# 10DLC

10DLC (10-digit long code) is the US system for businesses to send application SMS from regular 10-digit numbers, with registration and throughput rules set by carriers.

## What is 10DLC?

10DLC (10-digit long code) is the US system for businesses to send application SMS from regular 10-digit numbers, with registration and throughput rules set by carriers.

## Impact on verification

Since 10DLC registration, unregistered traffic is filtered aggressively in the US; OTPs from registered senders reach carrier lines reliably, while some VoIP ranges are filtered.

Source: https://smsnitro.com/glossary/10dlc