US 10DLC & Canadian iGaming Messaging Regulations: A2P Compliance Guide
Published by AVM Networks NOC Engineering • Category: SMS & Messaging • 8 min read
A definitive compliance guide for North American sportsbooks and casinos. Details the CTIA and US tier-1 carrier messaging guidelines, A2P 10DLC brand and campaign registration for age-restricted sports betting, and iGaming Ontario messaging requirements.
A definitive compliance guide for North American sportsbooks and casinos. Details the CTIA and US tier-1 carrier messaging guidelines, A2P 10DLC brand and campaign registration for age-restricted sports betting, and iGaming Ontario messaging requirements.
- US tier-1 carriers require strict A2P 10DLC Brand and Campaign registration for sports betting and casino messaging.
- Promotional gambling SMS is restricted unless sent via approved, age-gated campaigns with explicit prior opt-in consent.
- iGaming Ontario (iGO) enforces strict responsible gaming messaging disclaimers on transactional notifications.
- Voice OTP termination requires STIR/SHAKEN A-Attestation to prevent spam labeling by Verizon, AT&T, and T-Mobile.
1. US 10DLC Registration for Licensed Sports Betting
In the United States, sending A2P SMS without a registered 10DLC (10-Digit Long Code) Brand and Campaign results in immediate carrier blocking and financial penalties. AVM Networks assists licensed US sportsbooks in securing registered 10DLC campaigns with high TPM (Transactions Per Minute) throughput.
Under CTIA standards, gambling traffic falls under specialized, age-gated use-case categories. Operators must hold state regulatory licenses (such as New Jersey DGE, Pennsylvania PGCB, Michigan MGCB, or Ohio Casino Control Commission) to qualify for 10DLC approval.
2. Navigating CTIA Guidelines and SHAFT Content Restrictions
CTIA strictly regulates SHAFT (Sex, Hate, Alcohol, Firearms, Tobacco) content. While gambling is not inherently classified as illegal SHAFT content, carriers enforce zero tolerance for unconsented gambling SMS.
Operators must maintain an ironclad digital audit trail of user opt-in, complete with explicit age verification (21+ in the US, 19+ in Ontario) captured at the time of phone number submission.
3. iGaming Ontario (iGO) Messaging & Responsible Gaming Mandates
In Canada, the regulated market in Ontario operates under the Registrar’s Standards for Internet Gaming. Operators cannot send broad promotional inducements (e.g., "Deposit $100 get $200 free") via unsolicited SMS.
Transactional notifications—such as 2FA login verification, Interac e-Transfer confirmations, and deposit receipts—must include ConnexOntario helpline info and adhere strictly to Canada’s Anti-Spam Legislation (CASL).
4. Voice OTP Fallback Architecture under FCC STIR/SHAKEN
When sending voice OTP fallback calls to US and Canadian players, calls must carry STIR/SHAKEN Level A cryptographic attestation. Unattested calls are frequently marked as "Spam Likely" or blocked by wireless carriers.
AVM Networks signs all voice OTP calls with Level A attestation, ensuring high pickup rates and uninterrupted account onboarding.
AVM US & Canada 10DLC iGaming Messaging Gateway
Fully compliant 10DLC and Toll-Free messaging routes for licensed US and Canadian sportsbooks.
Access US iGaming 10DLC Routes →Authoritative Standards & Regulatory Citations
- CTIA Messaging Principles and Best Practices (CTIA - CTIA Guidelines v2025)
- The Campaign Registry (TCR) Brand and Campaign Registration Standards (The Campaign Registry - TCR Gaming Policy v3)
- Alcohol and Gaming Commission of Ontario (AGCO) Registrar’s Standards for Internet Gaming (AGCO - AGCO Standard 2.05)
Frequently Asked Engineering Questions
Can sportsbooks send promotional SMS to US players?
Yes, provided the sportsbook holds a valid state license (e.g., NJ, PA, MI), registers a dedicated 10DLC gaming campaign, and enforces explicit age-verified opt-in consent.
What happens if a US operator sends gambling SMS on an unregistered route?
US mobile carriers (AT&T, Verizon, T-Mobile) levy non-compliance fines up to $10,000 per violation and permanently blacklist the originating phone number.
Are Toll-Free numbers allowed for US sportsbook 2FA?
Yes. Verified Toll-Free numbers (+1 8XX) can be used for transactional 2FA OTP tokens, provided the Toll-Free verification paperwork is approved.