← Area code 414
414-500 phone numbers
Numbers 414-500-0000 to 414-500-9999 are assigned to Onvoy Spectrum, LLC (rate centre MILWAUKZN3, WI, NANPA abbreviation). 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 414-500-7xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.