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: 490J BOOST SUBSCRIBERCO L.L.C.

<< 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

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
986-244 9 Coeur D'Alene ID CRALIDXO00Z  960   2023-02-06   
986-252 A Lewiston ID SPKNWADZBMD  676      
986-252 0 Lewiston ID SPKNWADZBMD  676   2023-06-04   
986-301 5 Boise ID BOISIDPZCMD  652   2026-01-05   
986-986 6 Boise ID BOISIDPZCMD  652   2024-10-25   
989-294 6 Midland MI SGNWMIACHMD  344   2022-05-21   
989-320 5 Saginaw MI SGNWMIACHMD  344   2024-11-03   
989-320 6 Saginaw MI SGNWMIACHMD  344   2025-01-31   
989-363 5 Merrill MI BRSPMI09AMD  344   2024-07-05   
989-451 A Saginaw MI SGNWMIACHMD  344      
989-451 8 Saginaw MI SGNWMIACHMD  344   2022-06-11   
989-534 0 St Johns MI SGNWMIACHMD  344   2023-05-06   
989-585 4 Brant MI SGNWMIACHMD  344   2024-01-11   
989-587 8 Westphalia MI SGNWMIACHMD  344   2022-08-28   
989-613 5 Sheridan MI SGNWMIACHMD  344   2024-04-27   
989-795 8 Fostoria MI SGNWMIACHMD  344   2023-12-05   
989-828 1 Shepherd MI SGNWMIACHMD  344   2023-02-26   
989-900 3 Saginaw MI SGNWMIACHMD  344   2026-01-01   
989-900 5 Saginaw MI SGNWMIACHMD  344   2026-05-30   
989-932 8 Durand MI SGNWMIACHMD  344   2023-02-27   

<< 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

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.