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Ten-digit local dialing is here

Arizona has run out of telephone number prefixes in the region served by the 602 area code. This has happened because of increased demand for new telephone num-bers used for such services as fax machines, pagers, wireless telephones, second phone lines, voice mail and other competitive services. To remedy this situation, Arizona has added two new area codes ­ 480 and 623. As a result of the new area codes, it is now neces-sary to dial ten-digits for local calls between select area codes.

Effective Date. The five-month transition period has ended. On September 1, 1999, ten-digit local dialing between the 602 and 480 and 623 area codes became mandatory. If you dial seven-digits between area codes or the wrong area code, a recording will ask you to re-dial using a ten-digit number.

Ten-digit local dialing. The introduction of Arizona's new 480 and 623 area codes will not affect your local calling area (that area in which calls are local). However, the way you dial local calls between the 602 and 480 and 623 area codes will change. To make a local call between area codes, it will be necessary to dial ten digits (The three-digit area code plus the seven-digit phone number). Do not dial a "1" or "0" before the area code when dialing a local call. Dialing a "1" incorrectly may prevent the call from being completed.

To complete a local call within the same area code, dial only the seven-digit telephone number. However, any local call can be made by using all ten digits. On September 1, 1999, ten-digit dialing is mandatory for local calls between the 602 and 480 and 623 area codes.

The following chart illustrates the different types of telephone dialing. The example assumes that the caller is in the 602 area code.

Type of Call Required Dialing Example Charge
Within local calling area, in same area code 7- or 10-digit dialing 555-1023 or 602-555-1023 None
Within local calling area,to another area code 10-digit dialing 480-555-0123 or 623-555-0123 None
Direct-dial long distance "1" plus 10 digits 1-520-555-9876 Regular Charge
Operator-assisted long distance "0" plus 10 digits 0-520-555-9876 Regular Charge

How the new area codes will impact your home telephone service. If you have a new area code, notify those who call you and make plans to change your area code on such things as stationery and checks. If appropriate, notify your alarm monitoring company of your ten-digit number. Also, be sure to reprogram any automat-ic-dial or speed-dial numbers and fax machines by September 1, 1999. If you experience difficulty calling the new area codes, contact your telephone system vendor.

Be sure everyone in your household knows your full ten-digit number and understands how to place local calls using the ten-digit pattern. Pay particular attention to the needs of children, the disabled, and the elderly.

How ten-digit local dialing impacts business telephone service. Starting now businesses in the 602 area code should make sure they are ready for mandatory ten-digit dialing on September 1, 1999.

  • Make sure your telecommunications equipment (such as PBX systems, burglar alarms or security systems, electronic telephone sets, auto-dial systems or multi-line key systems) can complete local calls using ten digits. You may need to reprogram or upgrade your equipment to accept Arizona's 602, 480 and 623 area code numbers. Contact your equipment provider to ask about available options and changes to your equip-ment that may be necessary. Changes to your equipment need to be made before September 1, 1999.
  • If you have call-forwarding, automatic-dial or speed-dial features, re-enter existing local numbers with ten-digit numbers if the area code is different from your area code.
  • Inform customers, clients, colleagues and vendors that dialing local calls to your business may require ten digits if their area code is different than yours. Suggest that they contact their telephone system vendor to ask about changes that may be required.
  • Update all printed materials, such as stationery, checks, business cards, advertisements, brochures and catalogs to include your ten-digit number.
  • Notify your alarm service provider to update records and equipment.

    Other communications services that might be affected by ten-digit dialing.
  • Owners of coin-operated telephones should contact their equipment vendor for specific equipment requirements.
  • Cellular and PCS services, pagers and other wireless communications devices do not need to be repro-grammed for ten-digit dialing. However, you may need to reprogram speed-dialing and call-forwarding numbers to accommodate the new area codes.
Prefixes remaining in the 602 area code
200231261294340389432489540593647692744798867943
201232262295341390433490541594650696745799868944
202233263296343392436493542597651697746801870952
203234264298347395437494543599653698747803871953
204235265299351397438495547601656701749805881954
205236266300352398439498548604658702750806882955
206237267302353399440499549605660708751808885956
207238268304355401442501550608662709757809886957
208239269305356402444504553613663710758810887971
209240270306359403445505558615664712761817889973
210241271307360404447506559616665714762818896978
212242272309361405448508560617667716763819901980
213243273310363406450509562618669717765822903989
215244274313364407452510564619670719766823904992
216246275315365408453513565620672720768826906993
217248276316369409454514568621673721769828908995
219249277318370410455519569622674722770840909996
220250278319371414462521571624677723771841910997
221251279320372415463522573625678724779843912999
222252280321375416467524574629679725781851913
223253284323376417468525576630680728787852914
224254285324377418469526577631681729788859916
225255286329378420470527578635683737789861918
226256287331379422478528579637684738790862919
227257289335381426479530588639685739791863920
228258290336382428482531589640686740793864923
229259291338384430484532590645689741794865938
230260292339387431485534591646690743796866942

Prefixes in the 480 area code
218348413460496567633671731777814838892927965990
283350419461497575636675732778816839893929966991
288354421464502585638677733782820844894940967994
301357423467503592641693735783821854895941968998
303366424471507595642699736784827855897945969
312367425472515596643704752785829857898946970
314368429473517598644705753786830858899947981
317373441474529607649706755795831860902948982
325380443475539609654713756797832874905949983
327383446477545610655715759802833883917951984
333384449481552612657718767804834884921961985
342391451483554614659726774807835888922962986
345394456488557627661727775812836890924963987
346396457491563632668730776813837891926964988

Prefixes in the 623 area code
214388492581773853880936
245393516582780856907937
247412535583815869915939
297434536584825872925972
322435544587842873930974
334458546643845875931975
349465561691846876932977
362476566742847877933979
374486572764848878934
386487580772849879935
 
Customers with the following prefixes should contact their local service provider as to which area code they will use
281332466628695760
282337518648703792
293344570682707794
308385586687734824
326427606688748850
330459626694754

  • Building security systems may need to be reprogrammed or upgraded.
  • Notify your alarm monitoring company of your area code change. Your equipment may need to be reprogrammed by the mandatory date of December 1, 1999.

Ten-digit local dialing test numbers. Businesses can test their telephone equipment to determine if it recognizes the new 480 and 623 area codes by calling these test numbers: 602-241-0000, 480-731-3007 or 623-566-6112. If a call to the test number does not go through, contact your equipment provider. If your equipment is not the cause of the problem, call your telephone system vendor to determine the source of your problem.

Phone services that will not change. There are no changes in 911 emergency calls or calls to 500, 700, 800, 888, 877, 900, and 950 numbers. Rates for your local telephone service and long distance calls are not affected by this change.

Costs incurred. Because the area code modification is the result of normal growth in Arizona, any costs incurred for updating systems and revising printed materials will be the responsibility of the individual telephone customer.

For more information. A website location is available on ten-digit dialing and the new 480 and 623 area codes: http://www.uswest.com/areacodes

Para informacion en español, Ilame 1-800-564-1121.

See the inside panel for a full listing of prefixes (the first three digits of a telephone number) that will have the new 480 and 623 area codes and those that will remain the 602 area code.

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