Verizon, together with AT&T and T‑Mobile, enforces the mandatory 10DLC (10‑digit Long Code) registration regime. Enterprises sending A2P SMS via ten‑digit long codes must complete brand and campaign registration on TCR. Traffic without valid registration will be directly blocked by carriers. Verizon started blocking A2P SMS tunnelled over legacy P2P channels back in 2020. Since February 2025, major US carriers apply immediate, no‑warning blocking for A2P messages originating from unregistered 10DLC numbers.
On content‑compliance side, Verizon applies short‑code‑equivalent control standards to 10DLC services and mandates adherence to CTIA industry best practices. Services shall comply with TCPA requirements, enforce explicit user Opt‑in consent and implement clear Opt‑out mechanisms supporting standard keywords such as STOP and HELP. Carriers adopt zero‑tolerance policies against spam and smishing. Campaigns will be suspended immediately upon detected violations or user complaints. To apply for reinstatement, a full Root‑Cause‑Analysis (RCA) report must be submitted within 48 hours; final reinstatement decision rests with Verizon. Multi‑brand sharing of a single long‑code and snowshoeing circumvention techniques are prohibited. Age‑gated SHAFT‑category content must implement proper age‑restriction controls.
Regarding performance and pricing: Verizon sets throughput limits for 10DLC: 6000 TPM for SMS and 25 TPS for MMS. Carrier surcharges apply to 10DLC traffic. Effective June 1 2025, Verizon increased toll‑free SMS per‑message rate from $0.002 to $0.005, representing a 150 % price increase. Service providers shall leverage carrier‑supplied number‑deactivation files to sanitise contact databases and prevent messaging to disconnected or ported‑out subscribers.
