***

title: phone_number
slug: /reference/python/rest/lookup/phone-number
description: Look up carrier and CNAM information for a phone number.
max-toc-depth: 3
---------------------

For a complete index of all SignalWire documentation pages, fetch https://signalwire.com/docs/llms.txt

Look up carrier and CNAM information for a phone number.

<EndpointSchemaSnippet endpoint="GET /api/relay/rest/lookup/phone_number/{e164_number}" />

## **Response Example**

<EndpointResponseSnippet endpoint="GET /api/relay/rest/lookup/phone_number/{e164_number}" />

## **Example**

```python {9}
from signalwire.rest import RestClient

client = RestClient(
    project="your-project-id",
    token="your-api-token",
    host="your-space.signalwire.com",
)

info = client.lookup.phone_number("+15551234567")
print("Carrier:", info.get("carrier", {}).get("name"))
print("Type:", info.get("carrier", {}).get("type"))
```