Meltano IP Addresses

Meltano connects to your data stores from a fixed set of static egress IP addresses. Allow-listing them lets you block all other inbound internet traffic to your database while still letting your pipelines run.

This page is the single source of truth for those addresses. The store setup guides link here instead of repeating them, so use this page whenever you configure a firewall rule, network policy or IP access list.

Egress IP addresses

The Meltano platform has multi-cloud resilience within the United Kingdom and connects to your store from the following addresses:

IP address	CIDR
51.137.148.226	51.137.148.226/32
35.189.66.90	35.189.66.90/32
35.177.0.220	35.177.0.220/32

Allow all three addresses. We may run a given pipeline from any one of them, so allow-listing only a subset may cause intermittent connection failures in the future.

Copy-paste formats

Plain list:

51.137.148.226
35.189.66.90
35.177.0.220

CIDR notation, for allow-lists that expect a network range (ClickHouse Cloud, security groups, users.xml):

51.137.148.226/32
35.189.66.90/32
35.177.0.220/32

Quoted and comma-separated, for SQL statements such as a Snowflake VALUE_LIST:

'51.137.148.226', '35.189.66.90', '35.177.0.220'

Where these are used

The following guides use these addresses. Each shows the syntax for its platform; substitute the values above where the snippets use a placeholder.

• Snowflake Store - network rules and network policies
• Microsoft SQL Server Store - Azure SQL Database server-level firewall rules
• ClickHouse Store - ClickHouse Cloud IP access lists and self-managed users.xml

If a connection stops working

These addresses change rarely, but if a pipeline that previously ran starts failing to connect, check this page first in case the list has changed, then confirm that every address above is present in your allow-list.