German Phrase
Meine Referenznummer ist 12345.
Meaning
The sentence means ‘My reference number is 12345.’ It is a straightforward way to give an identification number in a formal or semi‑formal setting.
When to use
Use this phrase when you need to provide a reference, order, or customer number to a service representative, in emails, on forms, or during phone calls.
✦Grammar Breakdown
MeineReferenznummerist12345.
Possessive Determiner (Meine)
‘Meine’ is the feminine singular form of the possessive adjective for ‘my’, matching the gender of ‘Referenznummer’.
Compound Noun (Referenznummer)
‘Referenznummer’ is a compound noun (Reference + Number) and is feminine, so it takes ‘die’ and ‘eine’ in other contexts.
Verb ‘sein’ (ist)
‘ist’ is the third‑person singular present of ‘sein’ (to be) and is used here to equate the subject with the number.
Reading Large Numbers
The number 12345 is read as ‘zwölftausenddreihundertfünfundvierzig’ in German.
🗨In Conversation
Könnten Sie mir bitte Ihre Referenznummer geben?
Could you please give me your reference number?
Meine Referenznummer ist 12345.
My reference number is 12345.
✕Common Mistakes
Mein Referenznummer ist 12345.
‘Referenznummer’ is feminine, so the possessive must be ‘meine’, not ‘mein’.
Meine Referenznummer sind 12345.
The subject is singular, so the verb must be ‘ist’, not ‘sind’.
Meine Referenznummer ist eins zwei drei vier fünf.
Large numbers are normally spoken as one word, not digit by digit.
↔Alternatives
Meine Kundennummer lautet 12345.
My customer number is 12345.
Meine Referenz lautet 12345.
My reference is 12345.
Ich habe die Referenznummer 12345.
I have the reference number 12345.
Cultural Tip
In German business communication it is common to state reference numbers clearly and often precede them with a colon, e.g., ‘Referenznummer: 12345’. When speaking with strangers or in formal contexts, use the polite ‘Sie’ form, and keep the tone concise and professional.

