Telephone Exchange Names - Standardization

Standardization

In 1955, AT&T distributed a list of recommended exchange names that were the result of studies to minimize misunderstandings when spoken. There are no exchange names for the number sequences 55x, 57x, 95x and 97x as the mappings for the digits 5, 7 and 9 had no vowels, thus making it difficult finding names with those consonant combinations. As a result, those numbers were originally never assigned to exchanges. On the telephone dial, letters were mapped to digits using the assignments in the table (right).

• 22x: ACademy, BAldwin, CApital, CAstle
• 23x: ADams, BElmont, BEverly, CEdar, CEnter, CEntral
• 24x: CHapel, CHerry, CHestnut, CHurchill, CIrcle
• 25x: ALgonquin, ALpine, BLackburn, CLearbrook, CLearwater, CLifford, CLinton
• 26x: AMherst, ANdrew, COlfax, COlony, COngress
• 27x: BRidge, BRoad(way), BRown(ing), CRestview, CRestwood
• 28x: ATlantic, ATlas, ATwater, ATwood, AVenue, BUtler
• 29x: AXminster, AXtel, CYpress
• 32x: DAvenport, DAvis, EAst(gate), FAculty, FAirfax, FAirview
• 33x: DEerfield, DEwey, EDgewater, EDgewood, EDison, FEderal
• 34x: DIamond, DIckens, FIeldbrook, FIeldstone, FIllmore, FIrestone
• 35x: ELgin, ELliot, ELmwood, FLanders, FLeetwood
• 36x: EMerson, EMpire, ENdicott, FOrest, FOxcroft
• 37x: DRake, DRexel, ESsex, FRanklin, FRontier
• 38x: DUdley, DUnkirk, DUpont, EVergreen, FUlton
• 39x: EXbrook, EXeter, EXport, EXpress
• 42x: GArden, GArfield, HAmilton, HArrison, HAzel
• 43x: GEneral, GEneva, HEmlock, HEmpstead, IDlewood
• 44x: GIbraltor,GIbson, GIlbert, HIckman, HIckory, HIllcrest, HIlltop
• 45x: GLadstone, GLencourt, GLendale, GLenview, GLobe
• 46x: HObart, HOmestead, HOpkins, HOward, INgersoll
• 47x: GRamercy, GRanite, GReenfield, GReenleaf, GReenwood, GRidley, GRover
• 48x: HUbbard, HUdson, HUnter, HUntley, HUxley, IVanhoe
• 49x: GYpsy, HYacinth, HYatt
• 52x: JAckson, LAfayette, LAkeside, LAkeview, LAmbert, LAwrence
• 53x: JEfferson, KEllogg, KEystone, LEhigh, LEnox, LExington
• 54x: KImball, KIngsdale, KIngswood, LIberty, LIncoln, LInden
• 56x: JOhn, JOrdan, LOcust, LOgan, LOwell
• 58x: JUniper, JUno, JUstice, LUdlow, LUther
• 59x: LYceum, LYndhurst, LYnwood, LYric
• 62x: MAdison, MAin, MArket, MAyfair, NAtional
• 63x: MEdford, MElrose, MErcury, NEptune, NEwton, NEwtown
• 64x: MIdway, MIlton, MIssion, MItchell, NIagra
• 65x: OLdfield, OLive, OLiver, OLympia, OLympic
• 66x: MOhawk, MOntrose, MOrris, NOrmandy, NOrth(field)
• 67x: ORange, ORchard, ORegon, ORiole, ORleans, OSborne
• 68x: MUrdock, MUrray, MUseum, MUtual, OVerbrook, OVerland
• 69x: MYrtle, OWen, OXbow, OXford
• 72x: PAlace, PArk(view), PArk(way), RAndolph, RAymond, SAratoga
• 73x: PErshing, REd(field), REd(wood), REgent, REpublic
• 74x: PIlgrim, PIoneer, RIver(side), RIver(view), SHadyside, SHerwood
• 75x: PLateau, PLaza, PLeasant, PLymouth, SKyline
• 76x: POplar, POrter, ROckwell, ROger(s), SOuth(field)
• 77x: PRescott, PResident, PRospect, SPring, SPruce
• 78x: STate, STerling, STillwell, STory, SUffolk, SUnset,
• 79x: PYramid, SWathmore, SWift, SWinburne, SYcamore
• 82x: TAlbot, TAlmadge, TAylor, VAlley, VAndyke
• 83x: TEmple(ton), TEnnyson, TErminal, TErrace, VErnon
• 84x: THornwell, TIlden, VIctor(ia), VIking, VInewood
• 85x: ULrick, ULster, ULysses
• 86x: TOwnsend, UNderhill, UNion, UNiversity, VOlunteer
• 87x: TRemont, TRiangle, TRinity, TRojan, UPtown
• 88x: TUcker, TUlip, TUrner, TUxedo
• 89x: TWilight, TWinbrook, TWining, TWinoaks
• 92x: WAbash, WAlker, WAlnut, WArwick, WAverly
• 93x: WEbster, WEllington, WElls, WEst(more), YEllowstone
• 94x: WHitehall, WHitney, WIlliam(s), WIlson, WIndsor
• 96x: WOodland, WOodlawn, WOodward, WOrth, YOrktown
• 98x: YUkon
• 99x: WYandotte, WYman, WYndown

Fictitious phone numbers starting with 55 used the fictitious exchange name KLondyke (55). The letters Q and Z were never used in the naming system, but Z was often mapped on the telephone dial to the digit 0 (zero).