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ASN Whois Database

& ASN Ownership Details

Instantly get ASN ownership insights with our precisely parsed ASN WHOIS database. Empower your cybersecurity, routing policies, and B2B targeting. Validate ownership, uncover network relationships, and strengthen threat intelligence. Lead your market with superior ASN data.

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AsBlockAut numNameCountryDomainRirOrganization handleOrganization nameOrganization typeOrganization addressOrganization countryOrganization emailOrganization phoneOrganization faxOrganization date updatedOrganization sourceAdmin handleAdmin nameAdmin countryAdmin addressAdmin emailAdmin faxAdmin phoneAdmin date updatedAdmin sourceTech handleTech nameTech countryTech addressTech emailTech faxTech phoneTech date updatedTech sourceAbuse handleAbuse nameAbuse countryAbuse addressAbuse emailAbuse faxAbuse phoneAbuse date updatedAbuse sourceIrt handleIrt nameIrt countryIrt addressIrt emailIrt faxIrt phoneIrt date updatedIrt sourceRaw whoisDate createdDate updated
AS901 - AS901901FSTRF14541USfrontierscience.orgARINFSTRF
Frontier Science and Technology Research Foundatio...
4033 Maple Rd, Amherst, NY, 14226, USUShttps://rdap.arin.net/registry/entity/FSTRFFRANC509-ARINFrancavilla, David
https://rdap.arin.net/registry/entity/FRANC509-ARI...
ZDARS1-ARINZdarsky, Lisahttps://rdap.arin.net/registry/entity/ZDARS1-ARINFRANC509-ARINFrancavilla, David
https://rdap.arin.net/registry/entity/FRANC509-ARI...
# # ARIN WHOIS data and services are subject to t...
2022-06-082022-06-08
AS11866 - AS1186611866EL-MALVERN-PAUSellucian.comARINEL-74Ellucian Company LP4 Country View Road, Malvern, PA, 19355, USUShttps://rdap.arin.net/registry/entity/EL-74SKROT-ARINSkrotzki, Petehttps://rdap.arin.net/registry/entity/SKROT-ARINSKROT-ARINSkrotzki, Petehttps://rdap.arin.net/registry/entity/SKROT-ARIN
# # ARIN WHOIS data and services are subject to t...
1999-01-212012-10-16
AS13777 - AS1377713777ACDNET-ASN2USacd.netARINACDCACD.net
1800 North Grand River Avenue, Lansing, MI, 48906,...
UShttps://rdap.arin.net/registry/entity/ACDCKS550-ARINSchoen, Kevinhttps://rdap.arin.net/registry/entity/KS550-ARINABUSE404-ARINAbuse Contact
https://rdap.arin.net/registry/entity/ABUSE404-ARI...
# # ARIN WHOIS data and services are subject to t...
1999-08-162012-03-27
AS14078 - AS1407814078VOICENETPULSE-TELECOMCAvoicenetpulse.caARINVC-563Voicenetpulse Telecom Inc.813 Dundas St W Unit 1, Whitby, ON, L1N2N6, CACAhttps://rdap.arin.net/registry/entity/VC-563KGM11-ARINKouamegne, Guy Martialhttps://rdap.arin.net/registry/entity/KGM11-ARINKGM11-ARINKouamegne, Guy Martialhttps://rdap.arin.net/registry/entity/KGM11-ARIN
# # ARIN WHOIS data and services are subject to t...
2017-07-192017-07-19
AS20859 - AS20927
% This is the RIPE Database query service. % The o...
2018-11-222018-11-22
AS23286 - AS2328623286HULUUShulu.comARINHULULHulu, LLC
2500 Broadway, Ste 200, Santa Monica, CA, 90404, U...
UShttps://rdap.arin.net/registry/entity/HULULMADRY6-ARINMadry, Walaidhttps://rdap.arin.net/registry/entity/MADRY6-ARINDTIM-ARINDEE Technology IP Mgmthttps://rdap.arin.net/registry/entity/DTIM-ARIN
# # ARIN WHOIS data and services are subject to t...
2007-10-102012-02-24
AS26638 - AS2663826638MPLS-PUBLIC-SCHOOLSUSmpls.k12.mn.usARINMPS-31Minneapolis Public Schools
1250 West Broadway Avenue, Minneapolis, MN, 55411,...
UShttps://rdap.arin.net/registry/entity/MPS-31NETWO7933-ARINNetwork Operations
https://rdap.arin.net/registry/entity/NETWO7933-AR...
NETWO7933-ARINNetwork Operations
https://rdap.arin.net/registry/entity/NETWO7933-AR...
# # ARIN WHOIS data and services are subject to t...
2011-02-112017-01-11
AS27349 - AS2734927349DNI-4305USdni.netARINDN-4Definitive Networks, Inc.
4309 Hacienda Drive, Suite 170, Pleasanton, CA, 94...
UShttps://rdap.arin.net/registry/entity/DN-4LECOM1-ARINLecomte, Ryanhttps://rdap.arin.net/registry/entity/LECOM1-ARINLECOM1-ARINLecomte, Ryanhttps://rdap.arin.net/registry/entity/LECOM1-ARIN
# # ARIN WHOIS data and services are subject to t...
2011-09-222012-03-02
--
AS32208 - AS3220832208SKL-SERVICES-ASNUSpslightwave.comARINSKLSESKL Services IncP.O. Box 966, Alvin, TX, 77512, USUShttps://rdap.arin.net/registry/entity/SKLSESWU-ARINWulf, SWENhttps://rdap.arin.net/registry/entity/SWU-ARINSKLHO-ARINSKL Hostmasterhttps://rdap.arin.net/registry/entity/SKLHO-ARIN
# # ARIN WHOIS data and services are subject to t...
2004-03-192024-08-28

Use Cases

Here are the top issues that you need to know and solve.

Routing Policy

Routing Policy Configuration

Network operators and ISPs rely on the ASN WHOIS database to understand how Autonomous Systems exchange routing information. This enables them to identify and select upstream providers and downstream organizations, and to define their routing policies efficiently. With this information, they can form strategic partnerships for traffic exchange, optimize traffic flow, and ensure efficient connectivity between different types of networks on the Internet.

Investigate

Cybersecurity Investigations

Cybersecurity professionals leverage ASN WHOIS data to trace the origin of cyber threats. They can identify the responsible organization behind malicious ASNs by analyzing the registration and ownership information of those ASNs. This allows them to contact those entities, report the threats, and take action to remove them. These steps enhance network security, ensure smooth operations, and help prevent breaches of sensitive data.

Network

Network Planning & Expansion

ISPs and networking organizations that are planning to expand their network infrastructure need ASN details to observe already established networks and peering between Autonomous Systems. They need to know the availability of internet number resources to acquire new ASNs or IP addresses strategically. Furthermore, they can examine market needs and predict future resource requirements to plan their network efficiently and on time.

Analytics

Competitive Analysis

Businesses utilize ASN WHOIS data for market analysis and competitive research. They can identify business opportunities, understand market trends, and recognize potential partnerships and gaps in the market. They can build strategic partnerships through the mutual exchange of traffic and avoid costly transit providers. This way, they can provide optimized and cost-efficient services to their customers and strengthen their position in the market.

Threat Detection

Abuse & Spam Reporting

The database provides contact details for ASN owners, including their abuse contacts. Individuals and organizations can easily use this information to report harmful online activities like spam or phishing attacks coming from specific ASNs. Security teams can prevent online threats by quickly addressing these malicious activities. This efficient approach ensures a secure online environment for users and protects services from any disruptions.

Infrastructure

ISP Infrastructure Mapping

Internet Service Providers (ISPs) use ASN WHOIS databases to track their IP addresses and see how their networks connect with others. This helps ISPs manage their networks effectively, route customer traffic correctly, and follow guidelines set by the Internet Assigned Numbers Authority (IANA). Proper mapping ensures fast and reliable internet service for all customers.

ASN Whois

Use our ASN Whois database to identify network operators, monitor AS ownership and routing, and keep your network secure and running smoothly.

Fields Icon

Fields

55

Entries Icon

Entries

10.3M

Last Updated Icon

Last Updated

Yesterday

CSV Icon

CSV Size

44.20 MB

FieldDescriptionExample
as_blockThe AS Block is the range of Autonomous System Numbers (ASNs) associated with the IP range.AS15169 - AS15170
aut_numThe Autonomous System Number (ASN) is a unique identifier assigned to an autonomous system.AS15169
netnameThe netname is the name of the network associated with the autonomous system.GOOGLE
as_countryThe country field indicates the country where the Autonomous System is registered.US
domainThe domain field contains the domain associated with the Autonomous System.google.com
rirThe RIR (Regional Internet Registry) is the organization responsible for managing the AS Number.ARIN
org_handleThe organization handle is a unique identifier for the organization associated with the AS Number.ORG-GOGL1-ARIN
org_nameThe name of the organization that owns the AS range.Google LLC
org_typeThe type of organization (e.g., ISP, enterprise, educational institution).ISP
org_addressThe physical address of the organization.1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
org_countryThe country where the organization is located.US
org_date_updatedThe date when the organization's information was last updated.2023-01-15
org_sourceThe source of the organization's information (e.g., RIR, database).ARIN
admin_handleThe handle for the administrative contact of the AS Number.ADMIN-GOGL1-ARIN
admin_nameThe name of the administrative contact.John Doe
admin_countryThe country of the administrative contact.US
admin_addressThe physical address of the administrative contact.1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
admin_date_updatedThe date when the administrative contact's information was last updated.2023-01-10
admin_sourceThe source of the administrative contact's information (e.g., RIR, database).ARIN
tech_handleThe handle for the technical contact of the AS Number.TECH-GOGL1-ARIN
tech_nameThe name of the technical contact.Jane Smith
tech_countryThe country of the technical contact.US
tech_addressThe physical address of the technical contact.1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
tech_date_updatedThe date when the technical contact's information was last updated.2023-01-12
tech_sourceThe source of the technical contact's information (e.g., RIR, database).ARIN
abuse_handleThe handle for reporting abuse related to the AS Number.ABUSE-GOGL1-ARIN
abuse_nameThe name of the abuse contact.Abuse Team
abuse_countryThe ISO 3166-1 alpha-2 code of the country where the abuse contact is located.US
abuse_addressThe physical address of the abuse contact.1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
abuse_date_updatedThe date when the abuse contact's information was last updated.2023-01-14
abuse_sourceThe source of the abuse contact's information (e.g., RIR, database).ARIN
irt_handleThe handle for the irt.IRT-GOGL1-ARIN
irt_nameThe name of the irt contact.
irt_countryThe country of the irt contact.US
irt_addressThe physical address of the irt contact.1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
irt_date_updatedThe date when the irt contact's information was last updated.2023-01-14
irt_sourceThe source of the irt contact's information (e.g., RIR, database).ARIN
raw_whoisThe raw WHOIS data for the AS Number.AS15169 Google LLC 1600 Amphitheatre Parkway Mountain View, CA 94043 US
date_createdThe date when the AS Number was created in the database.2023-01-01
date_updatedThe date when the AS Number's information was last updated.2023-01-15

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Frequently Asked Questions

An ASN WHOIS database contains registration data for Autonomous System Numbers (ASNs). It shows the organization to which an ASN is assigned, its contact information, and routing details. It also reveals the ASNs with which a particular Autonomous System exchanges routes, providing essential insights into how networks are connected on the Internet.

The Internet is made up of numerous Autonomous Systems, which themselves consist of interconnected devices such as computers, mobile devices, and laptops that share data. To uniquely identify each Autonomous System, a number is assigned to it, known as an Autonomous System Number.

An ASN WHOIS database typically provides the ASN ownership, the organization's name, country, and contact details (email, phone). It also includes import and export routing policies and IP prefixes announced by the ASN.

Yes, cybersecurity professionals frequently use ASN WHOIS data to identify the organization responsible for malicious IP addresses or ASNs. This enables them to trace cyberattacks, report abuse, and implement network security measures. They utilize this data to control and mitigate threats.

An Autonomous System (AS) is a single entity or group of networking organizations that operates under a defined routing policy and exchanges routing information with other networks using the Border Gateway Protocol (BGP).

Yes, we do provide free ASN lookups through our ASN Lookup tool , but the number of queries is limited. You will need to upgrade your plan to get full access to the data.

ISPs rely on ASN WHOIS data to understand inter-network relationships, optimize routing policies, and plan for network expansion. It helps them identify potential transit partners, manage their IP addresses, and ensure smooth Internet service delivery by effectively exchanging routing information with other networks.

Internet Exchange Points (IXPs) are physical locations where different types of networking organizations, mainly ISPs and content providers, directly exchange routing information and IP prefixes.

Our Customers Say

We were looking for a solution that allows us to get the necessary information by ip-address. It was important for us to find local database, because our clients are banks that don't prefer to share their personal data. These guys quickly answered all our numerous questions before we stopped looking for a suitable solution. Special thanks to Rameez for all his efforts. We really hope for our long-term cooperation and wish your team success. Your approach to customers deserves respect.

Tamara Lobach
Tamara Lobach
CEO, SoftClub
CEO, SoftClub

In other services, we have been using in the past to geolocate the IP addresses but the problem always was the unreliable data, out of sync geolocation databases but with IPGeolocation this problem is now a thing of the past. We rarely get any issue of outdated data and in for the last 1 year, we have been using this service only 3 or 4 IPs were wrongly geolocated and believe me we check for thousands of IPs every month.

Qadeer Khan
Qadeer Khan
Head of Finance, Ace
Head of Finance, Ace

We worked with the ipgeolocation team, the team was super helpful, knowledgeable and the tool is easy to integrate. We have had no problem since we last enabled ipgeolocation. We are seeing incremental traffic directed to the right country, as a result, the volume has increased in acquisition.

Deepti Lubin
Deepti Lubin
CEO, OnDeck
CEO, OnDeck

It was a pleasure to communicate with managers: they responded fast and supported me on all stages: as technically as with documents and other legal staff. The best customer commitment! Have a personal approach for each client!

Maryia Yanchanka
Maryia Yanchanka
CEO, Capital.com
CEO, Capital.com

We were looking for a solution that allows us to get the necessary information by ip-address. It was important for us to find local database, because our clients are banks that don't prefer to share their personal data. These guys quickly answered all our numerous questions before we stopped looking for a suitable solution. Special thanks to Rameez for all his efforts. We really hope for our long-term cooperation and wish your team success. Your approach to customers deserves respect.

Tamara Lobach
Tamara Lobach
CEO, SoftClub
CEO, SoftClub

In other services, we have been using in the past to geolocate the IP addresses but the problem always was the unreliable data, out of sync geolocation databases but with IPGeolocation this problem is now a thing of the past. We rarely get any issue of outdated data and in for the last 1 year, we have been using this service only 3 or 4 IPs were wrongly geolocated and believe me we check for thousands of IPs every month.

Qadeer Khan
Qadeer Khan
Head of Finance, Ace
Head of Finance, Ace

We worked with the ipgeolocation team, the team was super helpful, knowledgeable and the tool is easy to integrate. We have had no problem since we last enabled ipgeolocation. We are seeing incremental traffic directed to the right country, as a result, the volume has increased in acquisition.

Deepti Lubin
Deepti Lubin
CEO, OnDeck
CEO, OnDeck

It was a pleasure to communicate with managers: they responded fast and supported me on all stages: as technically as with documents and other legal staff. The best customer commitment! Have a personal approach for each client!

Maryia Yanchanka
Maryia Yanchanka
CEO, Capital.com
CEO, Capital.com
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