressively filter unregistered A2P traffic — developers report significantly lower delivery rates to Canada when using unregistered numbers.

Quick Decision Table:

Scenario	A2P Registration Required?
Canadian number → US recipients	Required
Canadian number → Canadian recipients	Recommended
US number → US recipients	Required
US number → Canadian recipients	Recommended
Toll-free number (1-8xx) → US or Canada	Different verification process

Our recommendation:

• Use Pingram, which manages your number and registrations so you can focus on shipping your product;

• Do-it-yourself:

  1. Get a 10DLC number in Canada or US (not toll-free for reasons explained below),
  2. Ensure CASL compliance (Canada’s Anti-Spam Legislation), and
  3. Perform A2P registration — required for US, recommended for Canada.

Helpline

Pingram operates an A2P Helpline, providing free consultation to developers and technology startups on SMS compliance — including cross-border Canada/US messaging.

Does A2P 10DLC Apply to Canada?

Theoretically, no. Technically, yes.

• A2P 10DLC is required for sending to US numbers.
• A2P 10DLC is not required, but recommended because some carriers in Canada treat unregistered traffic as risky and filter it out.

So in a nutshell, yes.

Your Options for Sending SMS to Canada

1. 10DLC number in Canada or US + A2P 10DLC registration (recommended)
2. Toll-free number (1-8xx)
3. Short code (5-6 digit numbers)

Why not short code or toll-free?

Short codes (the fancy 5-6 digit numbers) are only good fits for Enterprise use cases. They require:

• $500–$1,500/month
• 8-12 week approval process
• More scrutiny and revoked easily for violations

Toll-free numbers (the 1-8xx numbers) are not the best either:

• They have a different approval process which is as difficult as A2P
• Per message costs are higher
• Carriers treat them as riskier and filter them out more aggressively

So for majority of software teams building on SMS, a 10DLC number with A2P registration is the practical choice.

How long does it take to get a 10DLC number?

With Pingram, 3-5 days. Our team of experts handles the entire process for you and avoids common rejection scenarios.

Without Pingram, 2-4 weeks. This is due to slow review and rejection cycles and providers trying to sell their professional services to you.

CASL: Canada’s Anti-Spam Legislation

CASL is the law you actually need to worry about when sending SMS to Canadian numbers. Violations carry penalties of up to $1 million per violation for individuals and $10 million for businesses.

What CASL Requires

1. Prior consent before sending any commercial electronic message (CEM)
2. Sender identification in every message
3. Unsubscribe mechanism that works

Express vs. Implied Consent

Express consent — the recipient explicitly opted in to receive your SMS:

• Written or digital permission (checkbox, form submission)
• Keyword opt-in via text (e.g., “Text YES to subscribe”)
• Does not expire (but can be revoked at any time)

Implied consent — exists through an existing business relationship:

• Applies for 2 years after the last transaction
• Resets with each new transaction
• Riskier to rely on — you must prove the relationship existed

For application notifications (2FA, account alerts, order updates), consent is typically established when the user creates an account and provides their phone number. Make sure your Terms of Service or Privacy Policy explicitly covers SMS communication.

Why Canadian Carriers Block Your Messages

Even with technically correct registration, messages can still be filtered. Canadian carriers use several signals:

Content Filtering

• URL shorteners (bit.ly, tinyurl) are flagged as spam indicators
• Excessive links in a single message trigger filtering
• Promotional language (“FREE”, “LIMITED TIME”, “CLICK NOW”) reduces delivery rates
• Identical messages sent to many recipients are detected and throttled

Volume-Based Filtering

• Sudden spikes in message volume from a number trigger automatic blocking
• Consistent, predictable sending patterns are treated more favorably
• New numbers have lower initial trust — ramp up gradually

Opt-Out Rate Monitoring

• High opt-out rates (STOP replies) signal to carriers that recipients don’t want your messages
• Carriers share opt-out data and will reduce your delivery priority
• If your opt-out rate exceeds carrier thresholds, your number may be permanently blocked

Key Takeaways

1. A2P 10DLC does not apply to Canada, but Canadian carriers aggressively block unregistered A2P traffic
2. 10DLC numbers are the simplest path for most developers — cheap and better deliverability
3. CASL compliance is mandatory — consent, identification, and unsubscribe mechanisms are legally required with penalties up to $10M
4. Content and volume matter — even registered numbers get filtered if you trigger carrier spam detection

Need help with cross-border SMS? Get started with Pingram or book a consultation with our compliance team.