← Area code 534
534-201 phone numbers
Numbers 534-201-0000 to 534-201-9999 are assigned to Level 3 Communications, LLC in Cameron, WI. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 534-201-0xxx, 534-201-2xxx, 534-201-3xxx, 534-201-4xxx, 534-201-5xxx, 534-201-6xxx, 534-201-8xxx, 534-201-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.