You can also search area codes by state, and within the NANP, find country area codes. The area codes locator shows the coverage area for each phone number area code. Area code locations are also listed by city next to the area code maps on this page. Find area codes using the area code search function on AreaCode. With area codes search, you can find city area codes in the United States, Canada and elsewhere. State area codes may be found using AreaCode.
The telephone area code is dialed before the local number. For area codes by city, search AreaCode. Area codes telephone differ from region to region, and in some places the area code must be dialed even when calling locally within that region.
Find out more with area code decoder. Area Code List. Area Code At AreaCode. Area Codes AreaCode. Area Code Lookup AreaCode. Telephone Area Codes AreaCode. Area Codes Locator The area codes locator shows the coverage area for each phone number area code.
Area Code Location AreaCode. Subscriber : Finally, the final 4 digits of the phone number are known as the subscriber or local number. Based on the total number of active NPA and NXX combinations reserved and that each one could have up to 10, possible subscriber numbers, the current total possible number of telephone numbers is 1,,, Remember though that phone numbers are no longer just used for standard home phones.
Many telephone numbers are now used for fax machines, cell phones or wireless phones, or internet connections so one person may actually need multiple phone lines. They were created to prepare for a nationwide unified long-distance direct dialing system - the ability to make a call to any other calling area without the need for an operator. The first digit did not allow a zero could be confused with the operator or a 1 techical reasons. At the time, rotary phones made it so that dialing lower numbers like 1 or 2 took less time to dial and dialing higher numbers took longer to dial.
Area codes with lower numbers that were easier to dial were given to high population and high call volume areas. The original area codes only existed in the US and Canada. Parts of Canada, Alaska, and Hawaii were not yet included. When the phone formats we commonly use today first came into service in the s and the s, blocks of phone numbers were allocated to a phone carrier in 10, phone numbers ie. Frequently, the 10, numbers would be enough for a small town with larger towns being allocated multiple prefixes.
Further, local phone carriers frequently had a monopoly on local phone service which prevented large portions of an allocated block from being unutilized. In the s, cell phones became much more popular which created an explosion of demand for new phone numbers. Cell phones also reduced the monopoly of local phone providers which reduced utilization of allocated prefixes.
Instead of a single primary phone carrier, cities had two or more carriers - each needing their own prefix. In addition, the rise in popularity in the internet dial up and DSL and voice over IP VOIP , local interenet service providers and cable companies started to request prefixes.
Many of these prefixes included few, if any, subscribers. For decades, new area codes were created through a "split" of an existing area code into multiple regions. Normally, the more populated region would continue to use the existing area code. The less populated areas would have all existing phone numbers reassigned to use a new area code to free up more numbers in the original area code. This process forced many into a new phone number which would require updates to letterhead, business cards, phone directories, personal contact lists, etc.
Many people would dial the incorrect area code which caused confusion. In , area code was created as the first "overlay" area code. With an overlay area code, the overlay serves the same geographic as the original to increase the pool of numbers available in the area. When the original phone systems were put in place, 7-digit dialing without the area code could be used to make local calls, and digit dialing with the area code only needed to be used for long distance calls.
In , area code was introduced as the first overlay with forced 10 digit dialing for local calls. Initially, there was substantial public resistance to overlays because of the digit dialing requirement for local calls.
However, the last area code split in Canada was in with the split of splitting off and the last area code split in the US was in with splitting off No area code splits are currently proposed and both countries have agreed: without exceptional circumstances, all new area codes will be overlays.
Today, 7-digit dialing is broken in most major cities. Many areas not served by an overlay can still use 7-digit dialing. Something besides allocating more area codes needed to be done to improve the system. After a few trials, mandatory number pooling was implemented in with a national rollout to the largest metropolitan areas. With number pooling, an entire prefix of 10, numbers is allocated to a specific area, but phone numbers are only allocated to a specific carrier in 1, block increments.
While several US markets are still not required to implement number pooling and Canada has no number pooling, the effects dramatically slowed the need to allocate new prefixes and new area codes because of increased utilization. The rate of issuing new area codes dropped to nearly half that of the s. While it may seem that all consumers in the US use a mobile phone, more than two-thirds of prefixes are allocated for landline use.
That number has been dropping by about 3. Not all area codes are assigned to a specific geographic area. One of the most common are toll-free area codes where the caller is not billed for long distance though wireless customers may have minutes deducted from their plan : , , , , , , and The area code is also currently used for premium services that are billed to the caller at higher than normal long distance rates.
In the s and and early s, numbers were frequently used to target children to run up phone bills, psychic hotlines, adult entertainment, computer help, etc. Legislative protections in the s and the withdrawal of phone companies from passing these fees onto customers has largely killed the number industry.
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