Declension of the word "Telefonnummer"

Singular and plural for Telefonnummer, f, female declension     translation to English phone number

Singular
Plural
Singular
Nominativ (Wer? Was?)
die Telefonnummer
die Telefonnummern
Genitiv (Wessen?)
der Telefonnummer
der Telefonnummern
Dativ (Wem?)
der Telefonnummer
den Telefonnummern
Akkusativ (Wen? Was?)
die Telefonnummer
die Telefonnummern
Plural
die Telefonnummern
der Telefonnummern
den Telefonnummern
die Telefonnummern
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