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Telephone numbers in the Philippines follow an open telephone numbering plan and an open dial plan. Both plans are regulated by the National Telecommunications Commission, an attached agency under the Department of Transportation and Communications (DOTC). The Philippines is assigned an international dialling code of 63 by ITU-T. Telephone numbers are fixed at seven digits, with area codes fixed at one, two, or three digits (the six digits system was used until the mid-1990s; four to five digits were used in the countryside). Mobile phone numbers are always 10 digits (three digits for the service provider, plus a seven digit number). When making long-distance calls in the Philippines, the prefix 0 for domestic calls and 00 for international calls are used. ==Fixed-line area codes== Philippine area codes for fixed-line or landline telephones are fixed at two digits, excluding Metro Manila, the province of Rizal and the towns of Obando in Bulacan and San Pedro, Laguna, which use the area code 2. Some smaller carriers concentrated within a specific geographic area may issue four- or five-digit area codes, but these are being phased out in favour of the standard two-digit area codes. Occasionally, a particular area may change area codes. For example, the City of Bacoor in Cavite has been included in the geographical coverage area of area code 2 per the National Telecommunications Commission's Memorandum Order No. 08-09-2011, although almost all fixed-lines in the city still use the old 46 area code 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, however the Barangay Molino VII (Sitio Gawaran) and Sitio Malipay in Molino IV now used area code 2. Sometimes area codes are shared by a number of local government entities to maximise their use. Some area codes are shared by multiple provinces, as is the case for former sub-provinces like Guimaras and Iloilo; newly carved provinces like Zamboanga Sibugay and Zamboanga del Sur; or provinces with small populations like Marinduque and Quezon. In extreme cases, area codes are shared across an island like in Leyte and Samar, or even entire regions, such as with the Cordillera Administrative Region. In order 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 dialled within a given area code do not require the area code, excluding calls made from mobile phones or pay phones. When dialling other area codes, the domestic long distance access prefix 0 is added, but when dialling from overseas, the domestic prefix is not included. As such, a typical telephone number in Metro Manila and Rizal would look like this: *Within Metro Manila, Rizal and municipalities of Obando, San Pedro and Bacoor: 1234567 *Outside Metro Manila, Rizal and municipalities of Obando, San Pedro and Bacoor: 02-1234567 *Overseas calls: +63-2-1234567 Areas are grouped into seven broad areas determining the first digit of a given area code. These areas and their accompanying area codes are listed below: *2: Metro Manila, Rizal, Bulacan (Obando), Laguna (San Pedro), Cavite (Bacoor) *3: Cebu (32), Guimaras and Iloilo (33), Negros Occidental (34), Negros Oriental and Siquijor (35), Aklan, Antique and Capiz (36), Bohol (38) *4: Aurora, Marinduque, Quezon and Romblon (42), Batangas, Occidental Mindoro and Oriental Mindoro (43), Bulacan (except Obando) and Nueva Ecija (44), Pampanga and Tarlac (45), Cavite (except Bacoor) (46), Bataan and Zambales (47), Palawan (48), Laguna (except San Pedro) (49) *5: Albay and Catanduanes (52), Biliran, Leyte and Southern Leyte (53), Camarines Norte and Camarines Sur (54), Eastern Samar, Northern Samar and Western Samar (55), Masbate and Sorsogon (56) *6: Basilan, Zamboanga del Sur and Zamboanga Sibugay (62), Lanao del Norte and Lanao del Sur (63), Cotabato, Maguindanao and Sultan Kudarat (64), Zamboanga del Norte (65), Sulu and Tawi-Tawi (68) *7: La Union (72), the Cordillera Administrative Region (74), Pangasinan (75), Ilocos Norte and Ilocos Sur (77), the Cagayan Valley (78) *8: Davao del Sur and Davao Occidental (82), Sarangani and South Cotabato (83), Davao del Norte (84), Agusan del Norte and Agusan del Sur (85), Dinagat Islands, Surigao del Norte and Surigao del Sur (86), Compostela Valley and Davao Oriental (87), Bukidnon, Camiguin, Misamis Occidental and Misamis Oriental (88) *9: Mobile phone numbers from different service providers, namely: ABS-CBN Mobile, Globe, Red Moble, Smart Buddy, Sun Cellullar, Talk N Txt and Touch Mobile SIMs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Telephone numbers in the Philippines」の詳細全文を読む スポンサード リンク
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