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: 515J IP HORIZON LLC

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
970-610 9 Fruita CO   656   2022-04-29   
970-636 4 Yampa CO DNVTCOZICMD  656   2024-08-08   
970-647 1 Julesburg CO DNVTCOZICMD  656   2024-07-12   
970-649 0 Rifle CO   656   2022-09-11   
970-650 1 Montrose CO   656   2022-04-29   
970-659 3 Hillrose CO DNVTCOZICMD  656   2024-07-12   
970-678 8 Basalt CO   656   2022-09-16   
970-684 0 Palisade CO   656   2022-09-22   
970-696 2 Ridgway CO DNVTCOZICMD  656   2024-08-08   
970-709 8 Grand Lake CO DNVTCOZICMD  656   2024-07-12   
970-721 4 Mead CO   656   2022-09-22   
970-727 0 Crested Butte CO   656   2022-09-22   
970-729 4 Telluride CO   656   2022-09-16   
970-740 1 Sterling CO   656   2022-04-29   
970-741 0 Meeker CO   656   2022-09-22   
970-772 8 Gilcrest CO DNVTCOZICMD  656   2024-07-12   
970-784 1 Gunnison CO   656   2022-04-29   
970-791 8 Loveland CO   656   2022-04-29   
970-792 0 Fort Collins CO   656   2022-04-23   
970-794 1 Granby CO   656   2022-09-22   
970-804 1 Greeley CO   656   2022-04-23   
970-806 8 Johnstown-Milliken CO   656   2022-04-29   
970-807 1 Aspen CO DNVTCOZICMD  656   2024-07-12   
970-813 1 Bayfield CO   656   2022-09-11   
970-814 1 Durango CO   656   2022-04-29   
970-830 0 Parachute CO DNVTCOZICMD  656   2024-07-12   
970-831 4 Brush CO   656   2022-09-16   
970-839 1 Silt CO   656   2022-09-16   
970-841 8 Craig CO   656   2022-04-29   
970-866 5 La Salle CO DNVTCOZICMD  656   2024-07-12   
970-868 0 Hot Sulphur Springs CO DNVTCOZICMD  656   2024-07-12   
970-890 9 Oak Creek CO DNVTCOZICMD  656   2024-07-12   
970-894 1 Berthoud CO DNVTCOZICMD  656   2024-07-12   
970-896 0 Steamboat Springs CO   656   2022-04-29   
970-902 6 Grand Junction CO   656   2022-04-29   
970-904 2 Vail CO   656   2022-04-29   
970-919 5 Silverton CO DNVTCOZICMD  656   2024-08-08   
970-932 0 Estes Park CO   656   2022-09-11   
970-935 0 Breckenridge CO   656   2022-09-11   
970-937 0 De Beque CO   656   2022-09-22   
970-955 1 Mancos CO DNVTCOZICMD  656   2024-07-12   
970-972 8 Eaton CO   656   2022-09-11   
970-994 1 Olathe CO   656   2022-09-22   
970-995 0 New Castle CO   656   2022-09-16   
970-996 0 Hayden CO   656   2022-09-22   
970-997 2 Kremmling CO DNVTCOZICMD  656   2024-07-12   
971-394 A Portland OR PTLDORWAXGY  672      
971-394 1 Portland OR   672   2021-04-24   
972-236 3 Carrollton TX   552   2016-01-04   
972-366 9 Venus TX   552   2018-01-11   
972-408 9 Grand Prairie TX   552   2017-07-14   
972-430 0 Blue Ridge TX   552   2017-12-15   
972-433 8 Prosper TX   552   2017-12-15   
972-734 0 Princeton EMS TX   552   2017-12-15   
972-737 8 Allen TX   552   2016-03-28   
972-833 9 Ferris TX   552   2017-12-15   
972-846 1 Bristol EMS TX   552   2017-12-15   
973-221 1 Hawthorne NJ   224   2015-03-25   
973-250 5 Branchville NJ   224   2006-03-13   
973-272 4 Passaic NJ   224   2006-02-09   
973-295 9 Madison NJ   224   2016-05-07   
973-354 0 Belleville NJ   224   2016-05-08   
973-363 0 Hawthorne NJ   224   2016-05-08   
973-369 0 Livingston NJ   224   2015-03-25   
973-369 9 Livingston NJ   224   2016-05-08   
973-409 5 Newfoundland NJ   224   2015-03-25   
973-419 7 Orange NJ   224   2005-12-19   
973-435 1 Little Falls NJ   224   2015-03-25   
973-529 9 Netcong NJ   224   2015-03-25   
973-554 0 Rockaway NJ   224   2017-07-09   
973-601 4 Hopatcong NJ   224   2016-05-07   
973-658 9 Boonton NJ   224   2013-08-08   
973-671 7 Millburn NJ   224   2016-05-08   
973-780 4 Bloomfield NJ   224   2006-04-01   
973-788 9 Millburn NJ   224   2015-03-25   
973-833 9 South Orange NJ   224   2016-05-07   
973-860 9 Bloomfield NJ   224   2017-07-09   
973-870 4 Paterson NJ   224   2006-02-10   
973-888 0 Whippany NJ   224   2016-05-07   
973-936 5 Morristown NJ   224   2013-05-01   
973-938 0 Paterson NJ   224   2016-06-05   
973-938 1 Paterson NJ   224   2016-06-05   
973-957 9 Rockaway NJ   224   2015-03-25   
973-969 8 Belleville NJ   224   2015-03-25   
978-212 7 Hudson MA   128   2016-07-01   
978-227 9 Leominster MA   128   2016-07-01   
978-233 5 Hamilton MA   128   2016-07-01   
978-237 3 Lawrence MA   128      
978-237 9 Lawrence MA   128      
978-247 0 Andover MA   128   2019-04-26   
978-252 9 Ashburnham MA   128   2015-10-26   
978-272 3 Groton MA   128      
978-272 4 Groton MA   128      
978-272 8 Groton MA   128      
978-277 4 Templeton MA   128   2015-10-30   
978-284 1 Wilmington MA   128   2015-03-27   
978-312 0 Ipswich MA   128   2015-10-26   
978-321 1 Winchendon MA   128   2015-10-30   
978-321 8 Winchendon MA   128   2016-07-01   
978-333 8 Hudson MA   128   2015-03-27   

<< 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 83 84 85 86 87 88 89 90 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.