---
title: Number Lookup
description: "Phonovation product documentation: Number Lookup."
---
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October 15, 2026
# Number Lookup
## Number Lookup queries mobile network data to tell you whether a number is valid and reachable, which network it belongs to, whether it has been ported and whether it is roaming.
Number Lookup queries mobile network data to tell you whether a number is valid and reachable, which network it belongs to, whether it has been ported and whether it is roaming.
**Validity**Spot invalid or disconnected numbers before you pay to message them.
**Porting**Know the current network, not just the original one.
**Roaming**See if the subscriber is abroad.
**Sync or async**Single checks in real time or bulk checks to a webhook.
## Ways to use it
| Method | Best for |
| --- | --- |
| Real-time lookup | Checking a number at sign-up or before a critical message. |
| Asynchronous lookup | Large batches, with results returned when complete. |
| Broadcast | Cleaning a contact list through the web interface. |
| Lookup logs | Reviewing the history of requests you have made. |
## Why it helps
- Improves delivery rates and reduces wasted spend
- Keeps CRM data clean
- Supports fraud checks (combine with Signals and Number Risk Score)
## Related
[Number activation state →](https://knowledgebase.phonovation.com/messaging-whatsapp/phono-msg-number-activation-state?hsLang=en)[Signals →](https://knowledgebase.phonovation.com/messaging-whatsapp/phono-msg-signals?hsLang=en)[Broadcast →](https://knowledgebase.phonovation.com/messaging-whatsapp/phono-msg-broadcast?hsLang=en)
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