Identify the country, carrier, line type, and app registration status of any phone number — instantly. 200+ countries, 40+ apps, no sign-up required.
A phone number lookup is the process of extracting information about a phone number — such as its country of origin, mobile carrier, line type (mobile, landline, VoIP), and app registration status (WhatsApp, Telegram, Facebook, etc.). Unlike a reverse phone lookup (which identifies a person), our tool focuses on number intelligence: carrier detection, format validation, and cross-platform app presence checking.
| Information Type | What It Tells You | How We Detect It |
|---|---|---|
| Country | Which country the number belongs to | ITU-T E.164 country code database |
| Carrier / Operator | Which mobile network operator services the number | HLR (Home Location Register) lookup |
| Line Type | Mobile, landline, VoIP, or premium rate | SS7 signaling + number range analysis |
| WhatsApp Status | Whether the number is registered on WhatsApp | WhatsApp Business API + client detection |
| Telegram Status | Whether the number has a Telegram account | Telegram API verification |
| 40+ App Presence | Registration on Facebook, Instagram, Signal, Viber, etc. | Multi-platform API checks |
| Format Validation | Whether the number is in valid E.164 format | Regex + ITU-T standards |
| Activity Status | Whether the number is active, inactive, or recycled | Carrier HLR + network heartbeat |
Check if a phone number is registered on WhatsApp. Detect business accounts. No adding contacts.
Verify Telegram account registration status. Supports bulk API for teams.
Validate international phone format, detect country & carrier, convert to E.164 standard.
Calculate how much invalid phone numbers cost your SMS campaigns. Estimate cleaning savings.
Before launching an SMS or WhatsApp marketing campaign, verify your contact list. On average, 20-30% of phone numbers go inactive each year. A quick lookup identifies invalid, inactive, or landline numbers before you waste campaign budget on them. Learn how to clean your phone number list →
Building an app that needs phone number validation? Our phone verification API supports Python, Node.js, PHP, and Go SDKs. Look up carrier info, validate formats, and check app registration programmatically with webhook callbacks. API integration guide →
Got a call from an unknown number? Want to check if someone's number is on WhatsApp before messaging? Our free tools let you look up basic information about any phone number without notifying the owner. No sign-up, no login, completely free.
No. A "reverse phone lookup" finds a person's name and address from their phone number — this requires access to private databases and is usually a paid service. Our phone number lookup provides number intelligence: carrier detection, country identification, line type classification, and cross-platform app registration status. It tells you about the number, not who owns it.
Carrier detection uses HLR (Home Location Register) lookups which query the actual mobile network in real-time. This is the same technology carriers use for number portability. Accuracy exceeds 99% for active mobile numbers across 200+ countries.
Yes. Our Phone Number Format Checker is completely free and identifies country, carrier, and format validity for any number. App detection tools (WhatsApp, Telegram checkers) are also free for individual lookups. Bulk and API access are available for commercial use.
No. All lookups are performed server-side. Our tools query carrier databases and app APIs directly — the phone number owner is never notified. No messages are sent, no calls are made, and no contacts are added.
We support 200+ countries and regions including all of Southeast Asia (Thailand, Vietnam, Indonesia, Philippines), Middle East (UAE, Saudi Arabia), Latin America (Brazil, Mexico), Africa (Nigeria, South Africa), and all major developed markets. See the full breakdown in our phone number format guide.
Need to look up thousands or millions of phone numbers? Our bulk verification API processes 100K+ numbers in under 5 minutes. Upload a CSV file and get back carrier, country, line type, and app registration status for every number. Read the API integration guide →