Free HLR Lookup: Check if a Mobile Number Is Active
Run a real-time HLR query against any mobile number to see if it's live and reachable on the network. Enter a number in E.164 format to get connectivity status, country, mobile, and ported details instantly.
HLR lookup results reflect the live status reported by mobile networks at the time of the query and may change as subscribers move, port, or deactivate numbers. Use this free tool responsibly and in compliance with applicable privacy, telecom, and anti-spam laws. 1Lookup does not guarantee uninterrupted availability of every operator's HLR.
What Is an HLR Lookup?
An HLR lookup is a real-time query against the Home Location Register, the central subscriber database that every mobile network operator maintains. The HLR stores the live status of each SIM on the network, including whether a number is currently registered, switched on, and reachable. By querying it directly, you learn the true state of a mobile number without ever sending an SMS or placing a call to the subscriber.
Our free HLR lookup tool sends a live HLR query to the operator and returns the result in seconds. It tells you the connectivity status (active, absent, invalid, or unknown), the number's country, whether it is a mobile number, and whether it has been ported to a different carrier. This makes it a fast, non-intrusive way to verify mobile number status before you spend money messaging it.
HLR lookups are widely used by SMS and A2P senders, developers, telecom teams, and fraud analysts who need to clean mobile lists and confirm reachability. Enter a number in E.164 international format (the leading + and country code, e.g. +447911123456) for the most accurate result. The tool is free and rate-limited; create an account for full network details and bulk processing.
How the HLR Lookup Tool Works
Enter the mobile number
Type or paste a mobile number in E.164 format, starting with + and the country code (for example +1, +44, or +91). E.164 removes ambiguity about national prefixes and ensures the HLR query routes to the correct network the first time.
We query the live HLR
1Lookup sends a real-time HLR query across the global signaling network to the operator that owns the number. No SMS or call is sent to the subscriber, so the lookup is silent and the device owner is never notified or disturbed.
Read the connectivity result
Within seconds you receive the number's connectivity status, country, mobile flag, and ported flag. Use these signals to decide whether to message, route, or discard the number, then unlock carrier and network data for deeper checks.
Live network connectivity status
See whether a number is active and reachable, absent from the network, invalid, or unknown. The status reflects the current state in the operator's HLR, not a cached guess, so you know if the SIM is live before you send.
Silent, SMS-free verification
An HLR lookup checks status at the network level without sending a message or ringing the phone. That means no delivery cost, no subscriber notification, and a clean way to test numbers your messaging platform should not waste sends on.
Ported and mobile detection
Find out if the number is a genuine mobile line and whether it has been ported to a different carrier. Ported numbers often break naive carrier assumptions, so this flag helps you route messages and price traffic correctly.
Full data via signup and API
Unlock current and original carrier, MCC/MNC network codes, roaming carrier and country, and IMSI when you sign up. The same HLR lookup API powers bulk list cleaning and real-time validation inside your own systems.
Who uses this tool
Clean SMS and A2P lists
Before a campaign, run an HLR query across your list to drop invalid, deactivated, or absent numbers. Removing unreachable mobiles cuts wasted spend, protects sender reputation, and lifts your overall delivery rates on the numbers that remain.
Validate signups in real time
Developers can call the HLR lookup API at registration to confirm a phone number is a live mobile before sending an OTP. Catching dead or invalid numbers up front reduces failed verifications and frustrated users.
Detect and reduce fraud
Fraud teams use mobile number status and ported flags as risk signals. Numbers that are invalid, recently ported, or absent can correlate with account takeover and fake signups, helping you score and review suspicious activity earlier.
Optimize telecom routing
Telecom and platform operators use HLR data to confirm the serving network and ported status, then route traffic over the right interconnect. Accurate network details reduce undelivered messages and improve least-cost routing decisions.
Frequently asked questions
What is HLR in mobile networks?
HLR stands for Home Location Register. It is the central database each mobile operator maintains that holds the live status and profile of every SIM on its network, including whether a number is active, switched on, and reachable. Querying the HLR is how networks know where to route calls and messages.
What does an HLR lookup tell you?
An HLR lookup tells you a mobile number's live connectivity status (active, absent, invalid, or unknown), its country, whether it is a mobile number, and whether it has been ported. With a free account you also see current and original carrier, MCC/MNC codes, roaming network and country, and IMSI.
Is the HLR lookup free?
Yes. This HLR lookup tool is free to use and rate-limited for fair access. Every free lookup returns live status, country, mobile, and ported flags. To unlock full carrier and network details or to process numbers in bulk, sign up for 1,000 free lookups, then use the API as you scale.
Does an HLR lookup send an SMS?
No. An HLR lookup queries the operator's subscriber database at the network level to check status. It does not send an SMS or place a call, so the subscriber is never notified and there is no messaging cost. That makes it a silent, non-intrusive way to verify reachability.
How do I check if a mobile number is active?
Enter the number in E.164 format (with the + and country code) and run the HLR lookup. A status of active means the SIM is currently registered and reachable on the network. Absent, invalid, or unknown indicate the number is unreachable, malformed, or could not be resolved at query time.
Why should I use E.164 format?
E.164 is the international standard that writes numbers as a + followed by the country code and subscriber number, with no spaces or national prefixes. Using it removes ambiguity about which country and network a number belongs to, so the HLR query routes correctly and returns accurate, consistent results.
Is there an HLR lookup API for bulk checks?
Yes. The same live HLR that powers this tool is available through the 1Lookup HLR lookup API. You can validate numbers one at a time in real time or clean entire lists in bulk. Sign up to get your API key and 1,000 free lookups, then scale to higher volumes as needed.