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Telephone numbers in the Philippines

Telephone numbers in the Philippines is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Telephone numbers in the Philippines rather than just read about it. In short: 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 Information and Communications Technology (DICT).

Telephone numbers in the Philippines — main illustration
Telephone numbers in the Philippines — illustration

Key takeaways

  • Telephone numbers in the Philippines belongs to mathematics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Telephone numbers in the Philippines to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Telephone numbers in the Philippines from memory before moving on to harder problems.

Reference excerpt

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 Information and Communications Technology (DICT). The Philippines is assigned an international dialing code of +63 by ITU-T. Telephone numbers are fixed at eight digits for area code 02, and seven digits for area codes from 03X to 09X, with area codes fixed at one, two, or three digits (a six-digit 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 prefixes 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 cities of Bacoor in Cavite and San Pedro in 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 favor of the standard two-digit area codes. Occasionally, some areas may change area codes. For examples before 6 October 2019: Obando formerly used area code 2. Bacoor formerly used the Cavite province area code. San Pedro formerly used the Laguna province area code. Sometimes area codes are shared by several local government entities to maximize their use. Some area codes are shared by multiple provinces, as is the case for former sub-provinces like Guimaras and Iloilo; divided 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. 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. When dialing other area codes, the domestic long-distance access prefix 0 is added, but when dialing 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 cities of Bacoor and San Pedro: 8123–4567 Outside Metro Manila, Rizal, and cities of Bacoor and San Pedro: 02–8123–4567 Overseas calls: +63-2-8123-4567 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. 10–10–2017, due to insufficient assignable local exchange codes. 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. This affected subscription-based virtual numbers (i.e. Globe Duo), SIM card-based Telephone Service (i.e. PLDT Landline Plus Prepaid), #MyNumber (the format is #XXXXX, i.e. #87000 for Jollibee Delivery), FEX Lines, SIP Trunks, ISDN and vanity numbers, including virtual numbers like short-digit numbers (e.g., *1888 for PLDT Telephone Support, 211 for Globe Prepaid Help and Support), Toll Free (domestic, international and universal, i.e. 1-800-1-123-4567, in dialing, 00-800-1-123-4567) and Premium numbers such as embassy hotline and 1900 service hotline. Since October 6, 2019, 5:00 a.m. PHT, the following telephone number format to be followed:

PXXX-YYYY where P is for Public Telecommunication Entity, and the XXX-YYYY is the telephone number. NTC has assigned the following Public Telecommunications Entity (PTE) identifiers:

3XXX–YYYY: Bayan Telecommunications 5XXX–YYYY: Eastern Communications Philippines 6XXX–YYYY: ABS-CBN Convergence 7XXX–YYYY: Globe Telecom 8XXX–YYYY: PLDT 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:

Area 2 – National Capital Region, Rizal and Surroundings 2: Metro Manila, Rizal, Cavite (Bacoor), Laguna (San Pedro)

Area 3 – Western and Central Visayas 32: Cebu 33: Guimaras, Iloilo 34: Negros Occidental 35: Negros Oriental, Siquijor 36: Aklan, Antique, Capiz 37: 38: Bohol 39:

Area 4 – Central Luzon and Southern Tagalog 42: Aurora, Marinduque, Quezon, Romblon 43: Batangas, Occidental Mindoro, Oriental Mindoro 44: Bulacan, Nueva Ecija 45: Pampanga, Tarlac 46: Cavite (except Bacoor) 47: Bataan, Zambales 48: Palawan 49: Laguna (except San Pedro)

Area 5 – Bicol and Eastern Visayas 52: Albay, Catanduanes 53: Biliran, Leyte, Southern Leyte 54: Camarines Norte, Camarines Sur 55: Eastern Samar, Northern Samar, Western Samar 56: Masbate, Sorsogon 57: 58: 59:

Area 6 – Western and Central Mindanao (Zamboanga Peninsula, Bangsamoro and Northern Soccsksargen) 62: Basilan, Zamboanga del Sur, Zamboanga Sibugay 63: Lanao del Norte, Lanao del Sur 64: Cotabato, Maguindanao del Norte, Maguindanao del Sur, Sultan Kudarat 65: Zamboanga del Norte 66: 67: 68: Sulu, Tawi-Tawi 69:

Area 7 – Northern Luzon (Ilocos Region, Cagayan Valley and Cordillera Administrative Region) 72: La Union 73: 74: Abra, Apayao, Benguet, Ifugao, Kalinga, Mountain Province 75: Pangasinan 76: 77: Ilocos Norte, Ilocos Sur 78: Batanes, Cagayan, Isabela, Nueva Vizcaya, Quirino 79:

Area 8 – Northern, Eastern and Southern Mindanao (Davao Region, Caraga and Southern Soccsksargen) 82: Davao del Sur, Davao Occidental 83: Sarangani, South Cotabato 84: Davao del Norte 85: Agusan del Norte, Agusan del Sur 86: Dinagat Islands, Surigao del Norte, Surigao del Sur 87: Davao de Oro, Davao Oriental 88: Bukidnon, Camiguin, Misamis Occidental, Misamis Oriental

List of fixed-line area codes

… excerpt ends here. Continue reading the full article.

Illustrations

Telephone numbers in the Philippines illustration

Worked examples

Example 1 — a first encounter with Telephone numbers in the Philippines

Start with the simplest possible case. Write down what Telephone numbers in the Philippines claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Telephone numbers in the Philippines before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Telephone numbers in the Philippines ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Telephone numbers in the Philippines

In research
Telephone numbers in the Philippines appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Telephone numbers in the Philippines in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Telephone numbers in the Philippines is common in secondary-school and first-year university syllabi. It links to neighbouring topics Philippines communications-related lists, Telecommunications in the Philippines, Telephone numbers by country, so understanding it makes those chapters shorter.
In everyday life
Look for Telephone numbers in the Philippines outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Telephone numbers in the Philippines in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Telephone numbers in the Philippines means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Telephone numbers in the Philippines out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Telephone numbers in the Philippines in simple terms?

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 Information and Communications Technology (DICT).

Why does Telephone numbers in the Philippines matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Telephone numbers in the Philippines?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Telephone numbers in the Philippines.

Tags

  • Philippines communications-related lists
  • Telecommunications in the Philippines
  • Telephone numbers by country
  • Telephone numbers in the Philippines

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