Numbers That Temporarily Disconnect Phone ServiceMany telephone companies maintain telephone numbers which will temporarily disconnect telephone service for testing.

If your NPA is not listed, or the listing does not cover your LATA, try common numbers such as 119 (GTD5 switches) or 511.

NPA Telephone Number Geography Length of disconnection

209 999 Stockton, Fresno, Lodi, CA 100 seconds
281 325 Houston, TX 3 minutes
313 xxx-9994 Ann Arbor, Dearborn, Detroit, MI (Ameritech) 1 minute
314 511 Columbia, Jefferson City, St.Louis, MO 1 minute
404 420 Atlanta, GA 5 minutes
405 953 Enid, Oklahoma City, OK 1 minute
407 511 Orlando, FL (United Telephone) 1 minute
414 958-0013 Fond du Lac, Green Bay, Milwaukee, Racine, WI 1 minute
512 200 Austin, Corpus Christi, TX 1 minute
516 480 Hempstead, Long Island, NY 1 minute
517 xxx-9994 Bay City, Jackson, Lansing, MI (Ameritech) 1 minute
518 958 Albany, NY 1 minute
603 980 NH  
614 xxx-9894 Columbus, Steubenville, OH  
616 xxx-9994 Battle Creek, Grand Rapids, Kalamazoo, MI (Ameritech) 1 minute
713 325 Houston, TX 3 minutes
805 119 Bakersfield, Santa Barbara, CA 3 minutes
807 211 Thunder Bay, Ontario 3 minutes
810 xxx-9994 Pontiac, Southfield, Troy, MI (Ameritech) 1 minute
832 325 Houston, TX 3 minutes
906 xxx-9994 Marquette, Sault Ste. Marie, MI (Ameritech) 1 minute
919 211 or 511 Durham, NC 10 min – 1 hour