What is A2P 10DLC registration? It is the The Campaign Registry (TCR) filing that authorizes Application-to-Person (A2P) SMS from a 10-Digit Long Code (10DLC) in the United States. The record has two parts: brand identity and campaign program details.
A2P is the traffic class. 10DLC is the number type. Registration is the registry event that binds them.
A2P Versus P2P
Application-to-Person traffic originates from software. Appointment systems, ecommerce platforms, banks, clinics, and CRMs send A2P.
Person-to-person (P2P) traffic originates from human handsets in a conversation pattern. Carriers score volume, burst rate, and identical copy when they decide a stream is A2P wearing a P2P path.
A2P 10DLC registration exists because carriers will not treat high-volume identical business texts as casual conversation.
Why the Phrase Includes “Required”
Searchers often type “a2p 10dlc registration required.” CSP consoles surface that banner when a US 10-digit sender has no approved brand and campaign. The banner is not a federal form name. It is the carrier rule expressed in product copy.
US A2P on 10-digit longs codes requires the filing. Short codes and toll-free numbers use other registration tracks. Canada is not this track.
What Gets Filed
The brand file proves who the sender is. Legal name, Employer Identification Number (EIN) or accepted sole-proprietor identifier, website, and contacts populate that file. TCR returns a trust score from 0 to 100.
The campaign file proves what the sender is doing. Use case, 40-plus-character description, two samples, opt-in method, STOP and HELP language, and policy URLs populate that file.
Both files must read as one story. A healthcare reminder campaign attached to a brand whose site sells crypto tokens is a rejection pattern.
What “A2P 10DLC Registration Required” Means in a Console
Twilio, Bandwidth, Vonage, RingCentral, Telnyx, Zoom Phone, Amazon End User Messaging, and similar CSPs display a required-registration state when:
- The number is a US 10DLC
- The traffic class is A2P
- Brand status is missing, pending, or rejected
- Campaign status is missing, pending, or rejected
The fix is not a settings toggle. The fix is a complete, aligned filing.
Trust Score Role
TCR scores the brand after the identity file lands. Scores under 50 often enter manual review for 7–10 business days. Higher bands can unlock higher throughput, with top-band programs associated with up to 4,500 messages per minute per campaign. Carriers control the actual cap.
A preflight simulator can estimate score drivers. It does not replace TCR’s score.
Consent Still Sits Outside the Registry
Telephone Consumer Protection Act (TCPA) consent is independent. Marketing A2P needs express written consent. Transactional programs still need a documented opt-in story that matches the campaign.
Statutory TCPA exposure is $500 per message, or $1,500 for willful violations. Consent records should be kept four or more years.
FAQ
What is A2P 10DLC registration required for US messaging?
It is required for business A2P SMS from US 10-digit long codes. Carriers use TCR records to decide whether that traffic is registered.
What is US A2P 10DLC registration?
The same filing, with the country named. TCR 10DLC is a United States carrier construct.
Is A2P 10DLC registration the same as 10DLC registration?
Yes. The A2P prefix names the traffic class. The work is still brand plus campaign.
What is A2P 10DLC registration required meaning in Twilio or similar portals?
The number cannot send registered A2P until brand and campaign records exist and show an approved status.
Disclaimer
Mytcrplus.com provides tools and templates to support compliance efforts but does not provide legal advice. Compliance requirements vary by industry, jurisdiction, and use case. You are responsible for ensuring your messaging practices comply with applicable laws, obtaining appropriate consent from recipients, and monitoring ongoing compliance as regulations evolve. Consult legal counsel if you are unclear about your specific compliance situation.
MYTCRPLUS.com is not affiliated with The Campaign Registry. TCR and The Campaign Registry are trademarks owned by The Campaign Registry. The use of TCR is nominative use only.