Radius search for marketing, sales, and AI agents
Every postal code and town inside your radius. Anywhere in the world.
Enter a postal code or town and a radius in miles or kilometers. RingFence returns every postal code and every town inside the circle, nearest first, ready for your ad platform, CRM, spreadsheet, or AI agent.
Countries of postal codes
The US, Canada, Mexico, the UK, 26 EU countries, and more, in one consistent dataset. Expand to a new market without a new vendor.
Countries of towns
Every result includes town names, and towns appear even where postal codes don't exist. Lists that people, not just systems, can use.
One-click export
Download every row or just the filtered ones, or copy the postal codes as a list your ad platform or marketing automation tool accepts.
Built for automation and AI
A REST API for your code and an MCP server for AI agents, both included. Your assistant gets the complete answer, not a guess.
The only radius tool that does all four
Free radius maps stop at the border and leave you copying codes by hand. ZIP code APIs cover one country and charge per lookup. GIS software takes an afternoon. Chatbots answer from memory and miss most of the list. RingFence brings worldwide coverage, towns as well as postal codes, CSV and Excel export, and an API that AI agents can call together in one $99/month subscription.
See it for yourself in the demo → Read the guides on the blog →
Three steps, about thirty seconds
Pick a center
A postal code (02139, SW1A, 10115, M5V), a town ("Springfield, IL", "Lyon, France"), or exact coordinates.
Set the radius
Up to 150 miles or 150 km. The map draws your circle as you type.
Take the list anywhere
Filter and edit the results, then export CSV or Excel, copy the codes, or run the same search from the API.
Who uses radius lists
- Field and event marketers: invite everyone within driving distance, in Marketo, Pardot, Eloqua, HubSpot, or Inflection.
- Performance marketers: geo-target ads to exactly the postal codes you serve.
- Sales leaders: carve territories around every rep, without disputes.
- Franchise teams: put protected areas in writing, town by town.
- Operations: turn a delivery radius into the postal code rules checkout needs.
- Developers and AI agents: automate all of it.
Accurate by design
Great-circle distance to every postal code and town, boundary inclusive. Correct at any latitude, across the 180° meridian, and across borders. Ambiguous places like "Springfield" get a picker, never a silent guess. See coverage by country →
Frequently asked questions
What is RingFence?
RingFence is a radius search service that returns every postal code and town within a chosen distance of a postal code, town, or coordinates, worldwide. Results export to CSV and Excel, and the same search is available through a REST API and an MCP server for AI agents.
Which countries does RingFence cover?
Postal codes in 120+ countries, including the US, Canada, Mexico, the UK, and 26 of 27 EU member states, plus towns and cities in 250 countries and territories.
How much does RingFence cost?
$99 per month, including the web app, CSV and Excel export, the REST API, and the MCP server, with no per-search charges.
Can AI agents use RingFence?
Yes. RingFence runs a remote MCP server with radius_search and resolve_location tools, so agents can return complete, exact radius lists instead of estimates.