局きょく番ばん

noun

telephone exchange number; telephone prefix

Telecommunications term for the exchange-code or prefix part of a telephone number. It is especially common in compounds such as 市外局番 and 市内局番.

• この地ち域いきでは来らい月げつから電でん話わの局きょく番ばんが変かわります。

  In this area, the telephone exchange number will change next month.

• 市し外がい局きょく番ばんを忘