What is NPA-NXX lookup?

What is NPA-NXX lookup?

NPA-NXX is a term representing the first six digits of a phone number within the North American Numbering Plan (NANP).

What is an NXX number?

NXX, also known as the Central Office Code or Exchange, is a three-digit code that forms the second part of a 10-digit phone number. For example: In the phone number 555-101-1234, the NXX is 101.

How do I find a rate center for a phone number?

A rate center can be found by finding the NPA – NXX of a phone number. What does this even mean, you ask? For example: (858) 922-1234: 858 is an area code assigned in California.

Where is the area code from?

Area Code Listing, by Number

Area Code Region Description
213 CA S California: Los Angeles (see 310, 323, 626, 818)
214 TX Texas: Dallas Metro (overlays 469/972)
215 PA SE Pennsylvania: Philadelphia (see overlays 267)
216 OH Cleveland (see splits 330, 440)

WHEN DID phone numbers have names?

We of a certain age remember when telephone numbers used to start with names instead of digits. The first two letters of the name were usually capitalized, and they corresponded to the first two digits of the phone number on a dial. This system started in the 1930s and lasted well into the ’60s.

How many NPA NXX are there?

800 possible NXX Codes
Each NPA contains 800 possible NXX Codes. There are two general categories of NPA, “Geographic NPAs” and “Non-Geographic NPAs.” A “Geographic NPA” is associated with a defined geographic area, and all telephone numbers bearing such NPA are associated with services provided within that geographic area.

How many phone number combinations are there?

Each area code has 792 prefixes or “NXX” codes. Each NXX has 10,000 possible numbers. Therefore, theoretically, there are 7,920,000 telephone numbers per area code.

What is a rate center violation?

Mobile phones are usually assigned to a downtown rate center in order to obtain a better inbound local calling area. This will cause attempts to port from wireless to wireline service to fail if the wireline is outside the city center and therefore in a different rate center.

How can I identify a phone number?

Identify a caller To do a reverse-number lookup: Go to Spokeo Reverse Phone Lookup. Enter the full 10-digit phone number and select Search now.

Can I get a list of area codes?

Area Code Listing, by Number

Area Code Region Description
212 NY New York City, New York (Manhattan; see 646, 718)
213 CA S California: Los Angeles (see 310, 323, 626, 818)
214 TX Texas: Dallas Metro (overlays 469/972)
215 PA SE Pennsylvania: Philadelphia (see overlays 267, 445)

What is the oldest phone number?

According to the hotel’s website, PEnnsylvania 6-5000 is New York’s oldest continually assigned telephone number and possibly the oldest continuously-assigned number in the world.

How do I find out the owner of a telephone number?

With those restrictions in mind, let’s look at the best strategies to check for the origin or owner of a phone number.

  1. Google.
  2. Whitepages.
  3. WhoCallsMe.
  4. Searchbug.
  5. NumberVille.
  6. NumLookup.
  7. SpyDialer.

How many possible area codes are there?

A. There are 800 possible combinations associated with the area codes. See the numerical list of area codes that are used today. But, some of these combinations are not available to be introduced.

How do you calculate combinations?

Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter. To calculate combinations, we will use the formula nCr = n! / r! * (n – r)!, where n represents the total number of items, and r represents the number of items being chosen at a time.

How are rate centers determined?

Each rate center is based on: A precise physical location, based on vertical and horizontal coordinates, for the purpose of calculating the distance between telephone rate centers for billing purposes. One or several prefixes, in the form +1-NPA-NXX, each of which identify a block of ten thousand directory numbers.

What is LNP in telecommunications?

Local Number Portability (LNP), also known as number portability and number porting, enables end users to keep their telephone number when switching from one telecommunications service provider to another.

How can you trace an unknown number?

Using Call Return and Call Trace to ID Unknown Callers To use this service, supported by many landlines, VoIP services, and cell phones, you just need to dial * followed by 69. This returns the latest call, allowing you to speak with the caller and view the number on your telephone if it was previously hidden.

How do I find out what apps are linked to my phone number?

To check, follow these steps.

  1. Go to Settings by clicking on your profile picture.
  2. Under Settings and Privacy click Apps.
  3. Again, you’ll see the full list of connected services.
  4. Click Revoke Access for anything you no longer use (this might take a few minutes to update)

Why is 555 a fake number?

“555” is an exchange number commonly thought to be reserved by the phone companies for use by TV and movies in order to prevent prank phone calls to real people. In fact, only 555-0100 through 555-0199 are now specifically reserved for fictional use, and the other numbers have been released for actual assignment.

How can I look up NPA-NXX area codes?

KFR’s free NPA-NXX lookup is great for checking which area codes and prefixes are assigned to a given rate center, what rate center a particular NPA-NXX is in or what area codes are in a specific state. Should you have any questions about area codes and/or international dialing codes, please don’t hesitate to contact us.

What fields should be included in the NPA-NXX?

All NPA-NXX along with the following fields: State, Company, OCN, Ratecenter, CLLI, Assign Date, prefix type, Switch name, switch type, lata, ILEC Name and ILEC OCN (Warning: 18MB+, automatically updated whenever a major site update occurs) This file will be truncated if loaded into Excel. Please use MS Access or something like it.

How do I contact telcodata support?

If you have any issues, problems or dead links, please e-mail us at [email protected] We’ve just upgraded to Debian Lenny (from Etch) and Apache 2.2 instead of 1.3.