Local Calling Guide
Area code/prefix search
West Spearfish, WY
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 307-312
| A |
SXFLSDCHIMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
640 |
|
|
|
| 307-312
| 0 |
|
081F BANDWIDTH.COM CLEC, LLC - WY |
640 |
|
2012-08-18 |
|
| 307-312
| 1 |
|
081F BANDWIDTH.COM CLEC, LLC - WY |
640 |
|
2012-08-21 |
|
| 307-312
| 2 |
|
450F ONVOY, LLC - WY |
640 |
|
2017-04-20 |
|
| 307-312
| 3 |
|
450F ONVOY, LLC - WY |
640 |
|
2018-11-12 |
|
| 307-312
| 4 |
|
450F ONVOY, LLC - WY |
640 |
|
2019-09-07 |
|
| 307-312
| 5 |
|
450F ONVOY, LLC - WY |
640 |
|
2019-09-07 |
|
| 307-312
| 6 |
|
450F ONVOY, LLC - WY |
640 |
|
2020-02-23 |
|
| 307-312
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
640 |
|
2017-06-08 |
|
| 307-312
| 8 |
|
073H TELNYX LLC |
640 |
|
2019-02-28 |
|
| 307-312
| 9 |
|
450F ONVOY, LLC - WY |
640 |
|
2020-06-04 |
|
| 307-407
| A |
SXFLSDCOTMD |
450F ONVOY, LLC - WY |
640 |
|
|
|
| 307-407
| 0 |
|
9416 LEVEL 3 COMMUNICATIONS, LLC - WY |
640 |
|
2023-01-27 |
|
| 307-407
| 1 |
|
450F ONVOY, LLC - WY |
640 |
|
2021-07-11 |
|
| 307-407
| 2 |
|
624H ONVOY SPECTRUM, LLC |
640 |
|
2022-01-08 |
|
| 307-407
| 3 |
|
450F ONVOY, LLC - WY |
640 |
|
2020-10-10 |
|
| 307-407
| 4 |
|
450F ONVOY, LLC - WY |
640 |
|
2020-10-10 |
|
| 307-407
| 5 |
|
624H ONVOY SPECTRUM, LLC |
640 |
|
2021-07-18 |
|
| 307-407
| 6 |
|
450F ONVOY, LLC - WY |
640 |
|
2021-03-02 |
|
| 307-407
| 7 |
|
450F ONVOY, LLC - WY |
640 |
|
2021-03-02 |
|
| 307-407
| 8 |
|
450F ONVOY, LLC - WY |
640 |
|
2021-08-27 |
|
| 307-407
| 9 |
|
624H ONVOY SPECTRUM, LLC |
640 |
|
2021-10-30 |
|
| 307-446
| A |
SXFLSDCOTMD |
450F ONVOY, LLC - WY |
640 |
|
|
|
| 307-446
| 1 |
|
450F ONVOY, LLC - WY |
640 |
|
2023-07-23 |
|
| 307-643
| A |
SPRFSDCORS1 |
9631 QWEST CORPORATION |
640 |
|
|
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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