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Some geographic area codes are similar to the toll-free codes, e.g., 801, 818, 860. Toll-free numbers are also sometimes confused with 900-numbers, for which the telephone company bills the callers at rates far in excess of long-distance service rates for services such as recorded information or live chat.
This feature group permits two types of calls. If a user dials 1 + area code + seven-digit number, the long-distance call is handled by a default carrier chosen by the user. Alternatively, a user dials 101 + four-digit carrier code + area code + seven-digit number, and the call is handled by the carrier specified by the carrier code. [6]
10-10-321, 10-10-345, 10-10-220, and 10-10-987 are United States long-distance phone services best known for their prolific television and direct mail advertising in the late 1990s. 10-10-321 was the first mass-marketed service of its type. 10-10-345 was owned by AT&T, and the rest were all owned by MCI, which is now part of Verizon.
011 — access code for international direct dialing all destinations outside the NANP; 01 — international access code using operator assistance for all destinations outside the NANP; 101-xxxx — Carrier access code for selecting an alternative long-distance carrier; xxxx is the carrier identification code (CIC).
When the states in the US and provinces in Canada were assigned area codes in 1947 by the American Telephone and Telegraph Company (AT&T), direct distance dialing (DDD) using the area code and the local number was introduced starting in 1951, eventually eliminating the use of the prefix. After that, the local telephone providers designated "00 ...
To give telephone users the possibility of opting for a different carrier on a call-by-call basis, carrier access codes (CAC) were devised. These consist of the digits 101 followed by the four-digit CIC. The CAC is dialed as a prefix immediately before dialing a long-distance telephone number.
In many areas of the NANP, the domestic trunk code (long-distance access code) must also be dialed along with the area code for long-distance calls even within the same numbering plan area. For example, to call a number in Regina in area code 306: 306 xxx xxxx — within Regina, Lumsden and other local areas
Interstate long-distance or inter-LATA interstate long-distance, the most common group, is the one for which long-distance carriers are usually chosen by telephone customers. Another form of long-distance call, increasingly relevant to more U.S. states, is known as an inter-LATA intrastate long-distance call. This refers to a calling area ...