← Area code 320
320-326 phone numbers
Numbers 320-326-0000 to 320-326-9999 are assigned to Verizon Wireless in Litchfield, MN. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 320-326-0xxx, 320-326-4xxx, 320-326-5xxx, 320-326-6xxx, 320-326-7xxx, 320-326-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.