How do I clean a real estate lead list before calling?

Export your lead list as a CSV from your CRM or lead source (Zillow, Realtor.com, your own website). Upload it to PhoneCheckr. The result file adds a Type column (mobile, landline, voip, or invalid) to every row, plus the carrier name. Filter out invalid numbers, route landlines to your voice dialing cadence, and send SMS only to mobile numbers. The process takes under ten minutes.

Can I text a real estate lead who gave me a landline number?

No. Landlines do not support SMS. If you send a text to a landline number, the message will either fail silently or generate an undeliverable report, depending on your SMS platform. For contacts with landline numbers, a phone call is the only channel available.

What percentage of real estate leads have mobile numbers?

This varies by source and audience. Leads from web forms and mobile-first platforms (Zillow, Google Ads) tend to skew heavily mobile, often 70–85%. Older database imports, cold lists, and certain commercial real estate contacts have a higher proportion of landlines. Running a PhoneCheckr validation before any campaign gives you the exact breakdown for your specific list.

Is it legal to text real estate leads?

Text messaging real estate leads is governed by the TCPA (Telephone Consumer Protection Act) and CTIA guidelines. You generally need prior express written consent before sending marketing texts. Compliance requirements are the same whether the number is mobile, landline, or VOIP. Validating line type does not replace consent requirements. Consult a legal advisor for your specific situation. What PhoneCheckr provides is the technical data (line type, carrier) to ensure you are sending to the right channel for each contact.

What is a VOIP number in a real estate lead list?

A VOIP number is one assigned over the internet rather than through a cellular carrier or physical telephone line. In a real estate lead list, VOIP numbers often come from Google Voice, Skype, or business phone systems. They may be legitimate contacts using a work line. Some are also disposable or forwarding numbers used by people who prefer not to give out their real mobile number. Treat VOIP leads with normal outreach but with lower conversion expectations than confirmed mobile numbers.

How much does it cost to validate a real estate lead list?

Bulk validation costs $0.01 per number. A list of 1,000 leads costs $10. A list of 10,000 costs $100. There is no subscription. You pay only for the numbers you validate.

Phone number validation for real estate: clean your leads before you call

Identify which leads have mobile, landline, or VOIP numbers before your next outreach campaign. Upload a CSV and get results in under two minutes.

Upload a CSV and validate your phone list

No account required · Results in under 60 seconds

Why real estate lead lists need phone validation

A typical real estate lead database is a mix of mobile, landline, and VOIP numbers, collected from web forms, purchased lists, open house sign-ups, and CRM imports from years of activity. From the digits alone, you cannot tell the difference between a mobile number you can text and a landline that will never receive an SMS.

Sending a text campaign to an unvalidated list means a predictable percentage of your sends will fail: numbers that don't exist, landlines that can't receive SMS, and disconnected numbers that generate delivery failures. Those failures cost money, and consistent high failure rates get your sending number flagged by carriers, hurting deliverability on your good contacts too.

Watch out

SMS platforms charge per send attempt, not per delivery. Sending to landlines and invalid numbers wastes budget on messages that will never be read.

What phone validation tells you about each lead

Running your lead list through PhoneCheckr gives you four data points for every phone number.

1
Line type: mobile, landline, voip, or invalid. This is the most important signal. Mobile numbers can receive both calls and texts. Landlines are voice-only. VOIP varies by provider. Invalid numbers are disconnected or never assigned.
2
Carrier name: which carrier currently holds the number. For mobile numbers, this tells you the network (AT&T, Verizon, T-Mobile, etc.). For VOIP, it identifies the provider (Google Voice, Twilio, etc.) which helps you assess contact quality.
3
Validity: whether the number is currently assigned to a carrier in the national database. Invalid numbers should be removed from your list entirely. They are unreachable by any channel.
4
Contact quality signal: a mobile number from a major carrier is a stronger contact signal than a VOIP number from a forwarding service. You can use this to tier your outreach priority before spending dial time on lower-quality leads.

How to clean your real estate lead list

1
Export your leads as a CSV. From your CRM (Follow Up Boss, LionDesk, HubSpot, Salesforce, or a simple spreadsheet), export your contact list with the phone number column included. Other columns (name, email, source, lead stage) are preserved and returned with the results.
2
Upload to PhoneCheckr. Drop the CSV onto the upload area. PhoneCheckr detects the phone number column and processes each row against the national carrier database. Large lists take a few minutes.
3
Download the enriched file. The result CSV has your original data plus a Type column and a Carrier column for each contact. Open it in Excel or Google Sheets.
4
Filter and segment. Filter the Type column: remove invalid rows, route landlines to a calling-only cadence, flag VOIP for review, and keep mobile numbers for SMS outreach. Import the cleaned segments back into your CRM.

Lookups are $0.01 per number. A list of 5,000 leads costs $50 to fully validate. Start your first upload here.

How to route leads by line type

Once your list is validated, the channel routing decision is straightforward.

Mobile numbers — eligible for both SMS and voice calls. These are your highest-priority contacts for text-based follow-up sequences. SMS open rates for real estate are consistently higher than email, and mobile numbers are the only contact type that supports the channel.

Mobile numbers are eligible for both SMS and voice calls. These are your highest-priority contacts for text-based follow-up sequences. SMS open rates for real estate are consistently higher than email, and mobile numbers are the only contact type that supports the channel.

Landline numbers are voice calls only. Do not include these in any SMS campaign. Route them to a calling cadence with messaging appropriate for a household or business phone, not a personal device.

VOIP numbers: evaluate by carrier. Google Voice and TextNow numbers can typically receive SMS. Numbers on Twilio or other business VOIP platforms may route to a shared phone system. For high-value leads, a voice call to confirm the best contact method is worth the extra step.

Invalid numbers: remove from your list. They are disconnected or unassigned. No outreach channel will reach them.

Common questions about real estate phone validation

How do I clean a real estate lead list before calling?
Can I text a real estate lead who gave me a landline number?
What percentage of real estate leads have mobile numbers?
Is it legal to text real estate leads?
What is a VOIP number in a real estate lead list?
How much does it cost to validate a real estate lead list?

Ready to clean your lead list? Upload a CSV and clean your lead list. Also see: check mobile or landline · phone validation for e-commerce