This page connects featured cities in Constitutional Province of Callao with their published or clearly qualified telephone numbering associations.
For a fixed line outside the caller’s local numbering area, use domestic 0 + department code + subscriber number. From abroad, remove that 0: 01 becomes +51 1 and 054 becomes +51 54. For a Peruvian mobile, dial +51 followed directly by its nine-digit number.
Peru Time (PET), UTC−5 year-round
America/Lima: Calculated in your browser
A fixed-line code identifies a department-level numbering area rather than one city or an exact address. Lima and Callao share code 1, and each other listed code covers its whole department. Mobile numbers beginning with 9 are nationwide and do not use these geographic codes. Portability, call forwarding and VoIP can also weaken current-location or carrier inference.
A code listed beside a city reflects a featured numbering association; it does not assert that every community in Constitutional Province of Callao uses that code or that the code stops at the administrative border.
This release includes 1 verified or clearly qualified code association for the featured cities in Constitutional Province of Callao.