650-228 phone numbers

Numbers 650-228-0000 to 650-228-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre SSNFRNCSCO, CA, 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 650-228