---
title: "Assign an Processing Region to a short code."
method: POST
path: "/v3/ShortCodes/{isoCountryCode}/{shortCode}"
tags: ["RoutesV3ShortCode"]
---

# Assign an Processing Region to a short code.

`POST /v3/ShortCodes/{isoCountryCode}/{shortCode}`

## Request

- Base URL: `https://routes.twilio.com`
- URL: `https://routes.twilio.com/v3/ShortCodes/{isoCountryCode}/{shortCode}`
- Auth: HTTP basic

Assign an Processing Region to a short code. Short codes only support a Messaging region; Voice is not supported.

## Path parameters

- `isoCountryCode` string, required
- `shortCode` string, required

## Request body `application/x-www-form-urlencoded`

- object
  - `messagingRegion` string: The Processing Region used for this short code for messaging
  - `friendlyName` string: A human readable description of this resource, up to 64 characters.

## Response `200`

OK

- RoutesV3ShortCode
  - `isoCountryCode` string, nullable: The ISO country code of the short code
  - `shortCode` string, nullable: The short code
  - `url` string, uri, nullable: The absolute URL of the resource.
  - `accountSid` string, nullable: The unique SID identifier of the Account.
  - `friendlyName` string, nullable: A human readable description of the Inbound Processing Region assignment for this short code, up to 64 characters.
  - `messagingRegion` string, nullable: The Inbound Processing Region used for this short code for messaging.
  - `dateCreated` string, date-time, nullable: The date that this short code was assigned an Inbound Processing Region, given in ISO 8601 format.
  - `dateUpdated` string, date-time, nullable: The date that the Inbound Processing Region was updated for this short code, given in ISO 8601 format.

## Changes

- **2026-10-06** (v3) `ffc60b052c7e`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/twilio/apis/routes-v2/changes/v3/ShortCodes/:isoCountryCode/:shortCode/post.md)

---

[API](https://skmtc.dev/twilio/apis/routes-v2.md) - [All operations](https://skmtc.dev/twilio/apis/routes-v2/llms.txt) - [OpenAPI document](https://skmtc.dev/twilio/apis/routes-v2/revisions/ffc60b052c7e?raw)