WebOct 18, 2024 · It's often used interchangeably with the area code, which is a three-digit number that identifies the phone service region. ... 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. WebThe combination of NPA code and central office code served as a destination routing code for use by operators to reach any central office through the switching network. ... Canadian telephone companies briefly promoted 555-1313 as a pay-per-use "name that number" reverse lookup in the mid-1990s. Occasionally, valid telephone numbers are …
Central office code protection - Wikipedia
WebOct 18, 2024 · It’s possible for a single NPA to be present in more than one rate center. For example: The 305 area code in Florida is present in the following rate centers: Keys, … WebThis site provides information about the North American Numbering Plan (NANP) and its administration. The NANP is the numbering plan for the Public Switched Telephone Network for Canada, the US and its territories, and some Caribbean countries. Transition to 10-Digit dialing for 988 More Information NANPA Web Guide NANPA Help Desk. sk lab live chat
What do the terms NPA and NXX mean? - Bandwidth Support …
[email protected]. 1-800-425-1169. United States Area Code Listings. and NPA/NXX Database Lookup. · Our NPA NXX Area Code database has over 428,000 data records. · We are a licensed distributor of the U.S. Postal Service data. · IMMEDIATE download upon purchase. · Current and precise data. · Unlimited number of users … WebThe Numbering Plan Area code is the first three digits of a 10 digit NANP telephone number. The NPA, combined with the Central Office Code or NXX, is the Destination Code being reported. An NPA is commonly referred to as an Area Code. The number format is NXX (where N=2-9, X=0-9). Current Area Codes* WebTelcoData.US: View switch detail by CLLI. Input a switch CLLI code: (Building CLLIs will not work here) Tip: If you do not know the full CLLI for the switch you're looking for - use the … sk l200thiiα