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This free German HLR lookup shows whether a German mobile number is active.

An HLR lookup asks a mobile number's own network whether the SIM is switched on and reachable. Enter a German mobile number above, with Germany 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.

Also try the German phone number checker or the German carrier lookup.

Country code
+49
Mobile numbers
10 to 11 digits after +49, starting 01
Numbers it can check
Mobile numbers only, because only mobile lines have an entry in a Home Location Register
Written at home
01512 3456789
Written for apps and SMS
+4915123456789
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 German number has the shape of a mobile before you ask.

Only mobile lines have an entry in a Home Location Register. These are Germany's rules from the numbering data.

NumberWhat the digits showWhat the HLR lookup does
A German mobileA mobile number has 10 to 11 digits after +49, starting 01.Asks the network whether the SIM is on and reachable. Outside the US and Canada the answer usually comes live from the network.
A German landlineA landline has 5 to 15 digits after +49, starting 02, 03, 04, 05, 06, 07, 08 or 09, such as +49 30 XXXXXXXX.No status comes back, because a landline has no entry in a Home Location Register. Use the German phone number checker for its line type.

These are the answers an HLR lookup gives for a German 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.

StatusWhat the network is sayingWhat to do
Active / reachableThe SIM is registered on a network and can receive a call or SMS now.Safe to message or call.
Temporarily unreachableThe 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 lineThe network reports no subscriber on this number.Remove it from the list.
Invalid or not in serviceThe records have no assigned number like this one.Remove it from the list, and check the digits first.
AssignedA 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.
UnknownThe network gave no usable answer.Treat it as unresolved, never as invalid, and check it again later.

A German mobile number is +49 followed by 10 to 11 digits, and the first one is 1.

How a German mobile number is built

Written with the country code

  1. +49Country code
  2. 1Mobile start
  3. 512 345678910 more digits

Written at home

  1. 0Replaces +49
  2. 1Mobile start
  3. 512 345678910 more digits

The +49 and the 0 do the same job, so a number is never written with both.

An HLR lookup of a German 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.

What one German HLR lookup does
  1. You enter the numberType it the way it is written at home, such as 01512 3456789, or paste it with +49. It has to be a mobile.
  2. Its format is checkedEach type of number has its own rules. A mobile needs 10 to 11 digits after +49 and starts with 01 at home.
  3. 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.
  4. You see the statusActive, temporarily unreachable, no active line or unknown, with the country and the ported flag.

A German mobile number has 10 to 11 digits after +49 and starts with 01, so any other length is not a valid mobile.

These lengths come from the numbering data for Germany. German area codes run from two to five digits, so the length of a landline depends on its area code.

Number typeStarts with at homeDigits after +49Written at home
Mobile0110 to 1101512 3456789
Landline02, 03, 04, 05, 06, 07, 08 or 095 to 15030 XXXXXXXX

Three common mistakes make a German number fail the check, and each one is quick to fix.

  1. Keeping the 0 after +49 adds a digit.

    The 0 is only for dialing inside Germany, so +49 01512 3456789 is wrong. Drop the 0 and write +49 1512 3456789.

  2. Typing too few or too many digits makes a number invalid.

    A mobile number has 10 to 11 digits after +49. With fewer than 10 or more than 11 it cannot be a valid mobile, and inside that range the first digits decide how many are needed, so look for a missing or doubled digit.

  3. 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 Germany selected for a +49 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 German phone numbers.

How do I check if a German mobile number is active?

Enter the number in the box above with Germany selected. Type it the way it is written at home, such as 01512 3456789, or with the country code, such as +4915123456789. 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 German mobile number?

A mobile number has 10 to 11 digits after +49, starting 01.

Can an HLR lookup check a German landline?

No. Only mobile lines have an entry in a Home Location Register, so a landline cannot return a connectivity status. A landline has 5 to 15 digits after +49, starting 02, 03, 04, 05, 06, 07, 08 or 09, such as +49 30 XXXXXXXX. The German phone number checker gives the line type of any number.

Does the free HLR lookup show which network a German 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 German 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 German 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 German 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 German 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.

Sources: Google's libphonenumber numbering data for lengths, mobile starts and landline starts, as of September 24, 2026; the ITU list of country codes.

You can run an HLR lookup on a whole list of numbers with a 7-day free trial.

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.