Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 516C AT&T CORP.

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
773-666 5 Chicago Zone 04-Humboldt IL CHCGILCLXOX  358   2011-07-19   
773-688 5 Chicago Zone 05-Austin IL CHCGILCLXOX  358   2011-08-18   
773-701 6 Chicago Zone 10-Beverly IL CHCGILCLXOX  358   2006-05-02   
773-799 8 Chicago Zone 04-Humboldt IL CHCGILCLXOX  358   2006-07-07   
773-912 6 Chicago Zone 08-Portsmouth IL CHCGILCLXOX  358   2006-07-07   
773-966 4 Chicago Zone 07-Stewart IL CHCGILCLXOX  358   2006-07-07   
773-974 2 Chicago Zone 11-O'Hare IL CHCGILCLXOX  358   2006-05-02   
775-316 3 Hawthorne NV RENONV034MD  720   2025-01-22   
775-360 5 Reno NV RENONV034MD  720   2013-08-29   
775-376 A Reno NV RENONV034MD  720      
775-376 1 Reno NV RENONV034MD  720   2005-05-21   
775-376 8 Reno NV RENONV034MD  720   2009-10-21   
775-382 0 Beatty NV   721   2025-11-12   
775-387 A Cottonwood Creek NV RENONV034MD  720      
775-387 7 Cottonwood Creek NV RENONV034MD  720   2008-03-09   
775-413 5 Crystal Bay NV RENONV034MD  720   2011-08-19   
775-434 7 Carson City NV RENONV034MD  720   2008-03-18   
775-436 3 Lund NV RENONV034MD  720   2025-01-22   
775-452 2 Duckwater-Currant-Nyala NV RENONV034MD  720   2025-01-22   
775-453 9 Reno NV RENONV034MD  720   2010-08-04   
775-456 3 Empire NV RENONV034MD  720   2025-01-22   
775-457 3 Imlay NV RENONV034MD  720   2025-01-22   
775-464 A Austin NV RENONV034MD  720      
775-464 7 Austin NV RENONV034MD  720   2010-01-18   
775-476 3 Sutcliffe NV RENONV034MD  720   2008-03-18   
775-480 2 Mina NV RENONV034MD  720   2025-01-22   
775-501 A Reno NV RENONV034MD  720      
775-501 5 Reno NV RENONV034MD  720   2014-11-13   
775-502 3 Reno NV RENONV034MD  720   2015-07-20   
775-518 5 Lovelock NV RENONV034MD  720   2025-01-22   
775-520 2 Crescent Valley NV RENONV034MD  720   2025-01-15   
775-526 5 Stagecoach NV RENONV034MD  720   2011-08-19   
775-549 2 Ely NV RENONV034MD  720   2025-01-22   
775-563 3 Pahrump NV   721   2025-11-12   
775-568 A Winnemucca NV RENONV034MD  720   2025-01-22   
775-568 7 Winnemucca NV RENONV034MD  720   2025-01-22   
775-574 7 Nixon NV RENONV034MD  720   2008-03-18   
775-583 6 Virginia City NV RENONV034MD  720   2011-08-19   
775-590 2 Eureka-Diamond Valley NV RENONV034MD  720   2025-01-22   
775-637 6 Gabbs NV RENONV034MD  720   2025-01-22   
775-644 A Baker NV RENONV034MD  720      
775-644 7 Baker NV RENONV034MD  720   2012-02-13   
775-653 2 McGill NV RENONV034MD  720   2025-01-22   
775-837 1 Lathrop Wells NV   721   2025-11-12   
775-870 9 Reno NV RENONV034MD  720   2014-07-15   
775-909 5 Silver Springs NV RENONV034MD  720   2011-08-19   
775-922 5 Spring Valley-Cherry Creek NV RENONV034MD  720   2025-01-22   
775-931 2 Battle Mountain NV RENONV034MD  720   2025-01-15   
775-946 4 Schurz NV RENONV034MD  720   2025-01-22   
775-966 2 Fish Lake Valley NV RENONV034MD  720   2025-01-22   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.