Bulk-check Facebook Numbers
Reach 3B+ social users precisely and close the loop on Meta ecosystem acquisition
Upload up to 1 million numbers per batch. Two-layer checks (carrier validation + Facebook registration) finish a full screening in about 3 minutes.
Capability Track
phone-list.txt
+44 7……2484
+62 8……9017
+55 1……6723
√ One number per line in TXT
Valid filtering accuracy ≥98%
Average speed: 3 min / 1M records
Export TXT/CSV/Excel
Facebook Validity Check
Facebook UID Check
Facebook Gender Check
Capabilities
What can GeekNums check on Facebook?
Valid Filter
Check the number is real + whether it's registered on Facebook + whether it has a username.
Number status
RegisteredNot registered
Email Filter
Quickly verify email validity and accurately check whether the email is linked to a registered Facebook account.
Activity
UID Check
Find the Facebook account behind a phone number and retrieve its UID precisely.
AI profile sample
25-35Interests4 Steps
Bulk-check Facebook in just 4 steps
Use case: find out which numbers are on Facebook.
Generate Numbers
Use the number generator to create numbers for your target region (or upload your own numbers directly).
Upload Numbers
TXT/CSV/Excel supported, up to 1 million records per upload.
Two-layer Validity Check
1. Check the number really exists
2. Check Facebook registration
Export Results
Download the completed file and export every filtered result in bulk.
Q&A
FAQ
190+ countries/regions worldwide (excluding mainland China). Core high-penetration markets include India, the US, Brazil, Indonesia, Mexico, the Philippines, Vietnam, Nigeria, Egypt and Turkey. India, Brazil, Indonesia and the Philippines have the largest FB user bases, with the most complete accuracy (≥98%) and social data. Registration rates vary by country, so test a small sample first before planning large-scale filtering.
Results export as TXT/CSV/Excel and can be imported into the Messenger API or third-party FB marketing tools (such as ManyChat or Chatfuel). Note that Messenger has a strict 24-hour messaging window and anti-spam policies. Prioritize "valid + highly active" data, start conversations from your Facebook Page, or use Click-to-Messenger ads to open compliant conversations. Avoid sending frequent unsolicited messages to low-activity or zombie accounts to stay clear of Meta's risk controls.
Facebook ads run inside the platform, rely on Meta's algorithm, charge per impression or click, and suit brand awareness. Facebook filtering enables direct outreach: by verifying the FB registration behind each number, you can contact users via Messenger DMs, group invitations or Marketplace without paying for ads, with more direct engagement and higher conversion. They complement each other: ads build breadth and brand, filtering drives depth and deals.
