We're Premium Phone Append, a trusted phone append company and sister company of Premium Data Append, based at 2102 Business Center Drive, Irvine, CA 92612. We help businesses across all kinds of industries turn incomplete lead lists into phone numbers their sales teams can actually call and convert.
Phone append matches verified phone numbers to the names and addresses you already have. We check your records against multiple databases and return mobile and landline numbers for your customer and prospect lists within 24 hours, so your team gets fewer dead ends and more answered calls. Read our blog post: What Is Phone Append?
Want to add or update verified mobile numbers for your customers, prospects, and leads? We'll turn your list around within 24 hours, fully TCPA-compliant, with up to 99% data accuracy, starting at just $0.02 per match.
4.9 from 620+ clients
TCPA · DNC · CCPA compliant
SOC 2 secured
Match Rate
Cell Numbers
Average Delivery
Trusted by data-driven teams in real estate, insurance, agencies & B2b
No quote process. No negotiations. No hidden fees. You only pay for successful matches.
Our 5-step phone append process is built for high-volume mortgage and debt operations — not generic marketing databases.
| Premium Phone Append | Competitor A | Competitor B | |
|---|---|---|---|
| Match Rate | 99% | 65% | 75% |
| Turnaround | 24 Hours | 5-7 Days | 3-4 Days |
| Data Source | 500+ Million | 15M | 25M |
| Price / Record | $0.02 | $0.06 | $0.03 |
Mortgage leads go cold in under 5 minutes. Debt inquiries stop responding after day one. Bad phone data doesn't just waste dials — it burns the budget you already spent to get those leads.
Teams buy expensive leads, then discover key records are incomplete or no longer reachable. That delays follow-up and burns the budget.
When a team has to search for valid contact data, competitors get there first. That is costly in mortgage and debt campaigns
Calling unverified numbers can create operational and legal exposure. Clean processes and cleaner data reduce that risk.
Our 5-step phone append process is built for high-volume mortgage and debt operations — not generic marketing databases.
Securely upload your LendingTree leads, Bankrate leads, or debt inquiry lists.
We cross-reference against 500+ million verified numbers, prioritizing mobile for immediate contact.
Remove inactive numbers, verify cell vs landline, ensure TCPA compliance, flag high-intent prospects.
Direct integration with Encompass, Convoso, Five9, or your CRM.
Customer data loses value when you can't reach the people in it. Records get outdated, phone numbers are never collected, and contact lists end up with gaps. Premium Phone Append closes those gaps. We are a phone appending company focused on one thing: adding phone numbers to your existing customer records so your business can start real conversations again.
Phone append is the process of matching the customer information you already have, such as names and mailing addresses, against reliable data sources to find the phone numbers connected to each person. Instead of starting over with new leads, you get more out of the customers already in your database.
Step 1: You send your customer file.
Share your list in a common format such as Excel or CSV. It doesn't need to be perfect. Customer data often arrives with inconsistent formatting, combined fields, or missing details, and we're used to working with it.
Sample screenshot raw customer file:

Step 2: We clean and standardize your data.
Before any matching starts, our team organizes your records into a clean, consistent structure. We separate combined fields, correct formatting issues, and prepare each record for accurate matching. Better input leads to better results.
Step 3: We match and append phone numbers.
Each record is checked against our data sources using the identifying details you provide. When we find a confident match, we add the phone numbers linked to that contact. Where more than one number is available, we can include multiple numbers per record.
Step 4: We identify the line type.
Every number we return is labeled as wireless, landline or VoIP. This helps your team choose the right outreach approach and supports compliance with telemarketing rules like the TCPA and Do Not Call regulations.
Step 5: You receive clean, organized data.
Your file comes back in an easy-to-use format with your original records kept intact and the new information added alongside them. Records we couldn't confidently match are left blank, never filled with guesses, so you always know which data you can trust.
See after appending screenshot:

Phone append is our specialty, but we can also provide email append and other data append services on request. Let us know what your project needs, and we'll include it in the same delivery.
Businesses use our phone append services to reactivate old leads, enrich marketing lists, update outdated customer records, reconnect with past clients or donors, and support sales and customer service teams. Any organization holding customer data without reliable phone numbers can benefit.
Your customer list is more valuable than you think. Send us your file, and we'll return it with the phone numbers you need to reconnect.
Specialized phone appending engineered for lenders and debt settlement companies who can't afford to lose time-sensitive leads.
Stop wasting $30–$100 per LendingTree lead. Append verified mobile numbers to purchase, refinance, and pre-qualification leads in 24 hours.
Stop losing $75–$150 leads to non-responses. Append verified mobile numbers to debt relief inquiries in 24 hours — so your team connects while the lead is still active. First to call wins 82%.
Verified phone data works anywhere contact rates drive revenue.
"Premium Phone Append is a game-changer for our mortgage lead campaigns. We increased our contact rates from 18% to 73% in the first month. The ROI is incredible."

"We process 50,000 records monthly with Premium Phone Append. Their 95% hit rate is consistently accurate, and the cell numbers are high quality. Best in the industry, hands down."

"Fast turnaround, accurate data, and fantastic support. Premium Phone Append powers our entire multi-channel strategy. We couldn't scale without them."

Everything you need to know about phone appending — what to send, match accuracy, turnaround times, pricing, and TCPA compliance.
Phone append provides a current phone number for a contact record that is missing a number or has an outdated one.
Your data list must have First Name, Last Name, Address, City and Zip for every record. All five are required. Matching on full name and address is how we return the right person's current number, not a guess.
Every week. Many appending services refresh monthly or less, so their numbers can be weeks old by the time you dial.
Premium Phone Append offers an accuracy guarantee with straightforward, transparent pricing:
Match rates reach up to 99% on complete name and address files. Every match includes a confidence score so your team can dial the strongest numbers first.
Yes, on request. Phone append is our focus, and we add emails only when you include them in your order.
Yes, appending a phone number is legal. How you contact people is what's regulated. Every number comes with line type and Do Not Call status so your team can follow TCPA rules.
Pricing starts at $0.02 per matched record for volumes of 250,000 records a week. Unmatched records are free, and your first 1,000 records are free to test.
Batch files usually come back within 24 hours. Our live API returns a number the moment a new lead comes in.
Your file is transferred encrypted, used only to run your append, and deleted after your order is delivered. We never sell or share it.
Whether you need data appending guidance, custom solutions, or expert consultation — our team is ready to help you transform your customer database with confidence.