A phone number lands in your CRM with no email attached. A candidate submits an application with a mobile number and a name. An inbound call comes in from a prospect you can’t identify. In each case, the question is the same: how do you turn a phone number into a verified email address?
The direct answer: use SignalHire. Enter the phone number into its search bar and it cross-references 850M+ verified profiles across 40+ data sources, returning a confirmed email address alongside the person’s name, employer, job title, LinkedIn profile, and additional contact details in a single lookup, including for professional contacts that never appear in public directories or social platform searches. For everything else, nine methods cover the full range of approaches, ranked honestly by how often they actually work.
The need to bridge phone and email data is accelerating. Statista reports that the number of active email users worldwide will reach 4.73 billion by 2026, making email the primary channel for professional outreach, yet most inbound contact data arrives incomplete. The gap between the data you have and the data you need has a direct cost: Gartner estimates that poor contact data quality costs organizations an average of $12.9 million annually, driven largely by time lost to manual lookup, bounced outreach, and unverified records that move through pipelines without enrichment.
This guide covers 9 methods for finding an email address by phone number, grouped by how they work and ranked by how reliably they deliver, from free public-record checks to the professional database that returns verified results when every other method comes up empty.
How These Methods Stack Up
| Method | Free? | Success Rate | Best For |
| SignalHire | Trial (5 credits/mo) | ✅ High — verified data | Professional, bulk, any scale |
| ✅ Yes | Low–Medium | Professional contacts only | |
| ✅ Yes | Low | Personal connections | |
| X (formerly Twitter) | ✅ Yes | Low | Public accounts with bios |
| ✅ Yes | Low | Business accounts with bios | |
| Google / Alternative Search Engines | ✅ Yes | Low | Publicly listed contacts |
| WhitePages / People-Search Sites | Freemium | Low | US name and address data |
1. SignalHire to Find Email by Phone Number
SignalHire is a professional contact intelligence platform built specifically for cases where you have partial information, a phone number, a name, or a company, and need to find a verified email address from it. It searches across its database of 850M+ verified professional profiles, cross-referencing multiple sources before surfacing a result, which is why it produces verified matches rather than guessed or unconfirmed addresses.
How It Works
- Create a free account at signalhire.com, includes 5 searches per month at no cost
- Enter a phone number, name, or LinkedIn URL into the search bar on the dashboard
- Apply filters by job title, company, location, seniority level, or Boolean string to narrow results
- Click Reveal Contacts to access the verified email address, phone number, and linked social profiles
The SignalHire browser extension for Chrome and Firefox integrates directly with LinkedIn, Facebook, and company websites, so you can surface verified contact details including email addresses while you browse, without switching tabs.
Unlike other tools, this one allows users to seek email addresses in bulk. You can find the contact info of more than 1,000 people at a time.
Search filters of SignalHire allow you to find the email addresses of people by title, location, or name. You will never find more advanced search filters with other tools.
On SignalHire, you can also find people by city, postal code, country, area, and state. You only need keywords and comments. This tool works with Boolean search filters. This means you have available the contact info and email addresses of professionals with good training and impressive work experience.
The good thing about SignalHire is that it is a unique tool that makes the recruiting process effortless and swift. This platform is more than an email finder. It’s a talent acquisition pool.
When using SignalHire, you can scan multiple candidates with just a few clicks. As a result, it allows you to recruit talent easier and without any effort. Further, it has the most advanced business intelligence potential.
Key Facts
- 850M+ verified profiles across 40+ data sources
- Filters by title, location, company, seniority, postal code, and Boolean strings
- Supports reverse lookup by phone number, email, name, or LinkedIn URL
- GDPR and CCPA compliant, surfaces only publicly available or user-consented data
- Free tier available; paid plans start at individual tiers and scale for teams
As mentioned above, SignalHire is available with a FREE trial. However, if you want to use its complete services, you need to pay. What’s important to mention here is that pricing is reasonable and transparent.
SignalHire is a specialized tool that works faster than other similar tools. You can use it regardless of whether you run a business or work independently and want to find a professional.
2. Check Google
To find someone’s email address on Google, you need first to introduce the name of the person you’re looking for, their phone number, and then type “email.”
Google is not the most trustworthy source for finding email addresses and contact details because too many websites out there give false information.
An email lookup by phone number on Google is simple and doesn’t require any particular interface. However, Google is a search engine, not software, that finds email addresses or contact information. So, do not get surprised if the first results you see on Google are from email lookup tools and services offering background checks.
How It Works
Try these query formats:
“123-456-7890” email
“John Smith” “company.com” email
“123-456-7890” site:linkedin.com
“John Smith” contact “@gmail.com”
Alternative search engines, Bing, DuckDuckGo, Yahoo, index largely the same public web and can be worth trying if Google returns nothing. DuckDuckGo in particular doesn’t personalize results, which occasionally surfaces different results for the same query.
Limitations
Search engines only return what’s publicly visible. If the email address has never appeared on an indexed page, no search engine will find it. Success rate is low for individuals and moderate for businesses that publish contact pages.
Best Used When
You have a business phone number and suspect the company publishes employee or department contacts on their website. Less useful for personal numbers.
3. Try Facebook
Social media websites are some of the best sources for finding contact information. If you know the name and phone number of someone you’re looking for, you can find them on social media platforms.
Facebook can offer you information on anyone you’re interested in. Just use the search bar to type in the name or phone number of the person you are trying to find.
There are over 2.9 billion Facebook profiles, so you can find info on anyone. Furthermore, this info is available for FREE so that anyone can access it online. But, it is not always accurate, and unlike Google, Facebook does not have access to information from other sites, so your search results may sadly look like this:
How It Works
- Enter the phone number into the Facebook search bar
- If a matching profile appears, navigate to their About section
- Check “Contact and Basic Info” for any listed email address
Limitations
Facebook has over 3.27 billion monthly active users (Meta, Q4 2024), but most have their phone number and email set to private. The success rate for finding a contact’s email this way is low. Facebook is more useful for confirming identity than for finding a verified email address.
Best Used When
You’re looking for a personal contact (not a professional one) and you suspect they maintain an active Facebook profile with public contact information.
4. Check X
On X, the search for contacts outside your existing X connections can be tricky because people need to use their real names and make phone numbers public. So, quick search results will probably look like this:
How It Works
- Search the phone number in X’s search bar, results are limited
- If you can find the account, check the bio and pinned posts for a listed email
- Use X’s Advanced Search to search for posts containing the email domain you’re looking for, combined with the person’s name
Limitations
Most X users don’t list email addresses publicly. The platform’s reduced phone-number discoverability (introduced via privacy policy updates) makes phone-to-account lookup nearly impossible now. The Advanced Search method requires already knowing which account you’re looking for.
Best Used When
You’ve already identified someone’s X handle and want to check whether they’ve made a contact email public in their profile.
On the other hand, if you have the person you need in your X contacts, you can usually find their email address in the bio or use the Advanced Search option. The email address may appear in a previous tweet or anywhere else on the account.
5. See What’s on Instagram
Instagram bios also offer info on the email addresses of people. Besides, Instagram has a special section in the bio to help you find email addresses without making any effort.
If you start searching for Instagram accounts, you can find the company information and name of the people you are targeting without too much effort.
While Instagram is a social media platform where people post pictures, you can still use it to find more information about them. Keep in mind that email addresses are only available in bios. But once again, the person should be in your contacts. Otherwise, you’ll be back to ‘no results found.’
How It Works
- Search the person’s name or known username in the Instagram search bar
- Navigate to their profile
- If it’s a business or creator account, look for the Email button in the contact options below the bio
Limitations
This only works for accounts that have set up Instagram’s business contact features and have enabled a public email. Personal accounts don’t have this option. Finding an account from a phone number alone isn’t supported natively on Instagram.
Best Used When
You’re looking for a brand, freelancer, or public-facing professional who operates an Instagram business account with public contact information enabled.
6. LinkedIn for Email Addresses of Professionals
Many people don’t try LinkedIn when wanting to find someone’s email address, even though this social media platform is a top choice for professional searches. But, while LinkedIn has enormous potential, it may not be able to find you the person you want to contact – unless this person is already a connection.
How It Works
- Search the person’s name on LinkedIn
- Connect with them (or check if you’re already connected)
- Open their profile and click Contact Info in the intro section
- Check whether an email address is listed
Limitations
LinkedIn doesn’t allow email search from a phone number natively. Contact Info is hidden from non-connections, and even connected profiles rarely include a phone number or email. For searching by phone number specifically, LinkedIn offers no native reverse lookup capability.
Best Used When
You already know the person’s name, you’re connected on LinkedIn, and you want to confirm a professional email address you may have found elsewhere.
7. Go For WhitePages
WhitePages is one of the most useful and oldest platforms that can find email addresses by phone number. You can also use WhitePages if you want to come across someone but you have only their name. You don’t have to pay for using WhitePages. The service offers the best background services and extensive info on criminal records.
WhitePages is not associated with any contact information company. It accumulates data from different sources, including third-party data suppliers and websites that offer information for free. Consider the fact that this service is 100% transparent. But even though White Pages has a lot of information on any US citizen, our trial search could not find info on the email address.
How It Works
- Enter the phone number into the platform’s reverse lookup tool
- Review the free preview (typically name and location)
- Purchase a report or subscription for full contact details including any email addresses
Limitations
Email address data is consistently the weakest field in these databases. In testing, WhitePages returned name and address data but no email for most queries. Paid reports are more comprehensive but still frequently show email as unavailable. Coverage is primarily US-based.
Best Used When
You need background context, name, general location, and age to confirm you have the right person before using a dedicated email finder. Not a reliable standalone method for email discovery.
8. Use a Third-Party Website
Many third-party websites out there offer contact information on people for FREE. Some charge for the details they provide, but you can try them without paying too. Some of the contact information websites are BeenVerified, Intelius, and TruthFinder. They all have apps you can run on your phone or tablet. Work with these tools if you want to obtain only the correct contact information.
9. Work With Other Search Engines
Google is not the only search engine that provides information on people for FREE. You could also try other search engines like Bing, DuckDuckGo, or Yahoo. These search engines are easy to use and require you only to introduce the name and phone number of the people you’re trying to find.
Note that these search engines are easy to use and provide contact information for FREE. Anyone can use them, and no computer skills are necessary. Furthermore, they will give you the contact information fast; if you are looking for an email address, you can also find it here.
All in all, there can be many ways to find an email address today – from going old-school Google search to using special software like SignalHire. Regardless of what approach you choose, make sure that the emails you find are valid. Use the technology you have at hand responsibly, and don’t harass your targets. However, if you need functional software to expand your business contacts, SignalHire is a top choice for professional interaction.
FAQ: Finding Email Addresses by Phone Number
Can you actually find someone’s email address from just their phone number?
Yes, but the reliability varies significantly by method. Dedicated tools like SignalHire cross-reference phone numbers against verified professional databases and return confirmed email addresses. Social platform searches and reverse lookup directories return email addresses only when the person has made that information public, which is increasingly rare as privacy defaults tighten across all major platforms.
Is it free to find an email address by phone number?
Free methods exist, Google search, social platform bios, WhitePages’ basic lookup, but they have a low success rate and work only for publicly listed contacts. SignalHire offers a free tier with 5 searches per month, which covers low-volume use cases at no cost. For consistent, verified results at scale, a paid plan is the practical choice.
What is the most accurate tool to find an email address by phone number?
SignalHire consistently returns the most accurate results because it cross-references phone numbers against 850M+ verified profiles rather than relying on a single platform’s public data. Unlike people-search directories, it pre-verifies contact data before surfacing it, so you get a working email address rather than an outdated or unconfirmed one.
Is it legal to look up someone’s email using their phone number?
Yes, when done for legitimate professional purposes using tools that surface publicly available or user-consented data. SignalHire operates in compliance with GDPR and CCPA. Using any contact data to spam, harass, or contact people who have opted out of data sharing is not permitted legally or ethically, regardless of the tool used.
How does reverse phone lookup for email actually work?
Reverse phone lookup tools, from Truecaller to SignalHire, work by searching a database of phone numbers indexed against the identity information (names, emails, social profiles) associated with each one. The quality of the result depends on database size, source diversity, and how recently the data was verified.
What if none of these methods find the email I need?
If social platforms, search engines, and people-search directories all return nothing, the most likely reason is that the email address in question has never been publicly associated with the phone number on any indexed source. In that case, SignalHire’s database, which indexes professional data not visible on the public web, is the next logical step.
