---
title: Block traffic by geographical location
description: Block traffic based on geographic location.
image: https://developers.cloudflare.com/core-services-preview.png
---

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# Block traffic by geographical location

This example [custom rule](https://developers.cloudflare.com/waf/custom-rules/create-dashboard/) blocks requests by autonomous system number (ASN), continent, or country of origin.

* **When incoming requests match**:

| Field     | Operator | Value        | Logic |
| --------- | -------- | ------------ | ----- |
| AS Num    | equals   | 131279       | Or    |
| Continent | equals   | Asia         | Or    |
| Country   | equals   | Korea, North |       |  
If you are using the expression editor:  
`(ip.src.asnum eq 131279) or (ip.src.continent eq "AS") or (ip.src.country eq "KP")`
* **Then take action**: _Block_

## Other resources

* [Use case: Block traffic from specific countries](https://developers.cloudflare.com/waf/custom-rules/use-cases/block-traffic-from-specific-countries/)
* [Use case: Allow traffic from specific countries only](https://developers.cloudflare.com/waf/custom-rules/use-cases/allow-traffic-from-specific-countries/)
* [Fields reference: Geolocation](https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/?field-category=Geolocation)

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