← Area code 787
787-422 phone numbers
Numbers 787-422-0000 to 787-422-9999 are assigned to Liberty Mobile Puerto Rico Inc. in Guaynabo, PR. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 787-422-5xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.