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ASN information of 138.51.64.178
Query
138.51.64.178
ASN Information
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2025, American Registry for Internet Numbers, Ltd. # # # Query terms are ambiguous. The query is assumed to be: # "n 138.51.64.178" # # Use "?" to get help. # NetRange: 138.51.0.0 - 138.51.255.255 CIDR: 138.51.0.0/16 NetName: CA-NET NetHandle: NET-138-51-0-0-1 Parent: NET138 (NET-138-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: University of Toronto (UNIVER-36) RegDate: 1990-02-06 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/138.51.0.0 OrgName: University of Toronto OrgId: UNIVER-36 Address: Information & Technology Services Address: 4 Bancroft Avenue Address: ROOM 101C City: TORONTO StateProv: ON PostalCode: M5S 1C1 Country: CA RegDate: 1988-09-20 Updated: 2019-11-08 Ref: https://rdap.arin.net/registry/entity/UNIVER-36 OrgAbuseHandle: RS2206-ARIN OrgAbuseName: Sutherland, Russell OrgAbusePhone: +1-416-978-6620 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/RS2206-ARIN OrgNOCHandle: DCA264-ARIN OrgNOCName: Carson, Douglas OrgNOCPhone: +1-416-978-3855 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/DCA264-ARIN OrgTechHandle: RS2206-ARIN OrgTechName: Sutherland, Russell OrgTechPhone: +1-416-978-6620 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/RS2206-ARIN OrgTechHandle: NSTEC-ARIN OrgTechName: NS-TECH OrgTechPhone: +1-416-978-6620 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/NSTEC-ARIN OrgAbuseHandle: NSTEC-ARIN OrgAbuseName: NS-TECH OrgAbusePhone: +1-416-978-6620 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/NSTEC-ARIN RTechHandle: NSTEC-ARIN RTechName: NS-TECH RTechPhone: +1-416-978-6620 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/NSTEC-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2025, American Registry for Internet Numbers, Ltd. #
ASN Lookup
Quickly lookup updated information about specific Autonomous System Number (ASN), Organization, CIDR, or registered IP addresses (IPv4 and IPv6).
An ASN (Autonomous System Number) Lookup tool is a service that allows you to find information about an Autonomous System (AS), which is a collection of networks that operate under a single administrative domain. An AS is identified by a unique ASN, which is assigned by the Internet Assigned Numbers Authority (IANA). The ASN Lookup tool allows you to find information about an AS, including its name, country, and internet service provider (ISP).
How to Use an ASN Lookup Tool?
Enter the ASN number.
You can find the ASN number by using other networking tools, such as traceroute, or by searching for the organization name or ISP associated with the AS.
Run the Lookup tool: Click the "Check" button to run the ASN Lookup tool. The tool will scan its database and provide information about the AS associated with the ASN number.
Review the results: The ASN Lookup tool will provide a report that lists the name of the AS, the country where it is located, and the ISP that manages the AS. It may also provide additional information, such as the IP address ranges associated with the AS.
Use the information: Once you've looked up the ASN, you can use the information for a variety of purposes, such as troubleshooting network issues, identifying potential security threats, or optimizing network performance.
