800 number

短语

【电信学】受话人付费业务(指前3位数字为800的电话号码)

词形变化

800 numbers 复数 800 numbers

释义与例句

n.
  1. 1.

    A toll-free telephone number.

    加拿大 美国

词源

In the original North American Numbering Plan, phone numbers beginning with an area code of "800" were reserved for so called toll-free numbers, where the party receiving the call pays the charges. As more toll-free numbers were needed, additional area codes were added to the scheme including 888, 877, 866, 855, 844, 833 and one more was reserved: 822. The term "800 number" is used colloquially to refer to all of these.

来源：wiktionary