Check Zalo Account Registration
Reach Vietnam's 70M+ social users precisely
Upload up to 1 million numbers per batch. Triple checks (carrier validation + Zalo registration + user activity profile) 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
Covers all of Vietnam (+84, all carriers including Viettel, Vinaphone and Mobifone)
Export TXT/CSV/Excel and connect directly to ZOA and local Vietnamese SMS gateways
Zalo Check
Zalo Activity Check
Zalo Gender & Age Check
Capabilities
What can GeekNums check on Zalo?
Valid Filter
Verify Vietnamese numbers are real (invalid / suspended detection) + whether they're registered on Zalo + profile completeness.
Number status
MobileVirtual
Activity Filter
Active days and last online time.
Detection
Profile Filter
Account age and gender inference.
AI detection
25-35Female
Fast Gender Check
Quickly find Zalo accounts for phone numbers and identify gender.
Gender Filter
MaleFemale4 Steps
Bulk-check Zalo in just 4 steps
Use case: find out which numbers are on Zalo.
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 Zalo registration (activity, age, gender)
Export Results
Download the completed file and export every filtered result in bulk.
Q&A
FAQ
All major Vietnamese carriers: Viettel, Vinaphone, Mobifone, Vietnamobile and Gmobile. Coverage differs slightly (Viettel has better signal in remote provinces, Vinaphone has more urban users). GeekNums identifies the carrier automatically and supports filtering by carrier, so you can optimize campaigns for specific networks.
They complement each other, but Zalo is a must in Vietnam. WhatsApp has users there, but Zalo's local penetration is far higher; it's the first choice for daily communication, e-commerce support and government services. Many Vietnamese SMEs don't even have WhatsApp, but they all have Zalo. Use Zalo filtering to lock in core users first, then WhatsApp filtering as a supplementary channel for dual-platform coverage.
Facebook has a large user base in Vietnam, but social ties are weak and support-to-conversion paths are long. Zalo is Vietnam's "national app": users open it often, reply quickly, trust Official Accounts and can pay in one tap with ZaloPay, giving the shortest conversion path. Promoting local services to active Zalo users typically converts 2-3x better than Facebook. For e-commerce, fintech, local services and B2B companies entering Vietnam, Zalo filtering is the most precise and locally accepted way to acquire users.
