Info Phone 30371310XX, 3037131090, 3037131061, 3037131011, 3037131042, 3037131019.

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Example of Formatting Phone Numbers 303-713-10XX / 30371310XX
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Databases updated on September 17, 2021

What state area code is 303?

Area code 303 refers to the state CO and rate center DENVER

Which company owns the phone numbers +1 (303) 200-10XX?


Area code 303 and prefix 200 assign data ?

Assign data December 31, 1969
Phone Activity Timestamp
303-713-1090 Marked 3037131090 as Missed7 September 2021 14:34:46
303-713-1061 Marked 3037131061 as Unsafe15 August 2017 09:06:55
303-713-1011 Marked 3037131011 as Unsafe12 May 2016 05:16:59
303-713-1042 Marked 3037131042 as Unsafe28 January 2016 02:29:13
303-713-1019 Marked 3037131019 as Unsafe22 October 2015 02:26:42
Tagged number:
Missed: A missed call is a phone call that the caller deliberately interrupts in order for you to call back.
Text: SMS messages of an advertising nature, from an unknown number.
Scammer: More often than not, phone scammers try to steal your money or personal information.
Automated: Automatic calls made by a robot on a previously prepared topic.
Genuine: Calls from a trusted source.
Unsafe: Unwanted calls.

How many telephone numbers are in DENVER area code?

Each area code contains 303 usable telephone prefixes, which are the 3-digit numbers that follow the area code. Each prefix has 10,000 telephone numbers, and each area code has 7.92 million telephone numbers. 

What makes up a telephone number?

Our telephone numbering system operates under the North American Numbering Plan, which was developed in 1947 by AT&T and subsequently adopted by the Federal Communications Commission (FCC). It established the 10-digit scheme we use today.

Area Code NPA NXX
  • The "NPA" (Number Plan Area) is the area code. DENVER currently has eight area codes: 303, 319, 660, 704, 717, 720, 765, 980.
  • The "NXX" is the central office (CO) code, and is also referred to as the "prefix." An NXX serves a specific exchange or rate center.
  • The XXXX is the line number for the customer.