Year 77 (LXXVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Vespasianus (or, less frequently, year 830 Ab urbe condita). The denomination 77 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

The codes described are relevant only to the NANP telephone system. A similar feature is used in European ISDN networks, which is mandated by the European Telecommunication Regulation in the Directive on Privacy and Electronic Communications, cf. .

Anonymous call rejection is a landline calling feature which screens out calls from callers who have blocked their Caller ID information. Anonymous Call Rejection is based on caller ID (not automatic number identification or ANI). It is often free with caller ID on landlines.

Year 77 (LXXVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Vespasianus (or, less frequently, year 830 Ab urbe condita). The denomination 77 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

The codes described are relevant only to the NANP telephone system. A similar feature is used in European ISDN networks, which is mandated by the European Telecommunication Regulation in the Directive on Privacy and Electronic Communications, cf. .

Anonymous call rejection is a landline calling feature which screens out calls from callers who have blocked their Caller ID information. Anonymous Call Rejection is based on caller ID (not automatic number identification or ANI). It is often free with caller ID on landlines.