---
title: "ASN information for IP addresses"
slug: "get-asn-information-for-a-list-of-ipv4-addresses"
description: "Silent Push allows you to obtain ASN information for a list of IPv4 addresses."
tags: ["IP queries", "IPv4"]
updated: 2025-12-31T16:58:00Z
published: 2025-12-31T16:58:00Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.silentpush.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ASN information for IP addresses

An ASN is a unique identifier assigned by the Internet Assigned Numbers Authority (IANA) to a network operator that controls a block of IP addresses.

Threat actors often use multiple IP addresses and domains to carry out their attacks. ASN information enables security analysts to group these disparate elements into larger networks or organizations, thereby helping to identify patterns of behavior and attribute attacks to specific threat actors or groups more accurately.

Incorporating ASN information into threat intelligence management enables security teams to better understand the nature and scope of threats facing their organization and take more effective measures to defend against them.

## ASN information

1. From the left navigation menu, select **Advanced Query Builder > IPv4 Queries > History Information - Bulk Usage**.
2. Enter a list of IPs and dates (one per line).
3. Click **Search**. Results are displayed in descending order.

## Save Query

1. Specify query parameters.
2. Click **Save Query**.
3. Provide a **Name** and **Description** for context.
4. Click **Save**. The query appears in [**Private Queries**](https://help.silentpush.com/docs/private-queries).

Autonomous System Number, a unique numeric identifier assigned to an Autonomous System (AS) for managing IP address routing within and between networks on the internet