Both plans are regulated by the National Telecommunications Commission, an attached agency under the Department of Information and Communications Technology (DICT).

Philippine area codes for fixed-line or landline telephones are fixed at two digits, excluding Metro Manila, the province of Rizal and the cities of Bacoor in Cavite and San Pedro in Laguna, which use the area code 2.

However, almost all fixed lines in the city still use the 46 area code being used across the rest of Cavite due to the poor compliance of PLDT and Globe to the said memorandum order.

PLDT's response to the memorandum order is the release of its "Call All Manila SIM", an exclusive wireless landline service for Bacoor residents.

To identify the call's point of origin, the three-digit telephone exchange prefix is checked.

Since the Philippines employs an open dial plan, telephone numbers dialed within a given area code do not require the area code, excluding calls made from mobile phones or payphones.

As such, a typical telephone number in Metro Manila and Rizal would look like this: Since October 6, 2019, all telephone numbers with the area code 2 were migrated to eight digits, as mandated by the National Telecommunications Commission's Memorandum Order No.

The maintenance for this migration from 7-digit (XXX-YYYY) to 8-digit numbers (PXXX-YYYY) occurred from 12:00 a.m. to 5:00 a.m. PHT, causing a five-hour disconnection.