Firewalls and IP Restrictions#

If you are using MySQL, PostgreSQL, or SQL Server, these three specific integrations will use a static IP.

In all other cases, Zapier does not have one static range of IP addresses. Instead, we use ‚ÄčAmazon (AWS)'s US-EAST-1 region, spinning up instances as needed. This means there could be millions of IPs to whitelist, which oftentimes becomes impractical.

You can find Amazon's list of current ranges (subject to change) here. We might be connecting from any of the us-east-1 ranges listed on this page:

How do these IPs translate into ranges?#

An IP like this: is listed in "CIDR" notation, which is shorthand for a block of IPs. If your firewall or filter does not support CIDR notation, you can convert this into an actual range of IPs by using an online CIDR calculator.

To calculate the range, type your IP block in:

The resulting calculation will give you a Start IP and an End IP:

In most cases, whitelisting all of us-east-1 is not going to be the right solution. You'll need to open your instance to the wider internet.

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