Yahoo Web Search

  1. About 22,900,000 search results
  1. The North American Numbering Plan (NANP) is a telephone numbering plan for World Zone 1, which comprises twenty-five distinct regions in twenty countries primarily in North America, including the Caribbean. Some North American countries, most notably Mexico, do not participate in the NANP.

  2. North American Numbering Plan. The North American Numbering Plan ( NANP) is a telephone numbering plan. It includes 24 countries and territories, including the United States, Canada, Bermuda, and 17 nations of the Caribbean. There are three-digit area codes and seven-digit telephone numbers.

  3. N11 code. North American Numbering Council. List of North American Numbering Plan area codes. North American Numbering Plan expansion. Number pooling. Numbering Resource Utilization/Forecast Report.

  4. People also ask

    How does the North American numbering plan work?

    How are telephone numbers assigned in the NANP?

    When was the telephone numbering plan first developed?

    How does the telephone numbering plan work in Canada?

    • History
    • Administration
    • Numbering Plan
    • Expansion
    • Countries and Territories
    • Dialing Procedures
    • Alphabetic Mnemonic System
    • Cellular Services
    • Toll Charges
    • Number Portability

    From its be­gin­nings in 1876 and through­out the first part of the 20th cen­tury, the Bell Sys­tem grew from es­sen­tially local or re­gional tele­phone sys­tems. These sys­tems ex­panded by grow­ing their sub­scriber bases, as well as in­creas­ing their ser­vice areas by im­ple­ment­ing ad­di­tional local ex­changes that were in­ter­con­nected with tie trunks. It was the re­spon­si­bil­ity of each local ad­min­is­tra­tion to de­sign tele­phone num­ber­ing plans that ac­com­mo­dated the local re­quire­ments and growth.As a re­sult, the Bell Sys­tem as a whole de­vel­oped into an un­or­ga­nized sys­tem of many dif­fer­ing local num­ber­ing sys­tems. The di­ver­sity im­peded the ef­fi­cient op­er­a­tion and in­ter­con­nec­tion of ex­changes into a na­tion­wide sys­tem for long-dis­tance tele­phone com­mu­ni­ca­tion. By the 1940s, the Bell Sys­tem set out to unify the var­i­ous num­ber­ing plans in ex­is­tence to pro­vide a uni­fied, sys­tem­atic ap­proach to route tele­phone calls ac...

    The NANP is ad­min­is­tered by the North Amer­i­can Num­ber­ing Plan Administrator (NANPA, for­merly Ad­min­is­tra­tion).This func­tion is over­seen by the Fed­eral Com­mu­ni­ca­tions Com­mis­sion, which as­sumed the re­spon­si­bil­ity upon the breakup of the Bell Sys­tem. The FCC so­lic­its pri­vate sec­tor con­tracts for the role of the ad­min­is­tra­tor. Be­fore the breakup of the Bell Sys­tem, ad­min­is­tra­tion of the North Amer­i­can Num­ber­ing Plan was per­formed by AT&T's Cen­tral Ser­vices Or­ga­ni­za­tion. In 1984, this func­tion was trans­ferred to Bell Com­mu­ni­ca­tions Re­search (Bell­core), a com­pany cre­ated by the di­vesti­ture man­date to per­form ser­vices for the newly cre­ated local ex­change car­ri­ers. On Jan­u­ary 19, 1998, the NANPA func­tion was trans­ferred to the IMS di­vi­sion of Lock­heed Mar­tin in Wash­ing­ton, D.C. In 1999, the con­tract was awarded to Neustar, a com­pany spun off from Lock­heed for this pur­pose. In 2004, and again in 2012, the co...

    The vi­sion and goal of the ar­chi­tects of the North Amer­i­can Num­ber­ing Plan was a sys­tem by which tele­phone sub­scribers in the United States and Canada could them­selves dial and es­tab­lish a tele­phone call to any other sub­scriber with­out the as­sis­tance of switch­board op­er­a­tors. While this re­quired an ex­pan­sion of most ex­ist­ing local num­ber­ing plans, many of which re­quired only four or five dig­its to be di­aled, or even fewer in small com­mu­ni­ties, the plan was de­signed to en­able local tele­phone com­pa­nies to make as few changes as pos­si­ble in their sys­tems.

    Canada and the United States have ex­pe­ri­enced rapid growth in the num­ber of area codes, par­tic­u­larly be­tween 1990 and 2005. The wide­spread adop­tion of fax, modem, and mo­bile phone com­mu­ni­ca­tion, as well as the dereg­u­la­tion of local telecom­mu­ni­ca­tion ser­vices in the United States in the mid-1990s, in­creased the de­mand for tele­phone num­bers. The Fed­eral Com­mu­ni­ca­tions Com­mis­sion al­lowed telecom­mu­ni­ca­tion com­pa­nies to com­pete with the in­cum­bent local ex­change car­ri­ers for ser­vices, usu­ally by forc­ing the ex­ist­ing sole ser­vice provider to lease in­fra­struc­ture to other local providers. Be­cause of the orig­i­nal de­sign of the num­ber­ing plan and the tele­phone switch­ing net­work that as­sumed only a sin­gle provider, num­ber al­lo­ca­tions had to be made in 10,000-num­ber blocks even when much fewer num­bers were re­quired for each new ven­dor. Due to the pro­lif­er­a­tion of ser­vice providers in some num­ber­ing plan areas, man...

    Of all states or ter­ri­to­ries, the U.S. state of Cal­i­for­nia has the largest num­ber of area codes as­signed, fol­lowed by Texas, Florida and New York, while most coun­tries of the Caribbean use only one. Many Caribbean codes were as­signed based on al­pha­betic ab­bre­vi­a­tions of the ter­ri­tory name, as in­di­cated in the third col­umn of the fol­low­ing table (Let­ter code). This fol­lows the tra­di­tional let­ter as­sign­ments on tele­phone dials. For some Pa­cific is­lands, the NANPA area code is the same as the coun­try codethat was dis­con­tin­ued upon mem­ber­ship in the NANP. Mem­ber­ship in the NANP brings sig­nif­i­cant ad­van­tages for coun­tries in the vicin­ity of the United States and Canada, which usu­ally are al­ready the top di­al­ing des­ti­na­tions. Both coun­tries also orig­i­nate most of the tourism busi­ness for the Caribbean. This is en­hanced by the in­te­gra­tion from shar­ing the same di­al­ing pro­ce­dures, with­out in­ter­na­tional ac­cess codes, a...

    The struc­ture of the North Amer­i­can Num­ber­ing Plan per­mits im­ple­men­ta­tion of local dial plans in each plan area, de­pend­ing on re­quire­ments. When mul­ti­ple NPA codes serve an area in an over­lay arrange­ment, ten-digit (10D) di­al­ing is re­quired. Seven-digit (7D) di­al­ing may be per­mis­si­ble in areas with sin­gle area codes. De­pend­ing on the re­quire­ment of toll alert­ing, it may be nec­es­sary to pre­fix a tele­phone num­ber with 1. The NANPA pub­lishes dial plan in­for­ma­tion for in­di­vid­ual area codes. The stan­dard dial plans in most cases are as fol­lows: The num­ber of dig­its di­aled is un­re­lated to being a local call or a toll call when there is no toll alert­ing. Al­low­ing 7D local dial across an area code bound­ary, which is un­com­mon today, re­quires cen­tral of­fice code pro­tec­tion, lo­cally if using toll alert­ing, across the en­tire area code oth­er­wise, to avoid as­sign­ment of the same seven-digit num­ber on both sides. Most areas per­...

    Many dials on mod­ern tele­phones in use in the NANP ser­vice areas main­tain the tra­di­tion of al­pha­betic di­al­ing. Usu­ally each push­but­ton from digit 2 to 9 also dis­plays three let­ters, which is stan­dard­ized in ISO 9995-8 and, in Eu­rope, E.161. His­tor­i­cally, the let­ters Q and Z were omit­ted, al­though some mod­ern tele­phones con­tain them. SMS-ca­pa­blede­vices have all 26 let­ters. The al­pha­bet is ap­por­tioned to the but­tons as fol­lows: No let­ters are typ­i­cally mapped to keys 1 and 0, al­though some cor­po­rate voice­mailsys­tems use 1 for Q and Z, and some old tele­phones as­signed the Z to the digit 0. Orig­i­nally, this scheme was used as a mnemonic de­vice for tele­phone num­ber pre­fixes. When tele­phone num­bers in the United States were stan­dard­ized in the mid-20th cen­tury to seven dig­its, the first two dig­its of the ex­change pre­fix were ex­pressed as let­ters rather than num­bers, using the tele­phone ex­change name. Be­fore World War II,...

    The North Amer­i­can Num­ber­ing Plan does not set aside spe­cial non-ge­o­graphic area codes ex­clu­sively for cel­lu­lar phones. Only one re­gional ex­cep­tion ex­ists in area code 600 in Canada.In many other na­tional num­ber­ing plans out­side the NANP, mo­bile ser­vices are as­signed sep­a­rate pre­fixes. Cell phone num­bers in the NANP are al­lo­cated within each area code from spe­cial cen­tral of­fice pre­fixes and calls to them are billed at the same rate as any other call. Con­se­quently, the caller pays pric­ing model adopted in other coun­tries, in which calls to cel­lu­lar phones are charged at a higher na­tion­wide rate, but in­com­ing mo­bile calls are not charged to the mo­bile user, could not be im­ple­mented. In­stead, North Amer­i­can cel­lu­lar tele­phone sub­scribers are also gen­er­ally charged for re­ceiv­ing calls (sub­scriber pays). This has dis­cour­aged mo­bile users from pub­lish­ing their tele­phone num­ber. How­ever, price com­pe­ti­tion among car­ri­er...

    Calls be­tween dif­fer­ent coun­tries and ter­ri­to­ries of the NANP are not typ­i­cally charged at do­mes­tic rates. For ex­am­ple, most long-dis­tance plans may charge a Cal­i­for­nia sub­scriber a higher rate for a call to British Co­lum­bia than for a call to New York, even though both des­ti­na­tions are within the NANP. Sim­i­larly, calls from Bermuda to U.S. num­bers (in­clud­ing 1-800 num­bers, which are nor­mally thought of as toll-free) incur in­ter­na­tional rates. This is be­cause many of the is­land na­tions im­ple­mented a plan of sub­si­diz­ing the cost of local phone ser­vices by di­rectly charg­ing higher pric­ing levies on in­ter­na­tional long-dis­tance services.[citation needed] Be­cause of these higher fees, scams had taken ad­van­tage of cus­tomers' un­fa­mil­iar­ity with pric­ing struc­ture to call the legacy re­gional area code 809. Some scams lured cus­tomers from the United States and Canada into plac­ing ex­pen­sive calls to the Caribbean, by rep­re­sent­i...

    The Telecom­mu­ni­ca­tions Act of 1996 (47 U.S.C. § 251 (b)(2)) au­tho­rizes the Fed­eral Com­mu­ni­ca­tions Com­mis­sion (FCC) to re­quire all local ex­change car­ri­ers (LECs) to offer local num­ber porta­bil­ity. The FCC reg­u­la­tions were en­acted on June 27, 1996, with changes to take ef­fect in the one hun­dred largest Met­ro­pol­i­tan Sta­tis­ti­cal Areasby Oc­to­ber 1, 1997 and else­where by De­cem­ber 31, 1998. The FCC di­rected the North Amer­i­can Num­ber­ing Coun­cil (NANC) to se­lect one or more pri­vate-sec­tor can­di­dates for the local num­ber porta­bil­ity ad­min­is­tra­tor (LNPA) function,in a man­ner akin to the se­lec­tion of the North Amer­i­can Num­ber­ing Plan Ad­min­is­tra­tor (NANPA). The toll-free tele­phone num­bers in NPA 800, 888, 877, 866, 855, 844, and 833 have been portable through the Re­spOrgsys­tem since 1993.

  5. Within the North American Numbering Plan (NANP), the administration defines standard and permissive dialing plans, specifying the number of mandatory digits to be dialed for local calls within the area code, as well as alternate, optional sequences, such as adding the prefix 1 before the telephone number.

  1. Searches related to North American Numbering Plan wikipedia

    list of North American Numbering Plan wikipediahouston 2
  1. People also search for