先方senpounoo電話denwa番号bangouha何番ですかdesuka
What's the number of the party you are trying to reach?

© Based on JMdict, KANJIDIC2, and JMnedict, property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. Example sentences from the Tatoeba project (CC BY 2.0). Kanji stroke order data from the KanjiVG project by Ulrich Apel (CC BY-SA 3.0). See comprehensive list of data sources for more info.

Search other dictionaries for 先方のお電話番号は何番ですか。:
Yahoo!辞書 / goo辞書 / alc.co.jp / Weblio / Wiktionary