The way ANAC works is fairly simple: A technician will call a local ANAC's phone number (in Connecticut, they would dial 970) this number connects to a computer at a local central office which uses a voice synthesizer or digital samples to "speak" the phone number of the line calling in. The main purpose of this system is to allow phone company technicians to identify which telephone line they are connected to. Because this system is meant for phone company technicians, the ANAC system works with unlisted and even numbers with caller ID blocking.
Some ANACs are very regional or local in scope, while others are state or area code-wide. There appears to be no national cohesive system for them. Every telephone company (big or small) can determine its own ANAC for each individual central office, leading to a mish-mash of overlapping and/or spotty coverage. Some large telephone companies have toll-free numbers set-up, but these numbers remain undisclosed to prevent abusive use.
There are some private national toll-free numbers that use automatic number identification and then have a computer read back the number that is calling, but these are not intended for use in identifying your phone number, they are used in order for you to confirm the phone you are calling from so that a computer can automatically pull up your account for the next available customer service representitive. However, if one were to call up one of these numbers, listen for the number confirmation and hang up, they would in effect be using this system as if it were an ANAC.
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For easier reference, the list is presented by area code. In some regions, there are several numbers depending on the telephone company and/or the area you are calling from as there can be several central offices serving some areas. All are local numbers.
Information is presented in the following form:
Area code: ANAC approximate geographic region
201: 958 Hackensack/Jersey City/Newark/Paterson, NJANAC numbers
United States
202: 811 District of Columbia
203: 970 CT
205: 300-222-2222 Birmingham, AL
205: 300-555-5555 Many small towns in AL
205: 300-648-1111 Dora, AL
205: 300-765-4321 Bessemer, AL
205: 300-798-1111 Forestdale, AL
205: 300-833-3333 Birmingham
205: 557-2311 Birmingham, AL
205: 811 Pell City/Cropwell/Lincoln, AL
205: 841-1111 Tarrant, AL
205: 908-222-2222 Birmingham, AL
206: 411 WA (Not US West)
207: 958 ME
209: 830-2121 Stockton, CA
209: 211-9779 Stockton, CA
210: 830 Brownsville/Laredo/San Antonio, TX
210: 951 Brownsville/Laredo/San Antonio, TX (GTE)
212: 958 Manhattan, NY
213: 114 Los Angeles, CA (GTE)
213: 1223 Los Angeles, CA (Some 1AESS switches)
213: 211-2345 Los Angeles, CA (English response)
213: 211-2346 Los Angeles, CA (DTMF response)
213: 61056 Los Angeles, CA
214: 570 Dallas, TX
214: 790 Dallas, TX (GTE)
214: 970-222-2222 Dallas, TX
214: 970-611-1111 Dallas, TX (Southwestern Bell)
215: 511 Philadelphia, PA
215: 958 Philadelphia, PA
216: 331 Akron/Canton/Cleveland/Lorain/Youngstown, OH
216: 959-9892 Akron/Canton/Cleveland/Lorain/Youngstown, OH
219: 550 Gary/Hammond/Michigan City/Southbend, IN
219: 559 Gary/Hammond/Michigan City/Southbend, IN
301: 2002006969 Hagerstown/Rockville, MD
301: 958-9968 Hagerstown/Rockville, MD
303: 958 Aspen/Boulder/Denver/Durango/Grand Junction, CO
305: 200-555-1212 Ft. Lauderdale/Key West/Miami, FL
305: 200200200200200 Ft. Lauderdale/Key West/Miami, FL
305: 780-2411 Ft. Lauderdale/Key West/Miami, FL
310: 114 Long Beach, CA (On many GTE switches)
310: 1223 Long Beach, CA (Some 1AESS switches)
310: 211-2345 Long Beach, CA (English response)
310: 211-2346 Long Beach, CA (DTMF response)
312: 200 Chicago, IL
312: 290 Chicago, IL
312: 1-200-8825 Chicago, IL (Last four change rapidly)
312: 1-200-555-1212 Chicago, IL
313: 200-200-2002 Ann Arbor/Dearborn/Detroit, MI
313: 200-222-2222 Ann Arbor/Dearborn/Detroit, MI
313: 200200200200200 Ann Arbor/Dearborn/Detroit, MI
315: 953 Syracuse/Utica, NY
315: 958 Syracuse/Utica, NY
315: 998 Syracuse/Utica, NY
317: 310-222-2222 Indianapolis/Kokomo, IN
317: 559-222-2222 Indianapolis/Kokomo, IN
317: 743-1218 Indianapolis/Kokomo, IN
334: 5572411 Montgomery, AL
334: 5572311 Montgomery, AL
401: 200-200-4444 RI
401: 222-2222 RI
402: 311 Lincoln, NE
404: 311 Atlanta, GA
404: 990 Atlanta, GA
405: 890-7777777 Enid/Oklahoma City, OK
405: 897 Enid/Oklahoma City, OK
407: 200-222-2222 Orlando/West Palm Beach, FL (Bell South)
407: 520-3111 Orlando/West Palm Beach, FL (United)
408: 760 San Jose, CA
408: 940 San Jose, CA
409: 951 Beaumont/Galveston, TX
410: 200-6969 Annapolis/Baltimore, MD
410: 200-200-6969 Annapolis/Baltimore, MD
410: 200-555-1212 Annapolis/Baltimore, MD
410: 811 Annapolis/Baltimore, MD
412: 711-6633 Pittsburgh, PA
412: 711-4411 Pittsburgh, PA
413: 958 Pittsfield/Springfield, MA
413: 200-555-5555 Pittsfield/Springfield, MA
414: 330-2234 Fond du Lac/Green Bay/Milwaukee/Racine, WI
415: 200-555-1212 San Francisco, CA
415: 211-2111 San Francisco, CA
415: 2222 San Francisco, CA
415: 640 San Francisco, CA
415: 760-2878 San Francisco, CA
415: 7600-2222 San Francisco, CA
419: 311 Toledo, OH
423: 200-200-200 Chatanooga, Johnson City, Knoxville , TN
501: 511 AR
502: 2002222222 Frankfort/Louisville/Paducah/Shelbyville, KY
502: 997-555-1212 Frankfort/Louisville/Paducah/Shelbyville, KY
503: 611 Portland, OR
503: 999 Portland, OR (GTE)
504: 99882233 Baton Rouge/New Orleans, LA
504: 201-269-1111 Baton Rouge/New Orleans, LA
504: 998 Baton Rouge/New Orleans, LA
504: 99851-0000000000 Baton Rouge/New Orleans, LA
508: 958 Fall River/New Bedford/Worchester, MA
508: 200-222-1234 Fall River/New Bedford/Worchester, MA
508: 200-222-2222 Fall River/New Bedford/Worchester, MA
508: 26011 Fall River/New Bedford/Worchester, MA
509: 560 Spokane/Walla Walla/Yakima, WA
510: 760-1111 Oakland, CA
512: 830 Austin/Corpus Christi, TX
513: 380-55555555 Cincinnati/Dayton, OH
515: 5463 Des Moines, IA
515: 811 Des Moines, IA
516: 958 Hempstead/Long Island, NY
516: 968 Hempstead/Long Island, NY
517: 200-222-2222 Bay City/Jackson/Lansing, MI
517: 200200200200200 Bay City/Jackson/Lansing, MI
518: 511 Albany/Schenectady/Troy, NY
518: 997 Albany/Schenectady/Troy, NY
518: 998 Albany/Schenectady/Troy, NY
540: 211 Roanoke, VA (GTE)
540: 311 Roanoke, VA (GTE)
541: 200 Bend, OR
603: 200-222-2222 NH
606: 997-555-1212 Ashland/Winchester, KY
606: 711 Ashland/Winchester, KY
607: 993 Binghamton/Elmira, NY
609: 958 Atlantic City/Camden/Trenton/Vineland, NJ
610: 958 Allentown/Reading, PA
610: 958-4100 Allentown/Reading, PA
612: 511 Minneapolis/St.Paul, MN
614: 200 Columbus/Steubenville, OH
614: 571 Columbus/Steubenville, OH
615: 200200200200200 Chatanooga/Knoxville/Nashville, TN
615: 2002222222 Chatanooga/Knoxville/Nashville, TN
615: 830 Nashville, TN
616: 200-222-2222 Battle Creek/Grand Rapids/Kalamazoo, MI
617: 200-222-1234 Boston, MA
617: 200-222-2222 Boston, MA
617: 200-444-4444 Boston, MA (Woburn, MA)
617: 220-2622 Boston, MA
617: 958 Boston, MA
618: 930 Alton/Cairo/Mt.Vernon, IL
619: 211-2001 San Diego, CA
619: 211-2121 San Diego, CA
659: 220-2622 Newmarket, NH
703: 211 VA
703: 511-3636 Culpeper/Orange/Fredericksburg, VA
703: 811 Alexandria/Arlington/Roanoke, VA
704: 311 Asheville/Charlotte, NC
707: 211-2222 Eureka, CA
708: 1-200-555-1212 Chicago/Elgin, IL
708: 1-200-8825 Chicago/Elgin, IL (Last four change rapidly)
708: 200-6153 Chicago/Elgin, IL
708: 724-9951 Chicago/Elgin, IL
713: 380 Houston, TX
713: 811 Humble, TX
713: 380-5555-5555 Houston, TX
714: 114 Anaheim, CA (GTE)
714: 211-2121 Anaheim, CA (PacBell)
714: 211-2222 Anaheim, CA (Pacbell)
714: 211-7777 Anaheim, CA (Pacbell)
716: 511 Buffalo/Niagara Falls/Rochester, NY (Rochester Tel)
716: 990 Buffalo/Niagara Falls/Rochester, NY (Rochester Tel)
717: 711 Coaldale/Lansford/Summit Hill, PA (Alltel)
717: 958 Harrisburg/Scranton/Wilkes-Barre, PA
718: 958 Bronx/Brooklyn/Queens/Staten Island, NY
770: 780-2311 Atlanta/Marietta/Norcross, GA
802: 2-222-222-2222 Vermont
802: 200-222-2222 Vermont
802: 1-700-222-2222 Vermont
802: 111-2222 Vermont
804: 990 Virginia Beach, VA
805: 114 Bakersfield/Santa Barbara, CA
805: 211-2345 Bakersfield/Santa Barbara, CA
805: 211-2346 Bakersfield/Santa Barbara, CA (Returns DTMF)
805: 830 Bakersfield/Santa Barbara, CA
810: 200200200200200 Flint/Pontiac/Southfield/Troy, MI
810: 311 Pontiac/Southfield/Troy, MI
812: 410-555-1212 Evansville, IN
813: 311 Ft. Meyers/St. Petersburg/Tampa, FL
815: 200-3374 Crystal Lake, IL
815: 270-3374 Crystal Lake, IL
815: 770-3374 Crystal Lake, IL
815: 290 La Salle/Rockford, IL
817: 211 Ft. Worth/Waco, TX
817: 970-611-1111 Ft. Worth/Waco, TX (Southwestern Bell)
818: 1223 Pasadena, CA (Some 1AESS switches)
818: 211-2345 Pasadena, CA (English response)
818: 211-2346 Pasadena, CA (DTMF response)
860: 970 CT
903: 970-611-1111 Tyler, TX
904: 200-222-222 Jackonsville/Pensacola/Tallahasee, FL
906: 1-200-222-2222 Marquette/Sault Ste. Marie, MI
907: 811 AK
908: 958 New Brunswick, NJ
909: 111 Riverside/San Bernardino, CA (GTE)
910: 200 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC
910: 311 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC
910: 988 Fayetteville/Greensboro/Raleigh/Winston-Salem, NC
914: 990-1111 Peekskill/Poughkeepsie/White Plains/Yonkers, NY
916: 211-0007 Sacramento, CA (Pac Bell)
916: 461 Sacramento, CA (Roseville Telephone)
919: 200 Durham, NC
919: 711 Durham, NC
919: 958-1114 Durham, NC
954: 200-555-1212 Ft. Lauderdale, FL
954: 200200200200200 Ft. Lauderdale, FL
954: 780-2411 Ft. Lauderdale, FL