← Area code 337
337-543 phone numbers
Numbers 337-543-0000 to 337-543-9999 are assigned to South Central Bell Tel in Lawtell, LA. 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 337-543-3xxx, 337-543-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.