---
title: "What is the difference between a short code and a long code?"
description: "A short code is a leased 5- or 6-digit number for high-volume US texting; a long code is a 10-digit number registered as 10DLC. Compare launch time and use."
canonical: "https://omnichannels.ai/answers/short-code-vs-long-code/"
language: "en"
updated: "2026-11-06"
publisher: "BroadNet Technologies"
brand: "OmniChannels.ai"
---

# What is the difference between a short code and a long code?

Canonical: https://omnichannels.ai/answers/short-code-vs-long-code/
Language: en
Publisher: OmniChannels.ai by BroadNet Technologies

**Short answer:** A short code is a leased five- or six-digit number approved by US carriers for high-volume, time-critical texting, while a long code is an ordinary 10-digit local number registered through 10DLC for moderate, conversational traffic. Short codes take longest to launch; long codes feel personal. Toll-free numbers sit between the two.

## How do they compare?

| Point | Short code | Long code (10DLC) | Toll-free |
|---|---|---|---|
| Format | 5 or 6 digits | 10-digit local | 10-digit toll-free |
| Registration | Lease, then carrier program approval | Brand and campaign registration | Text enablement and verification |
| Launch time | Longest | Shorter; 7 to 14 business days in our data | Usually shorter than short code |
| Look and feel | Memorable, impersonal | Local, personal | National, business-like |
| Best for | Large, time-critical programs | Moderate, conversational traffic | Support and mixed use |

## What should you know about short codes?

- Leases run 3, 6 or 12 months and fees are non-refundable if carriers do not activate the code.
- Each carrier decides whether to support the program.
- CTIA audits live programs against its guidelines.

## Which should you choose?

Pick a short code for large programs you can plan weeks ahead, 10DLC for conversational and moderate volume, and toll-free for a business-line number without a local feel. Outside the US most markets use alphanumeric sender IDs instead.

## Official sources

- [U.S. Short Code Registry: Short codes 101](https://www.usshortcodes.com/about-short-codes/short-codes-101)
- [CTIA Short Code Monitoring Handbook (v1.9)](https://api.ctia.org/wp-content/uploads/2024/01/CTIA-Short-Code-Monitoring-Handbook-v1.9-FINAL.pdf)
- [The Campaign Registry: resources](https://www.campaignregistry.com/resources/)

## Related questions

- https://omnichannels.ai/answers/what-is-10dlc/
- https://omnichannels.ai/answers/alphanumeric-sender-id-usa/
- https://omnichannels.ai/answers/what-is-sender-id/
- https://omnichannels.ai/answers/transactional-vs-promotional-sms/

Updated: 2026-11-06