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View the Autonomous System Number (ASN) and network information for sendgrid.com. See which network operates this domain.
An ASN (Autonomous System Number) is a unique identifier assigned to a group of IP networks that operate under a single routing policy. Every major network on the internet — ISPs, cloud providers, CDNs, and large enterprises — has one or more ASNs. When you look up the ASN for sendgrid.com, you discover which network is responsible for routing traffic to this domain. ASNs are fundamental to BGP (Border Gateway Protocol), which is the protocol that makes internet routing work between different networks.
Knowing the ASN for sendgrid.com reveals important details about its network infrastructure. You can identify the hosting provider, understand the network topology, and assess the reliability of the infrastructure behind sendgrid.com. ASN data is also valuable for security analysis — it helps detect suspicious hosting patterns, identify shared infrastructure, and trace the origin of network traffic. Network administrators use ASN lookups to troubleshoot routing issues and verify peering relationships.
The ASN (Autonomous System Number) for sendgrid.com identifies the network operator responsible for routing traffic to and from this domain. Check the live results above to see the current ASN, organization, and ISP details for sendgrid.com.
The ASN lookup reveals the hosting provider and ISP for sendgrid.com. The organization and ISP fields in the results above show which company operates the network infrastructure that sendgrid.com runs on.
An ASN is a unique identifier assigned to a network (autonomous system) on the internet. Each ASN represents a collection of IP address ranges under a single administrative entity — such as an ISP, cloud provider, or large enterprise. ASNs are essential for BGP routing, which determines how traffic flows between networks across the internet.