411 REFERENCE · Wiktionary
1-555
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
555 (telephone number)
Alternative forms
en 555 (555)
Etymology
From 1, used to dial long-distance numbers and 555, the North American code for the provision of directory assistance.
Adjective
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Of telephone numbers dialed in North America, widely used for fictional numbers in television shows, films, and other media.
en Fiction Telephony