IP WHOIS

Accurate, Well-Parsed WHOIS Data

IP WHOIS data that’s formatted consistently and offers unmatched accuracy and reliability

{
  "net": "1.1.1.0/24",
  "total": 1,
  "page": 0,
  "records": [
    {
      "range": "1.1.1.0/24",
      "id": "APNIC-LABS",
      "name": "APNIC and Cloudflare DNS Resolver project",
      "country": "AU",
      "org": {
        "id": "ORG-ARAD1-AP",
        "name": "APNIC Research and Development",
        "address": "********",
        "country": "AU",
        "admin": "",
        "abuse": null,
        "tech": "",
        "maintainer": "APNIC-HM",
        "created": null,
        "updated": "2023-09-05",
        "source": "apnic",
        "raw": "organisation:   ORG-ARAD1-AP\norg-name:       APNIC Research and Development\norg-type:       LIR\ncountry:        AU\naddress:        ********\nphone:          ********\nfax-no:         ********\ne-mail:         ********\nmnt-ref:        APNIC-HM\nmnt-by:         APNIC-HM\nlast-modified:  2023-09-05T02:15:19Z\nsource:         APNIC\n"
      },
      "status": "ASSIGNED PORTABLE",
      "tech": {
        "id": "AIC3-AP",
        "name": "APNICRANDNET Infrastructure Contact",
        "email": "research@apnic.net",
        "address": "6 Cordelia St South Brisbane QLD 4101",
        "country": "AU",
        "phone": "+61 7 3858 3100",
        "fax": null,
        "created": null,
        "updated": "2024-07-18",
        "source": "apnic",
        "raw": "role:           APNICRANDNET Infrastructure Contact\naddress:        6 Cordelia St South Brisbane QLD 4101\ncountry:        AU\nphone:          +61 7 3858 3100\ne-mail:         research@apnic.net\nadmin-c:        AIC3-AP\ntech-c:         AIC3-AP\nnic-hdl:        AIC3-AP\nmnt-by:         MAINT-APNICRANDNET\nlast-modified:  2024-07-18T04:37:37Z\nsource:         APNIC"
      },
      "maintainer": null,
      "admin": {
        "id": "AIC3-AP",
        "name": "APNICRANDNET Infrastructure Contact",
        "email": "research@apnic.net",
        "address": "6 Cordelia St South Brisbane QLD 4101",
        "country": "AU",
        "phone": "+61 7 3858 3100",
        "fax": null,
        "created": null,
        "updated": "2024-07-18",
        "source": "apnic",
        "raw": "role:           APNICRANDNET Infrastructure Contact\naddress:        6 Cordelia St South Brisbane QLD 4101\ncountry:        AU\nphone:          +61 7 3858 3100\ne-mail:         research@apnic.net\nadmin-c:        AIC3-AP\ntech-c:         AIC3-AP\nnic-hdl:        AIC3-AP\nmnt-by:         MAINT-APNICRANDNET\nlast-modified:  2024-07-18T04:37:37Z\nsource:         APNIC"
      },
      "abuse": {
        "id": "AA1412-AP",
        "name": "ABUSE APNICRANDNETAU",
        "email": "helpdesk@apnic.net",
        "address": "PO Box 3646\nSouth Brisbane, QLD 4101\nAustralia",
        "country": "AU",
        "phone": "+000000000",
        "fax": null,
        "created": null,
        "updated": "2025-05-28",
        "source": "apnic",
        "raw": "role:           ABUSE APNICRANDNETAU\ncountry:        ZZ\naddress:        PO Box 3646\naddress:        South Brisbane, QLD 4101\naddress:        Australia\nphone:          +000000000\ne-mail:         helpdesk@apnic.net\nadmin-c:        AR302-AP\ntech-c:         AR302-AP\nnic-hdl:        AA1412-AP\nremarks:        Generated from irt object IRT-APNICRANDNET-AU\nremarks:        helpdesk@apnic.net was validated on 2021-02-09\nabuse-mailbox:  helpdesk@apnic.net\nmnt-by:         APNIC-ABUSE\nlast-modified:  2025-05-28T03:31:35Z\nsource:         APNIC"
      },
      "created": null,
      "updated": "2023-04-26",
      "source": "apnic",
      "raw": "inetnum:        1.1.1.0 - 1.1.1.255
netname:        APNIC-LABS
descr:          APNIC and Cloudflare DNS Resolver project
descr:          Routed globally by AS13335/Cloudflare
descr:          Research prefix for APNIC Labs
country:        AU
org:            ORG-ARAD1-AP
admin-c:        AIC3-AP
tech-c:         AIC3-AP
abuse-c:        AA1412-AP
status:         ASSIGNED PORTABLE
remarks:        ---------------
remarks:        All Cloudflare abuse reporting can be done via
remarks:        resolver-abuse@cloudflare.com
remarks:        ---------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-APNICRANDNET
mnt-irt:        IRT-APNICRANDNET-AU
last-modified:  2023-04-26T22:57:58Z
mnt-lower:      MAINT-APNICRANDNET
source:         APNIC

irt:            IRT-APNICRANDNET-AU
address:        PO Box 3646
address:        South Brisbane, QLD 4101
address:        Australia
e-mail:         helpdesk@apnic.net
abuse-mailbox:  helpdesk@apnic.net
admin-c:        AR302-AP
tech-c:         AR302-AP
auth:           # Filtered
remarks:        helpdesk@apnic.net was validated on 2021-02-09
mnt-by:         MAINT-APNICRANDNET
last-modified:  2025-11-18T00:26:57Z
source:         APNIC

organisation:   ORG-ARAD1-AP
org-name:       APNIC Research and Development
org-type:       LIR
country:        AU
address:        6 Cordelia St
phone:          +61-7-38583100
fax-no:         +61-7-38583199
e-mail:         helpdesk@apnic.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:19Z
source:         APNIC

role:           ABUSE APNICRANDNETAU
country:        ZZ
address:        PO Box 3646
address:        South Brisbane, QLD 4101
address:        Australia
phone:          +000000000
e-mail:         helpdesk@apnic.net
admin-c:        AR302-AP
tech-c:         AR302-AP
nic-hdl:        AA1412-AP
remarks:        Generated from irt object IRT-APNICRANDNET-AU
remarks:        helpdesk@apnic.net was validated on 2021-02-09
abuse-mailbox:  helpdesk@apnic.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-28T03:31:35Z
source:         APNIC

role:           APNICRANDNET Infrastructure Contact
address:        6 Cordelia St South Brisbane QLD 4101
country:        AU
phone:          +61 7 3858 3100
e-mail:         research@apnic.net
admin-c:        AIC3-AP
tech-c:         AIC3-AP
nic-hdl:        AIC3-AP
mnt-by:         MAINT-APNICRANDNET
last-modified:  2024-07-18T04:37:37Z
source:         APNIC

route:          1.1.1.0/24
origin:         AS13335
descr:          APNIC Research and Development 6 Cordelia St
mnt-by:         MAINT-APNICRANDNET
last-modified:  2023-04-26T02:42:44Z
source:         APNIC"
    }
  ]
}

Comprehensive, Detailed Data

Access consistent, user-friendly WHOIS data with IPinfo’s IP WHOIS. Sourced daily from Regional Internet Registries (RIRs) around the globe, our WHOIS data is processed for consistent formatting and structure, ensuring accuracy and ease of use. Whether you’re enhancing network management, conducting cybersecurity investigations, or driving data-driven decisions, our WHOIS data provides the information you need.

Flexible Access Options

API, database download, and platform integrations—built for any stack, any scale.

Reliable IP Intelligence

Industry-leading precision, daily updates, and trusted accuracy for every IP address.

Built for Developers

Official libraries, clean docs, and powerful APIs designed for real-world deployment.

Two ways to use it · one team behind you

Built for rapid, accurate development

Query it live through the API, or download a database sample and contact sales for full access.

Fast and Easy API Access

Gain access to our best-in-class data. Setup takes just a few minutes.

$curl https://ipinfo.io/whois/net/1.1.1.0/24?token=$TOKEN

{
  "net": "1.1.1.0/24",
  "total": 1,
  "page": 0,
  "records": [
    {
      "range": "1.1.1.0/24",
      "id": "APNIC-LABS",
      "name": "APNIC and Cloudflare DNS Resolver project",
      "country": "AU",
      "org": {
        "id": "ORG-ARAD1-AP",
        "name": "APNIC Research and Development",
        "address": "********",
        "country": "AU",
        "admin": "",
        "abuse": null,
        "tech": "",
        "maintainer": "APNIC-HM",
        "created": null,
        "updated": "2023-09-05",
        "source": "apnic",
        "raw": "organisation:   ORG-ARAD1-AP\norg-name:       APNIC Research and Development\norg-type:       LIR\ncountry:        AU\naddress:        ********\nphone:          ********\nfax-no:         ********\ne-mail:         ********\nmnt-ref:        APNIC-HM\nmnt-by:         APNIC-HM\nlast-modified:  2023-09-05T02:15:19Z\nsource:         APNIC\n"
      },
      "status": "ASSIGNED PORTABLE",
      "tech": {
        "id": "AIC3-AP",
        "name": "APNICRANDNET Infrastructure Contact",
        "email": "research@apnic.net",
        "address": "6 Cordelia St South Brisbane QLD 4101",
        "country": "AU",
        "phone": "+61 7 3858 3100",
        "fax": null,
        "created": null,
        "updated": "2024-07-18",
        "source": "apnic",
        "raw": "role:           APNICRANDNET Infrastructure Contact\naddress:        6 Cordelia St South Brisbane QLD 4101\ncountry:        AU\nphone:          +61 7 3858 3100\ne-mail:         research@apnic.net\nadmin-c:        AIC3-AP\ntech-c:         AIC3-AP\nnic-hdl:        AIC3-AP\nmnt-by:         MAINT-APNICRANDNET\nlast-modified:  2024-07-18T04:37:37Z\nsource:         APNIC"
      },
      "maintainer": null,
      "admin": {
        "id": "AIC3-AP",
        "name": "APNICRANDNET Infrastructure Contact",
        "email": "research@apnic.net",
        "address": "6 Cordelia St South Brisbane QLD 4101",
        "country": "AU",
        "phone": "+61 7 3858 3100",
        "fax": null,
        "created": null,
        "updated": "2024-07-18",
        "source": "apnic",
        "raw": "role:           APNICRANDNET Infrastructure Contact\naddress:        6 Cordelia St South Brisbane QLD 4101\ncountry:        AU\nphone:          +61 7 3858 3100\ne-mail:         research@apnic.net\nadmin-c:        AIC3-AP\ntech-c:         AIC3-AP\nnic-hdl:        AIC3-AP\nmnt-by:         MAINT-APNICRANDNET\nlast-modified:  2024-07-18T04:37:37Z\nsource:         APNIC"
      },
      "abuse": {
        "id": "AA1412-AP",
        "name": "ABUSE APNICRANDNETAU",
        "email": "helpdesk@apnic.net",
        "address": "PO Box 3646\nSouth Brisbane, QLD 4101\nAustralia",
        "country": "AU",
        "phone": "+000000000",
        "fax": null,
        "created": null,
        "updated": "2025-05-28",
        "source": "apnic",
        "raw": "role:           ABUSE APNICRANDNETAU\ncountry:        ZZ\naddress:        PO Box 3646\naddress:        South Brisbane, QLD 4101\naddress:        Australia\nphone:          +000000000\ne-mail:         helpdesk@apnic.net\nadmin-c:        AR302-AP\ntech-c:         AR302-AP\nnic-hdl:        AA1412-AP\nremarks:        Generated from irt object IRT-APNICRANDNET-AU\nremarks:        helpdesk@apnic.net was validated on 2021-02-09\nabuse-mailbox:  helpdesk@apnic.net\nmnt-by:         APNIC-ABUSE\nlast-modified:  2025-05-28T03:31:35Z\nsource:         APNIC"
      },
      "created": null,
      "updated": "2023-04-26",
      "source": "apnic",
      "raw": "inetnum:        1.1.1.0 - 1.1.1.255
netname:        APNIC-LABS
descr:          APNIC and Cloudflare DNS Resolver project
descr:          Routed globally by AS13335/Cloudflare
descr:          Research prefix for APNIC Labs
country:        AU
org:            ORG-ARAD1-AP
admin-c:        AIC3-AP
tech-c:         AIC3-AP
abuse-c:        AA1412-AP
status:         ASSIGNED PORTABLE
remarks:        ---------------
remarks:        All Cloudflare abuse reporting can be done via
remarks:        resolver-abuse@cloudflare.com
remarks:        ---------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-APNICRANDNET
mnt-irt:        IRT-APNICRANDNET-AU
last-modified:  2023-04-26T22:57:58Z
mnt-lower:      MAINT-APNICRANDNET
source:         APNIC

irt:            IRT-APNICRANDNET-AU
address:        PO Box 3646
address:        South Brisbane, QLD 4101
address:        Australia
e-mail:         helpdesk@apnic.net
abuse-mailbox:  helpdesk@apnic.net
admin-c:        AR302-AP
tech-c:         AR302-AP
auth:           # Filtered
remarks:        helpdesk@apnic.net was validated on 2021-02-09
mnt-by:         MAINT-APNICRANDNET
last-modified:  2025-11-18T00:26:57Z
source:         APNIC

organisation:   ORG-ARAD1-AP
org-name:       APNIC Research and Development
org-type:       LIR
country:        AU
address:        6 Cordelia St
phone:          +61-7-38583100
fax-no:         +61-7-38583199
e-mail:         helpdesk@apnic.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:19Z
source:         APNIC

role:           ABUSE APNICRANDNETAU
country:        ZZ
address:        PO Box 3646
address:        South Brisbane, QLD 4101
address:        Australia
phone:          +000000000
e-mail:         helpdesk@apnic.net
admin-c:        AR302-AP
tech-c:         AR302-AP
nic-hdl:        AA1412-AP
remarks:        Generated from irt object IRT-APNICRANDNET-AU
remarks:        helpdesk@apnic.net was validated on 2021-02-09
abuse-mailbox:  helpdesk@apnic.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-28T03:31:35Z
source:         APNIC

role:           APNICRANDNET Infrastructure Contact
address:        6 Cordelia St South Brisbane QLD 4101
country:        AU
phone:          +61 7 3858 3100
e-mail:         research@apnic.net
admin-c:        AIC3-AP
tech-c:         AIC3-AP
nic-hdl:        AIC3-AP
mnt-by:         MAINT-APNICRANDNET
last-modified:  2024-07-18T04:37:37Z
source:         APNIC

route:          1.1.1.0/24
origin:         AS13335
descr:          APNIC Research and Development 6 Cordelia St
mnt-by:         MAINT-APNICRANDNET
last-modified:  2023-04-26T02:42:44Z
source:         APNIC"
    }
  ]
}

50-200 ms response time on average
99.999% uptime
Data updates every 24 hours

Choose your plan

Database Download Sample

Choose a format

csv12M entries · updated Aug 21, 2026345.53 MBjson12M entries · updated Aug 21, 2026404.95 MBmmdb12M entries · updated Aug 21, 20261.36 GBparquet12M entries · updated Aug 21, 2026330.91 MB

Download CSV sample

Get the Full Database

Like what you see in the sample above? Contact sales for full dataset access — custom data coverage, premium support, and seamless migration.

Customizable fields
Data updates every 24 hours

How to get our IP WHOIS data

Compare features across IPinfo’s products. Choose what best fits your use case — WHOIS data is available exclusively with custom plans for users who need detailed WHOIS information.

Key feature	IPinfo Lite	IPinfo Core	IPinfo Max
IP Range The IP range the record covers.
Netblock ID The raw netblock identifier from the WHOIS record.
Netblock Name The netblock's name.
Country Code The two-letter country code on the record (ISO 3166-1 alpha-2).
Assignment Status How the range is assigned.
Technical Contact The id of the netblock's technical contact.
Maintainer The id of the contact authorized to update the netblock's record.
Admin Contact The id of the netblock's administrative contact.
RIR Source The RIR the record comes from, such as RIPE or ARIN.
WHOIS Domain The domain name on the WHOIS entry.
Last Updated The date the WHOIS entry was last updated.
Organization The id or name of the organization responsible for the netblock.
Reverse DNS Domain The reverse DNS domain shared by a majority of the range's addresses, where one exists.
Domain The domain associated with the netblock.
Geolocation The latitude and longitude the network's users are located around.
Organization Address The address of the responsible organization.
ASN The autonomous system number routing traffic for the range, from BGP routing data.
AS Name The name of that AS.
AS Domain The domain of that AS.
AS Type The type of that AS, such as ISP, business, or hosting.
	Learn more	Learn more	Learn more

How People Use WHOIS Data

WHOIS data powers everything from network investigations to compliance checks. With detailed ownership, registration, and contact information for IP addresses, teams can make smarter, faster decisions about security, attribution, and trust. Here’s how top companies put IPinfo’s WHOIS data to work:

Domain Ownership Information

Link malicious infrastructure from IP addresses to their registrants, accelerating incident response and forensic analysis.

Fraud Prevention

Collect evidence of suspicious activities and flag behavior patterns, like reuse of registrant information across fraudulent domains, to identify fraud in real time.

Brand & IP Protection

Monitor domain registration data for unauthorized or suspicious registrations that may infringe on trademarks, helping protect digital assets and prevent abuse.

Made for Developers, Trusted by Enterprises

Our expert in-house team diligently maintains and supports our IP WHOIS, ensuring you always have accurate, up-to-date IP data at your fingertips. With libraries for more than a dozen popular programming languages—from Ruby to Rust and PHP to Perl—integrating our API is quick and seamless. Explore our developer docs to see just how easy it is to get started.

I can infer that IPinfo is doing much more than just taking at face value what public registries are providing. For example, they’re looking at domain name ownership within those IP ranges to infer asset ownership. This is the same way I’d approach this problem.
Jeremy TurnerHead of Cyber and Risk at Cogility

We needed to further contextualize Internet scanners, crawlers, and bots. Origin networks, data centers, ASNs, and countries are a huge component of that. We were looking for a faster, more developer-friendly alternative to existing geo-IP providers. A close friend of mine hit the IPinfo API with cURL, and I saw all the information we needed.
Andrew MorrisFounder & Chief Architect at Greynoise

We love to integrate with the IPinfo API because it provides us with a highly reliable and accurate stream of data.
Richard WellsDirector at CFC

I can infer that IPinfo is doing much more than just taking at face value what public registries are providing. For example, they’re looking at domain name ownership within those IP ranges to infer asset ownership. This is the same way I’d approach this problem.
Jeremy TurnerHead of Cyber and Risk at Cogility

We needed to further contextualize Internet scanners, crawlers, and bots. Origin networks, data centers, ASNs, and countries are a huge component of that. We were looking for a faster, more developer-friendly alternative to existing geo-IP providers. A close friend of mine hit the IPinfo API with cURL, and I saw all the information we needed.
Andrew MorrisFounder & Chief Architect at Greynoise