This free Hong Kong HLR lookup shows whether a Hong Kong mobile number is active.
An HLR lookup asks a mobile number's own network whether the SIM is switched on and reachable. Enter a Hong Kong mobile number above, with Hong Kong already selected, and 1Lookup's free tool returns its status, its country and whether it was ported, without sending an SMS. It needs no signup.
Pick the country, then enter the number without the country code.
Free & rate-limited. No signup required to try.
Also try the Hong Kong phone number checker or the Hong Kong carrier lookup.
- Country code
- +852
- Mobile numbers
- 8 digits after +852, starting 5, 6 or 9
- Numbers it can check
- Mobile numbers only, because only mobile lines have an entry in a Home Location Register
- Written at home
- 5123 4567
- Written for apps and SMS
- +85251234567
- The result shows
- The connectivity status, the country, whether it is a mobile where the answer says, and the ported flag
An HLR lookup answers only for mobile numbers, so check that a Hong Kong number has the shape of a mobile before you ask.
Only mobile lines have an entry in a Home Location Register. These are Hong Kong's rules from the numbering data.
| Number | What the digits show | What the HLR lookup does |
|---|---|---|
| A Hong Kong mobile | A mobile number has 8 digits after +852, starting 5, 6 or 9. | Asks the network whether the SIM is on and reachable. Outside the US and Canada the answer usually comes live from the network. |
| A Hong Kong landline | A landline has 8 digits after +852, starting 2 or 3, such as +852 2XXX XXXX. | No status comes back, because a landline has no entry in a Home Location Register. Use the Hong Kong phone number checker for its line type. |
These are the answers an HLR lookup gives for a Hong Kong mobile number, and what to do with each.
The status is the headline of every result. A record read instead of a live query never says that the phone is on.
| Status | What the network is saying | What to do |
|---|---|---|
| Active / reachable | The SIM is registered on a network and can receive a call or SMS now. | Safe to message or call. |
| Temporarily unreachable | The number exists, but the phone may be off or out of coverage. | Keep it and retry later, because it is not a bad number. |
| No active line | The network reports no subscriber on this number. | Remove it from the list. |
| Invalid or not in service | The records have no assigned number like this one. | Remove it from the list, and check the digits first. |
| Assigned | A record shows the number is assigned, and it does not show that the phone is on. | Treat it as a number in use, and check its line type before you text it. |
| Unknown | The network gave no usable answer. | Treat it as unresolved, never as invalid, and check it again later. |
A Hong Kong mobile number is +852 followed by 8 digits, and the first one is 5, 6 or 9.
Written with the country code
- +852Country code
- 5Mobile start
- 123 45677 more digits
The +852 comes before the number and is dropped when you dial inside Hong Kong.
An HLR lookup of a Hong Kong mobile number travels to its network and stops before anything reaches the phone.
This is the path one lookup takes. Outside the US and Canada the answer usually comes from the network that holds the number, which is why it says whether the SIM is on right now.
- You enter the numberType it the way it is written at home, such as 5123 4567, or paste it with +852. It has to be a mobile.
- Its format is checkedEach type of number has its own rules. A mobile needs 8 digits after +852 and starts with 5, 6 or 9 at home.
- The number's own network is askedThe query goes to the network that holds the number and stops before any message is delivered.Stops here: no SMS is delivered and the phone never rings.
- You see the statusActive, temporarily unreachable, no active line or unknown, with the country and the ported flag.
A Hong Kong mobile number has 8 digits after +852 and starts with 5, 6 or 9, so any other length is not a valid mobile.
These lengths come from the numbering data for Hong Kong. Hong Kong has no area codes and no leading 0, so a number reads the same at home and abroad. A few smaller mobile ranges start with 4, 7 or 8.
| Number type | Starts with at home | Digits after +852 | Written at home |
|---|---|---|---|
| Mobile | 5, 6 or 9 | 8 | 5123 4567 |
| Landline | 2 or 3 | 8 | 2XXX XXXX |
Three common mistakes make a Hong Kong number fail the check, and each one is quick to fix.
Repeating +852 adds digits.
Write +852 5123 4567 once, with the country code at the front.
Typing too few or too many digits makes a number invalid.
A mobile number has 8 digits after +852. With 7 or 9 it cannot be a valid mobile, so look for a missing or doubled digit.
Leaving the wrong country selected changes how the number is read.
The lookup reads a number by the rules of the country selected above, so keep Hong Kong selected for a +852 number. Paste a number with its + and country code and the country is read from the number itself.
These are the questions people ask most about HLR lookups of Hong Kong phone numbers.
How do I check if a Hong Kong mobile number is active?
Enter the number in the box above with Hong Kong selected. Type it the way it is written at home, such as 5123 4567, or with the country code, such as +85251234567. The free tool returns its status, its country and the ported flag, and an active status means the SIM is registered and reachable.
How many digits is a Hong Kong mobile number?
A mobile number has 8 digits after +852, starting 5, 6 or 9.
Can an HLR lookup check a Hong Kong landline?
No. Only mobile lines have an entry in a Home Location Register, so a landline cannot return a connectivity status. A landline has 8 digits after +852, starting 2 or 3, such as +852 2XXX XXXX. The Hong Kong phone number checker gives the line type of any number.
Does the free HLR lookup show which network a Hong Kong number is on?
The free result shows the status, the country and the ported flag. The current and original carrier come with a free account.
Does an HLR lookup show whether a Hong Kong number was ported?
Yes. The Ported row reads Yes or No when the network answered, and Unknown when it gave no answer. Unknown is not the same as No.
What does temporarily unreachable mean for a Hong Kong mobile number?
The number exists, but the phone may be off or out of coverage right now. That is not the same as an invalid number, so keep it and check it again later.
Is the answer live for Hong Kong numbers?
Outside the US and Canada a mobile number usually gets a live answer from the network that holds it. When the lookup reads number records instead, the result says assigned, which means the number is in use and not that the phone is on.
Can I run an HLR lookup on a whole list of Hong Kong mobile numbers?
Yes. This free tool checks one number at a time. A 7-day free trial opens CSV upload and the API, at 5 credits a number, and a number the network reports as invalid is not charged.
Does the person know I ran an HLR lookup on their number?
No. No SMS is sent and the phone never rings, so its owner is never told.
You can check mobile numbers from other countries on their own pages.
These free tools answer the next question about a number.
- Hong Kong carrier lookupFind the carrier or network a Hong Kong number is on now.
- Hong Kong phone number checkerCheck whether a Hong Kong number is valid before you look it up.
- HLR Lookup for any countryThe same lookup with the country picker open to every country.
- The +852 country code pageHow to dial Hong Kong, the time there now and the landline places.
- Line type lookupSee whether a number is a mobile, a landline or VoIP.
- HLR lookup APIRun the same lookup from your own software, one request per number.
Sources: Google's libphonenumber numbering data for lengths, mobile starts and landline starts, as of September 24, 2026; the ITU list of country codes.