
Completed
Posted
Paid on delivery
I need accurate, up-to-date mobile phone numbers for an existing contact list covering Dubai, Singapore, Ho Chi Minh City and Bangkok. You are free to work with Lusha, ZoomInfo or [login to view URL]—whichever combination lets you reach the highest hit-rate and confidence level. The final hand-over should be a spreadsheet (Excel or Google Sheet) that retains my current columns and adds one new column with the verified mobile number for each person. If a number truly cannot be located, simply note “Not Found” so I can see where follow-up may be required. I will review deliverables for accuracy by sampling random entries; consistency across all four cities is important, so please double-check international dial codes and number formatting before delivery.
Project ID: 40656294
17 proposals
Remote project
Active 7 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

With over 8 years of experience in data analysis and management, I have an expert understanding of the very tools you mentioned such as Lusha, ZoomInfo, and Clay.ai. I've previously utilized these platforms to source quality data for my clients with a high hit-rate and confidence level. In this project, I'd dedicate myself to ensuring not only the accuracy of the mobile phone numbers but also consistency across all four cities - from international dial codes to number formatting. Having handled over 900 projects successfully, it's evident that I not only understand how vital data integrity is but also prioritize it in my work. This project's reliance on statistical identification and meticulous documentation aligns perfectly with my skill set that combines a fluency in Python, Advanced Excel, Pandas library, SQL and web research for providing optimized results. Furthermore, since communication can often entail varying attention to detail between regions, I understand how important it is for your data to remain consistent. This is where my experience and long-term dedication come into play. Your satisfaction as a client is key to me, therefore you can expect clear updates, regular communication and reliable deadline management throughout our partnership. Let's connect and streamline your contact list delivering the highest-quality
$30 AUD in 1 day
5.6
5.6
17 freelancers are bidding on average $23 AUD for this job

Hello we can get phone number from all country and also start work right now just give us one chance we will do our best awaiting your answer,thx………….
$20 AUD in 1 day
8.0
8.0

I can enrich the records using Lusha, ZoomInfo, Clay, and secondary cross-checks where appropriate, carefully matching each person to the correct company, city, and country. I’ll preserve your existing columns, add the verified mobile-number field, mark genuinely unavailable numbers as “Not Found,” and standardize international formatting for Dubai, Singapore, Ho Chi Minh City, and Bangkok.
$30 AUD in 1 day
6.9
6.9

Hello, I can get you mobile numbers for the provided list of contacts, I'll use Apollo io. Let's connect. Thank you.
$20 AUD in 7 days
6.3
6.3

Hello, The key part of this project is **verifying international mobile numbers across four cities while keeping your existing spreadsheet structure intact**. I can help you handle this accurately and efficiently without overcomplicating the process. I have hands-on experience with **Excel, Data Collection, and Data Management**, including organizing large contact lists and cleaning records for consistent formatting. For your project, I would focus on sourcing verified numbers, checking country and city-specific dial codes, and updating the sheet with clear “Not Found” entries where needed, while making sure the final result is consistent and easy to review. I can start immediately and expect to complete this within 3 days. One detail I'd like to confirm before starting: **Should I prioritize the highest-confidence numbers only, or include lower-confidence matches when a direct verification isn’t available**? Best regards, Miguel
$30 AUD in 3 days
3.1
3.1

Hi, Most lists fail on consistency: phone formats and international dial codes vary by source, so hit-rate looks good until sampling reveals mismatches. I will prevent that by validating each number against country dialing rules for Dubai, Singapore, Ho Chi Minh City and Bangkok before delivery. I have led data-intensive integrations and contact enrichment projects while acting as CTO and Senior Software Engineer, including work on a payroll API and a mission-critical tax filing system where data accuracy was mandatory. For this task I will use Lusha and ZoomInfo and supplement with targeted web verification when needed, focusing on high confidence matches rather than bulk guesses. I will start by importing your existing contact list into a working Google Sheet, add a verification column for the mobile number, and run searches by name + company + city through Lusha/ZoomInfo. Every found number will be checked for country code correctness and normalized into a single format. If a number cannot be located I will mark it exactly as Not Found so you can see gaps at a glance. - Would you like results returned in Excel or Google Sheet format? - Do you want mobile numbers formatted with a plus sign and no spacing (e.g. +9715xxxxxxx) or spaced groups per local convention? Happy to connect for a short call to walk through the approach. Thomas Beigbeder
$20 AUD in 1 day
2.7
2.7

You're looking for mobile numbers across four cities, but the real challenge is avoiding false positives when tools like Lusha or Clay return outdated or shared numbers. I'd cross-check each hit against LinkedIn activity, recent company filings, or even local business directories to confirm the number is still tied to the right person. Most people just dump whatever the API returns, but international dial codes and local formatting rules trip up even experienced collectors. Singapore numbers start with 8 or 9, Dubai mobiles use 50, 52, 55, or 56, and Bangkok numbers can be 6 or 9 digits after the area code. I'll normalize everything to E.164 format so your CRM or dialer won't reject them. I'm ready to start immediately.
$20 AUD in 3 days
0.0
0.0

Hello, Main risk is mismatched formatting and outdated contacts across regions, which inflates false positives when sourcing mobile phone numbers for Dubai, Singapore, Ho Chi Minh City and Bangkok. I will prioritize accuracy and consistent international dial codes to prevent that. I have sourced direct mobile numbers for sales and executive lists in APAC and MENA using Lusha, ZoomInfo and local telecom registries, combining API lookups with manual validation against LinkedIn and company sites to reach high confidence. I will keep your current columns intact and add one new column with the verified mobile number for each person. If a number cannot be located I will enter Not Found so you can identify gaps immediately. My first step is a small verification pass on a random sample of 25 entries to confirm hit-rate and formatting rules for each city, then proceed to full enrichment. I will normalize numbers to include country code and a single formatting style across the sheet and note source confidence per record. - Would you like Excel or Google Sheet for delivery and do you want an extra column noting the source (Lusha, ZoomInfo, manual)? - May I have a sample file or 25-row extract to run the initial verification before I proceed? Happy to connect for a short call to walk through the approach. Christopher
$30 AUD in 1 day
0.0
0.0

Melbourne, Australia
Payment method verified
Member since Sep 11, 2019
$10-30 AUD
$10-30 AUD
$10-30 AUD
$30-250 AUD
$10-30 AUD
$10-20 USD
$2-8 USD / hour
₹12500-37500 INR
$22-40 USD / hour
$40-70 USD
₹750-1250 INR / hour
₹100-400 INR / hour
₹12500-37500 INR
$250-750 USD
$15-25 USD / hour
$10-60 USD
₹12500-37500 INR
$1500-3000 USD
₹750-1250 INR / hour
$100-175 USD
$15-25 USD / hour
₹750-1250 INR / hour
min ₹2500 INR / hour
£250-750 GBP
₹12500-37500 INR