What is international Numbering Plans?
International Numbering Plans is specialised in world-wide (tele)communications related numbering plans, and offers a range of on-line services for a variety of market segments in the global telecommunications sector. Most on-line services are free of charge for personal or limited use.
What is numbering plan in telecommunication?
National Numbering Plan (NNP): a plan that specifies the format and structure of the numbers used in identifying devices or subscribers connected to a network, which in turn can also be used for routing and call charging.
How do phone area codes work?
The NANP divides the territories of its members into numbering plan areas (NPAs) which are encoded numerically with a three-digit telephone number prefix, commonly called the area code. Each telephone is assigned a seven-digit telephone number unique only within its respective numbering plan area.
How are landline numbers assigned?
Telephone numbers in the United Kingdom are administered by the Office of Communications (Ofcom). For this purpose, Ofcom established a telephone numbering plan, known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations.
What is the maximum length of a mobile number?
The International Telecommunication Union (ITU) has established a comprehensive numbering plan, designated E.164, for uniform interoperability of the networks of its member state or regional administrations. It is an open numbering plan, however, imposing a maximum length of 15 digits to telephone numbers.
How many number is Nigeria number?
Nigeria’s telephone numbers are made up of between 9 to 12 numbers split into groups of 3. So if you’re going to make a call to Nigeria using a mobile phone, you should dial country code+area code+5-7-digit number.
What area codes are not used?
200–299
| Code | Territory or use | Notes |
|---|---|---|
| 221 | not in use | |
| 222 | not in use | easily recognizable code (ERC) |
| 223 | Pennsylvania (Harrisburg, Gettysburg, Lancaster, York and most of south-central Pennsylvania) | 2017, overlaid on 717 mnemonic: ABE |
What is the longest international phone number?
E.164 permits a maximum length of 15 digits for the complete international phone number consisting of the country code, the national routing code (area code), and the subscriber number.
Who decided international dialing codes?
COUNTRY dialling codes were agreed in the early 1960s by the International Telecoms Union (a club of each country’s network providers). In the days of mechanical telephone exchanges, it was convenient to split the world into broad areas: 1 for USA, 2 for Africa, 3 and 4 for Europe, etc.
What’s the capital of India?
New DelhiIndia / Capital