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Sumo Logic

ASN Lookup

Sumo Logic can lookup an Autonomous System Number (ASN) and organization name by an IP address. Any IP addresses that don't have an ASN will return null values.


The ASN Lookup operator uses lookup with a specific path, asn://default, to provide the ASN and associated organization.

  • lookup <fields> from asn://default on ip=<ip_address>
Lookup fields Description
* Use a wildcard (*) character as a shortcut to return both fields.
asn Autonomous System Number
organization Autonomous System Organization Name or ID in some cases.


The following query references a data stream with IPv4 addresses, parses those IPv4 addresses, and then uses ASN Lookup to retrieve their autonomous system information. 

_sourceCategory=stream "remote_ip="
| parse regex "(?<ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})"
| lookup organization, asn from asn://default on ip = ip