Browse by Area

Browse phone numbers by area code to identify unknown callers and verify suspicious numbers. Area codes organize reports by region, making it easier to spot local scam patterns and telemarketing activity.

List of area codes:

2XX

3XX

4XX

5XX

6XX

7XX

8XX

9XX

What Is an Area Code?

Area Code is a numbering prefix allocated for every phone number across all telecommunications systems in the world. Its main purpose is grouping numbers based on geographic regions, types of services, or networks to which phone numbers belong. The area code helps to determine where the telephone line should connect once you make a telephone call. The area code also assists you in understanding where a telephone call is originating or what kind of service you can expect on the line before you pick up.

In U.S. phone numbers follow a numbering system based on the North American Numbering Plan. The numbering scheme follows the 10-digit number structure (NPA) NXX-XXXX where the (NPA) stands for Area Code; the NXX identifies the particular telephone exchange or telephone service provider; and XXXX identifies the Subscriber Number. This system was established back in 1947 for the purpose of standardizing telephone numbers within the US, Canada, and some Caribbean countries. In the beginning, area codes were allocated depending on the density of the population; hence large cities such as New York (212) and Los Angeles (213) had smaller numbers because they were calling centers. The addition of area codes in different regions was as a result of growth and increased use of phones.

Area codes have developed past the mere designation of geographical location. In the advent of cellular technology, Voice Over Internet Protocol (VoIP), and mobile phone portability, individuals continue using the same area codes despite relocating to other states. Businesses also purchase virtual phone numbers from different area codes without regard to physical location. Criminals take advantage of this by masking their calls with local area codes in order to create legitimacy.

Area Code Classifications

Not all three-digit prefixes work the same way. A 212 number ties to Manhattan. An 800 number could be anywhere in the country. A 900 number charges you money just for answering. Knowing which category an area code belongs to changes how you should treat the call - whether to trust the location it claims, expect charges, or recognize it as a potential scam tactic.

Here are the main types you will encounter:

Geographic Area Codes

These cover specific cities, counties, or regions. Your area code used to match where you lived, but that's changed - people keep their cell numbers when they move, making location less reliable. Crowded places burn through available numbers quickly. Phone companies handle this by cutting the area into zones with separate codes, or they stack a new code over the old one. Either way, you end up with neighborhoods where your neighbor might have a completely different area code than you.

Toll-free Numbers

Toll-free numbers start with 800, 888, 877, 866, 855, 844, or 833, and anyone in the country can register one. Banks use them. So do scammers pretending to be banks. There's no way to tell location from a toll-free number, which makes them popular for both legitimate customer service and phone scams.

Premium-Rate Numbers

The 900 area code is for premium-rate services that charge per minute - think old-school psychic hotlines and adult content lines. These are rarely legitimate anymore. The 500 area code was reserved for personal communication services but is mostly unused. Area codes 710, 950, and 976 handle specific telecom functions and aren't available to the public.

Government & Special Use Codes

Area codes like 710 are reserved for government use and aren't available to the public. You'll rarely see calls from these. If you do get a call claiming to be from a government agency with an unusual area code, it's likely a scam - real government offices use regular geographic codes.

VoIP and Virtual Numbers

VoIP services let businesses and individuals get phone numbers from any area code regardless of location. A company in India can have a 212 New York number. Scammers love this because they can pick area codes that match wherever they're calling, making the number look local to you.

Newly Assigned Codes

When regions run out of numbers, new area codes get added. These sometimes attract more scam activity because residents don't recognize them yet. An unfamiliar code might be legitimate growth in your area, or it might be call centers testing whether people answer numbers they don't know.

Landline vs. Mobile Phone Numbers

In the NANP system, it’s not the area code which defines the type of the phone line; it is indicated by the exchange code (which consists of NXX digits). Telecom companies file information on whether a specific exchange code prefix belongs to a landline or wireless number or to VoIP services into their databases. When conducting a reverse phone search, the tool will search for the information about the type of the phone number in question in these company’s databases. Thus, it becomes clear whether (212) 555-XXXX is a landline phone used in Manhattan and connected with a physical address or a cell phone which may ring at any place within its area code.

Landline - codes are tied to fixed geographic locations. When a landline gets a phone number, the phone number reflects where the physical phone line is installed - a specific building, address, or service area. Codes are permanent since there is no physical relocation involved.

Mobile - codes work differently across countries. While some countries have specific area codes for cellular phones, making it simple to distinguish between wired and wireless numbers, others, including the US and Canada, do not differentiate between cellular and non-cellular services using area codes.