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ASN information of 123.208.65.160
Query
123.208.65.160
ASN Information
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '123.208.0.0 - 123.208.255.255' % Abuse contact for '123.208.0.0 - 123.208.255.255' is '[email protected]' inetnum: 123.208.0.0 - 123.208.255.255 netname: TELSTRAINTERNET46-AU descr: Telstra Internet country: AU admin-c: TIAR-AP tech-c: TIAR-AP abuse-c: AT1005-AP status: ALLOCATED NON-PORTABLE mnt-by: MAINT-AU-TIAR-AP mnt-lower: MAINT-AU-TIAR-AP mnt-irt: IRT-TELSTRA-AU last-modified: 2024-06-18T07:24:07Z geofeed: https://geofeed.tools.telstra.net/geofeed.csv source: APNIC irt: IRT-TELSTRA-AU address: Telstra Internet e-mail: [email protected] abuse-mailbox: [email protected] admin-c: TIAR-AP tech-c: TIAR-AP auth: # Filtered remarks: [email protected] was validated on 2026-01-26 mnt-by: MAINT-AU-TIAR-AP last-modified: 2026-01-26T01:19:20Z source: APNIC role: ABUSE TELSTRAAU country: ZZ address: Telstra Internet phone: +000000000 e-mail: [email protected] admin-c: TIAR-AP tech-c: TIAR-AP nic-hdl: AT1005-AP remarks: Generated from irt object IRT-TELSTRA-AU remarks: [email protected] was validated on 2026-01-26 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2026-01-26T01:19:29Z source: APNIC person: Telstra Internet Address Registry address: Telstra Internet address: 242 Exhibition St address: Melbourne address: VIC 3000 country: AU phone: +61 000000000 e-mail: [email protected] nic-hdl: TIAR-AP remarks: Telstra Internet Address Registry Role Object mnt-by: MAINT-AU-TIAR-AP last-modified: 2021-12-09T22:28:56Z source: APNIC % Information related to '123.208.65.0/24AS135887' route: 123.208.65.0/24 origin: AS135887 descr: Telstra Corporation (Belong) 242 Exhibition Street mnt-by: MAINT-AU-TIAR-AP last-modified: 2020-04-21T06:08:20Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)
ASN Lookup
- Check Autonomous System Number Information
Use our ASN Lookup tool to quickly find detailed information about an Autonomous System Number (ASN), organization, CIDR blocks, or registered IP addresses (IPv4 and IPv6). This tool helps identify the network owner, internet service provider (ISP), and infrastructure behind an autonomous system.
ASN lookups are commonly used by network engineers, cybersecurity professionals, and researchers to analyze network ownership, investigate routing paths, and understand internet infrastructure.
What Is an ASN (Autonomous System Number)?
An Autonomous System (AS) is a collection of IP networks managed by a single organization that follows a common routing policy. Each autonomous system is identified by a unique Autonomous System Number (ASN).
ASN numbers are assigned by regional internet registries under the coordination of the Internet Assigned Numbers Authority (IANA). These identifiers allow networks to exchange routing information using the Border Gateway Protocol (BGP), which powers global internet connectivity.
Large organizations such as internet service providers, cloud platforms, and data centers operate their own autonomous systems.
What Information an ASN Lookup Can Provide
Our ASN lookup tool allows you to search for detailed information about an autonomous system and its associated networks.
The results may include:
- Autonomous System Number (ASN)
- Organization or network operator
- Country where the ASN is registered
- Internet Service Provider (ISP)
- Associated IP address ranges
- CIDR blocks linked to the ASN
- BGP routing information
This information helps identify the network infrastructure behind IP addresses and internet routing paths.
How to Use the ASN Lookup Tool
Running an ASN lookup is simple and takes only a few seconds:
- Enter the ASN number, organization name, CIDR block, or IP address.
- Click the Check button to run the ASN lookup.
- Review the results showing the autonomous system and associated network information.
The system will query network databases and return information about the autonomous system responsible for the IP space.
How to Find an ASN Number
If you do not already know the ASN number, it can often be identified using networking tools or by searching for the organization associated with an IP address.
Common ways to discover an ASN include:
- Using network diagnostic tools such as traceroute
- Performing an IP address lookup
- Searching by ISP or organization name
- Analyzing BGP routing information
Once you have the ASN number, you can use this tool to view detailed information about the autonomous system.
Why Use an ASN Lookup?
ASN lookup tools are widely used to analyze internet routing and network infrastructure. They provide valuable insights into how traffic moves across the internet.
- Troubleshoot network connectivity issues
- Identify organizations behind IP address ranges
- Analyze internet routing paths
- Investigate potential security threats
- Monitor network performance and infrastructure
Understanding ASN data helps administrators and researchers better understand the structure of global networks.
Lookup ASN and Network Information Now
Use our ASN Lookup tool to quickly search for information about an autonomous system, organization, or IP address range. Enter an ASN number, IP address, or CIDR block to view detailed network information.
This tool helps you explore internet infrastructure and analyze the networks responsible for routing traffic worldwide.
Frequently Asked Questions
What is an ASN?
An ASN (Autonomous System Number) is a unique identifier assigned to a group of IP networks managed by a single organization and used for routing internet traffic.
Who assigns ASN numbers?
ASN numbers are assigned by regional internet registries under the coordination of the Internet Assigned Numbers Authority (IANA).
What is an Autonomous System?
An Autonomous System is a network or group of networks operated by a single entity that shares a common routing policy.
Why are ASN lookups useful?
ASN lookups help identify the organization behind IP addresses, analyze internet routing paths, troubleshoot network issues, and investigate network infrastructure.
