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← Area code 414

414-600 phone numbers

Numbers 414-600-0000 to 414-600-9999 are assigned to Onvoy, LLC (rate centre MILWAUKZN4, WI, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 414-600