Industries

How can real estate teams check inquirer and listing contact details?

Check the email domain, phone number and network origin of each inquiry, see the carrier originally assigned to a US number block, and read the age and registrar of a listing site's domain. Brokers and property managers get facts to weigh before they reply or send money anywhere.

The problem

Inquiries on a listing arrive through forms and portals, and a share of them carry made up details. Following up takes agent time, so each unusable inquiry costs a showing slot or a callback.

The other direction matters too. Renters and buyers meet listing pages and payment instructions from unfamiliar sites, and a site registered a few days ago deserves more care than one that has been online for years.

Teams that handle many properties need the same check run the same way each time. A fact sheet per inquiry, with the domain, the number and the network in one response, keeps the follow up consistent.

The FBI Internet Crime Complaint Center received 9,359 real estate complaints in 2024, with reported losses of $173,586,820. 2024. FBI Internet Crime Complaint Center, 2024 Internet Crime Report, read 2026-10-18.

What LookValid does for this

LookValid products for Real estate
Check	What it gives you	Credits
Read the domain behind each inquiry	Reports disposable domains, free providers, role mailboxes and the MX, SPF and DMARC setup. It does not contact the mail server and cannot confirm that a mailbox exists.	1 credit per address checked
See who first held the number block	Returns the carrier originally assigned the US number block, with its rate center and state from the public NANPA reports. Ported numbers still show the original carrier, and Canada and the Caribbean are not covered.	1 credit per lookup (numbers outside the covered numbering plan areas are free)
Check how long a listing site has existed	Returns the registration, update and expiry dates, the registrar and the age in days from the registry's public RDAP service. A young domain is one signal to weigh, not a verdict.	2 credits per registered domain (unregistered domains are free)
Compare the network with the stated location	Returns approximate location, network owner and hosting or Tor flags for the address behind an inquiry, from open data.	1 credit per lookup

A real request and response

Pass the domain of a listing site and read back when it was registered and with whom. This is a real captured request and response.

POST /v1/domain-age

1{
2  "domain": "example.com"
3}

Response, captured 2026-10-18

1{
2  "found": true,
3  "data": {
4    "domain": "example.com",
5    "registered": true,
6    "created_at": "1995-08-14T04:00:00.000Z",
7    "age_days": 11387,
8    "updated_at": "2026-08-14T08:01:43.000Z",
9    "expires_at": "2027-08-13T04:00:00.000Z",
10    "registrar": "RESERVED-Internet Assigned Numbers Authority",
11    "status": [
12      "client delete prohibited",
13      "client transfer prohibited",
14      "client update prohibited"
15    ],
16    "rdap_server": "https://rdap.verisign.com/com/v1/"
17  }
18}

This is one real run of Domain Age against a fixed public input, captured 2026-10-18. Sources: RDAP from the registry (https://rdap.verisign.com/com/v1/), found through the IANA RDAP bootstrap file.

Questions

Does the domain age check tell me a listing is real?

No. It reports registry dates and the registrar for the domain. An old domain can host anything and a new one can be honest, so use the age alongside other facts.

Can I find who currently owns a phone number?

No. The carrier lookup returns the carrier first assigned the number block, and it marks porting as unknown.

Which country do the carrier results cover?

United States numbers only. Canada and the Caribbean are not covered.

Sources

FBI Internet Crime Complaint Center, 2024 Internet Crime Report https://www.ic3.gov/AnnualReport/Reports/2024_ic3report.pdf, read 2026-10-18

LookValid is run by Meralume Labs. It is not connected to, endorsed by or a partner of any company or product named on this page, and every product name belongs to its owner.

LookValid bills every lookup in credits from one shared balance, so one key covers each check on this page.

See Domain Age