This free Singapore HLR lookup shows whether a Singapore mobile number is active.
An HLR lookup asks a mobile number's own network whether the SIM is switched on and reachable. Enter a Singapore mobile number above, with Singapore 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 Singapore phone number checker or the Singapore carrier lookup.
- Country code
- +65
- Mobile numbers
- 8 digits after +65, starting 8 or 9
- Numbers it can check
- Mobile numbers only, because only mobile lines have an entry in a Home Location Register
- Written at home
- 8123 4567
- Written for apps and SMS
- +6581234567
- 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 Singapore number has the shape of a mobile before you ask.
Only mobile lines have an entry in a Home Location Register. These are Singapore's rules from the numbering data.
| Number | What the digits show | What the HLR lookup does |
|---|---|---|
| A Singapore mobile | A mobile number has 8 digits after +65, starting 8 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 Singapore landline | A landline starts with 6 and has 8 digits after +65. | No status comes back, because a landline has no entry in a Home Location Register. Use the Singapore phone number checker for its line type. |
| A number that moved network | Subscribers can keep their number when they change operator, and IMDA counted between 56,500 and 60,800 who did so each month in the second half of 2025. A number that moves keeps its digits. | The Ported row reads Yes, No or Unknown, and Unknown means the network gave no answer. |
These are the answers an HLR lookup gives for a Singapore 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. |
Between 56,500 and 60,800 Singapore subscribers a month kept their mobile number when they changed operator in the second half of 2025.
IMDA counts the subscribers who retained their mobile number when they switched to a new mobile operator, and it counts 9.83 million mobile subscriptions in December 2025, which is 160.9% of the population. A number can move between operators, so its first digits do not show the network it is on today.
| Month | Mobile subscriptions | Subscribers who kept their number and changed operator | Subscriptions as a share of the population |
|---|---|---|---|
| July 2025 | 9,932,000 | 56,800 | 162.5% |
| August 2025 | 9,944,600 | 60,500 | 162.7% |
| September 2025 | 9,958,000 | 58,800 | 162.9% |
| October 2025 | 9,950,700 | 59,000 | 162.8% |
| November 2025 | 9,896,900 | 56,500 | 161.9% |
| December 2025 | 9,831,500 | 60,800 | 160.9% |
Source: IMDA, Statistics on Telecom Services for 2025 (Jul - Dec), mobile market.
A Singapore mobile number is +65 followed by 8 digits, and the first one is 8 or 9.
Written with the country code
- +65Country code
- 8Mobile start
- 123 45677 more digits
The +65 comes before the number and is dropped when you dial inside Singapore.
An HLR lookup of a Singapore 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 8123 4567, or paste it with +65. It has to be a mobile.
- Its format is checkedEach type of number has its own rules. A mobile needs 8 digits after +65 and starts with 8 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 Singapore mobile number has 8 digits after +65 and starts with 8 or 9, so any other length is not a valid mobile.
These lengths come from the numbering data for Singapore. Landlines have 8 digits too, so the length does not give the type and the first digit does: 8 or 9 for a mobile, 6 for a landline and 3 for an internet telephony number. Singapore has one numbering area, so there is no area code and no leading 0.
| Number type | Starts with at home | Digits after +65 | Written at home |
|---|---|---|---|
| Mobile | 8 or 9 | 8 | 8123 4567 |
Three common mistakes make a Singapore number fail the check, and each one is quick to fix.
Repeating +65 adds digits.
Write +65 8123 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 +65. 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 Singapore selected for a +65 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 Singapore phone numbers.
How do I check if a Singapore mobile number is active?
Enter the number in the box above with Singapore selected. Type it the way it is written at home, such as 8123 4567, or with the country code, such as +6581234567. 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 Singapore mobile number?
A mobile number has 8 digits after +65, starting 8 or 9.
Can an HLR lookup check a Singapore landline?
No. Only mobile lines have an entry in a Home Location Register, so a landline cannot return a connectivity status. A landline starts with 6 and has 8 digits after +65. The Singapore phone number checker gives the line type of any number.
Does the free HLR lookup show which network a Singapore 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 Singapore 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.
Can I tell which network a Singapore mobile number is on from its digits?
No. Subscribers can keep their number when they change operator, and IMDA counted between 56,500 and 60,800 who did so each month in the second half of 2025. The Ported row of the HLR lookup shows whether a number has moved.
What does temporarily unreachable mean for a Singapore 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 Singapore 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 Singapore 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.
- Singapore carrier lookupFind the carrier or network a Singapore number is on now.
- Singapore phone number checkerCheck whether a Singapore number is valid before you look it up.
- HLR Lookup for any countryThe same lookup with the country picker open to every country.
- The +65 country code pageHow to dial Singapore, 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.