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: 221F ONVOY, LLC - IA

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
319-251 2 Anamosa IA   635   2019-09-19   
319-251 4 Anamosa IA   635   2021-03-14   
319-251 5 Anamosa IA   635   2021-03-14   
319-253 2 Hillsboro IA   634   2020-06-27   
319-253 3 Hillsboro IA   634   2020-10-05   
319-253 6 Hillsboro IA   634   2021-03-13   
319-253 8 Hillsboro IA   634   2021-06-11   
319-253 9 Hillsboro IA   634   2021-08-28   
319-254 3 Olds IA   634   2021-05-10   
319-254 4 Olds IA   634   2021-03-13   
319-254 5 Olds IA   634   2020-06-27   
319-254 6 Olds IA   634   2021-10-30   
319-255 2 Columbus Junction IA   634   2020-06-27   
319-255 4 Columbus Junction IA   634   2020-11-28   
319-255 5 Columbus Junction IA   634   2020-11-28   
319-255 6 Columbus Junction IA   634   2021-06-11   
319-255 7 Columbus Junction IA   634   2021-10-30   
319-257 0 Winfield IA   634   2021-11-17   
319-257 2 Winfield IA   634   2020-06-27   
319-257 4 Winfield IA   634   2021-05-10   
319-257 8 Winfield IA   634   2021-03-13   
319-257 9 Winfield IA   634   2021-10-04   
319-258 3 Salem IA   634   2021-03-13   
319-258 5 Salem IA   634   2020-06-27   
319-261 9 Cedar Rapids IA   635   2016-12-16   
319-264 1 Oelwein IA   635   2017-11-23   
319-264 2 Oelwein IA   635   2018-04-13   
319-264 6 Oelwein IA   635   2019-09-19   
319-264 8 Oelwein IA   635   2020-01-27   
319-271 1 Independence IA   635   2017-05-19   
319-271 2 Independence IA   635   2017-05-19   
319-271 3 Independence IA   635   2018-04-15   
319-271 6 Independence IA   635   2019-09-19   
319-271 8 Independence IA   635   2019-09-19   
319-271 9 Independence IA   635   2020-01-27   
319-281 0 Hudson IA   635   2018-04-15   
319-281 3 Hudson IA   635   2021-03-14   
319-281 4 Hudson IA   635   2021-03-14   
319-284 4 Oelwein IA   635   2013-04-04   
319-284 6 Oelwein IA   635   2016-03-25   
319-284 8 Oelwein IA   635   2016-03-25   
319-289 7 Cedar Rapids IA   635   2021-03-14   
319-299 2 Belle Plaine IA   635   2021-09-18   
319-299 3 Belle Plaine IA   635   2021-05-07   
319-299 4 Belle Plaine IA   635   2021-12-10   
319-300 7 Waterloo IA   635   2019-09-19   
319-302 3 Center Point IA   635   2019-09-19   
319-302 4 Center Point IA   635   2021-03-14   
319-302 5 Center Point IA   635   2021-03-14   
319-302 7 Center Point IA   635   2021-04-24   

<< 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 >>

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.