408-220 phone numbers

Numbers 408-220-0000 to 408-220-9999 are assigned to Mcimetro Access Transmission Services LLC in Sunnyvale, CA. 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 408-220