---
title: "Check multiple numbers against the CRTC DNCL"
method: POST
path: "/v1/compliance/dncl/batch-check"
tags: ["Compliance / DNCL"]
---

# Check multiple numbers against the CRTC DNCL

`POST /v1/compliance/dncl/batch-check`

## Request

- Base URL: `https://api.honkio.ca`
- URL: `https://api.honkio.ca/v1/compliance/dncl/batch-check`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

CRTC DNCL checking is coming soon: every call currently answers 501 DNCL_COMING_SOON.

Requires `compliance:r`.

## Request body

- object
  - `phone_numbers` string[], required

## Response `200`

Each number's DNCL status, once DNCL checking is enabled.

- object: Each number's DNCL status, once DNCL checking is enabled.
  - `results` object[], required
    - `phoneNumber` string, required
    - `isRegistered` boolean, required
    - `checkedAt` string, date-time, required
    - `fromCache` boolean, required

## Other responses

- `401`: Missing, invalid, revoked or expired API key.
- `402`: The account has no balance, or a LIVE key was used before the first top-up.
- `403`: The API key lacks the permission this operation requires, or the account is suspended or closed.
- `422`: VALIDATION_ERROR: the request failed validation; details names the fields.
- `429`: Rate limit reached: 100 requests per second per account, or a route-specific limit (Retry-After set where one applies).
- `500`: Unexpected server error.
- `501`: DNCL_COMING_SOON: DNCL checking is not enabled yet.

---

[API](https://skmtc.dev/honkio/apis/honkio-api.md) · [All operations](https://skmtc.dev/honkio/apis/honkio-api/llms.txt) · [OpenAPI document](https://skmtc.dev/honkio/apis/honkio-api/revisions/ce4ed3fe9691?raw)