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Whois API / Whois History / Reverse Whois

Our WHOIS API returns consistent and well-structured WHOIS data in XML & JSON format. Returned data contain parsed WHOIS fields that can be easily understood by your application. Along with WHOIS API, we also offer WHOIS History API and Reverse WHOIS API.

Powered by Amazon Web Services With support for 1594 TLDs, our cloud-based API lets you quickly access any domain's WHOIS data through Bulk Whois Lookup, Newly Registered Domains, Dropped Deleted Domains, Expiring Domains and Whois Database Download.
Our Services Price Order
1000 WHOIS Lookup API Queries $2 Details
1000 WHOIS History API Queries $5 Details
1000 Reverse WHOIS API Queries $10 Details
Newly Registered Domains Database $495 Details
Whois Database [645 Million Domains] $10,000 Details

Keyword: PORT51

Reverse Whois » KEYWORD [port51 ]  { 17 domain names }


NumDomain NameRegistrarCreatedUpdatedExpiry
1port51.bizMarkMonitor Inc.7 Sep 201114 Sep 20136 Sep 2017
2port51.comGoDaddy.com, LLC28 Oct 202026 Nov 202428 Oct 2026
3port51.infoMarkMonitor Inc.7 Sep 20116 Aug 20167 Sep 2018
4port51.mobiMarkMonitor Inc.7 Sep 201117 Aug 20167 Sep 2018
5port51.netMarkMonitor Inc.7 Sep 201125 Jun 20177 Sep 2018
6port51.orgAmazon Registrar, Inc.9 Apr 202514 Apr 20259 Apr 2026
7port51.org.ukMarkMonitor Inc.7 Sep 20116 Aug 20167 Sep 2018
8port51.devGoogle, Inc.12 Jun 202324 Jul 202512 Jun 2025
9port51.ru-3 May 2023-3 May 2026
10port5150.comGoogle, Inc.10 Apr 201510 Apr 201510 Apr 2016
11port511.comGoDaddy.com, LLC26 Jan 20171 Oct 202226 Jan 2027
12port5150.exposedNameCheap, Inc.17 Dec 201817 Dec 201817 Dec 2019
13port514.comSquarespace Domains LLC18 Apr 202518 Apr 202518 Apr 2028
14port514.netPorkbun, LLC24 Sep 202024 Sep 202024 Sep 2021
15port51lending.comGoDaddy.com, LLC24 Oct 20244 Jan 202524 Oct 2026
16port51lending.orgAmazon Registrar, Inc.25 Nov 202410 Dec 202425 Nov 2025
17port51lending.netAmazon Registrar, Inc.25 Nov 202417 Aug 202525 Nov 2025

Reverse Whois Demo

Reverse Whois API

You can fetch the above results using our Reverse Whois API.

https://api.whoxy.com/?key=xxxxx&reverse=whois&keyword=port51

Reverse Whois API lets you perform a comprehensive search on our database, to find domains owned by a company or person.
You just need to enter search terms such as the name, email or company, and you can find all the domains they ever owned.
If your search returns no results, you will NOT be charged any API queries. You are charged only on successful queries.

Sample Output: JSON SchemaXML SchemaJSON Live ResultsXML Live Results

Reverse Whois Pricing Total API Calls Price CPM Purchase
200 Reverse Whois API Queries 200 $2 $10.00 Order Now
1,000 Reverse Whois API Queries 1,000 $10 $10.00 Order Now
10,000 Reverse Whois API Queries 10,000 $100 $10.00 Order Now
50,000 Reverse Whois API Queries 50,000 $400 $8.00 Order Now
250,000 Reverse Whois API Queries 250,000 $1,500 $6.00 Order Now
1 Million Reverse Whois API Queries 1,000,000 $4,000 $4.00 Order Now
5 Million Reverse Whois API Queries 5,000,000 $10,000 $2.00 Order Now