562-731 phone numbers

Numbers 562-731-0000 to 562-731-9999 are assigned to Level 3 Communications, LLC in Lakewood, CA. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 562-731-5xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 562-731