---
title: "Country porting requirements"
method: GET
path: "/v1/phone-numbers/port-in/requirements"
tags: ["Phone Numbers"]
---

# Country porting requirements

`GET /v1/phone-numbers/port-in/requirements`

The country-specific information a port-in needs BEYOND the LOA,
invoice, and account/address details, such as an ID copy, proof of
address, a tax id, or a porting code. Call it after the portability
check (which returns each number's `countryCode` and
`phoneNumberType`), render the fields, and pass the collected values as
the create request's `requirements`. US/CA return an empty list.

## Query parameters

- `country` string, required
- `numberType` 'local' | 'mobile' | 'national' | 'toll_free'

## Response `200`

Requirement fields for the country/type combination.

- object
  - `country` string
  - `numberType` string
  - `supported` boolean — false when the combination includes a step that can't be completed through the API (e.g. an in-person identity verification). Porting it needs support.
  - `fields` object[]
    - `requirementId` string — Pass back as requirements[].requirementTypeId.
    - `label` string
    - `kind` 'text' | 'date' | 'address' | 'file' | 'action' — text/date take a string value; file takes a documentId from the documents endpoint; address is satisfied automatically from the end-user service address.
    - `description` string
    - `example` string
    - `acceptableValues` string[] — When present, the value must be one of these.

## Other responses

- `400` — Invalid request
- `401` — Unauthorized
- `422` — Country not supported for port-in

## Changes

- **2026-09-16** `3e6ddf2a99ea` — 1 info
  - added the optional property `details/budgetScope` to the response with the `400` status
- **2026-09-15** `0dba7d004d75` — 2 info
  - added the optional property `details/quotaExhausted` to the response with the `400` status
  - added the optional property `details/quotaScope` to the response with the `400` status

[Change history](https://skmtc.dev/zernio/apis/zernio-api/changes/v1/phone-numbers/port-in/requirements/get.md)

---

[API](https://skmtc.dev/zernio/apis/zernio-api.md) · [All operations](https://skmtc.dev/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc.dev/zernio/apis/zernio-api/revisions/fdaf9a9fb1a7?raw)