Local Calling Guide
Area code/prefix search
NPA: 307
[Rate centres in NPA 307]
[Dial plan for NPA 307]
<< 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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 307-387
| 3 |
Gillette |
WY |
CHYNWYMAQMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
654 |
|
2021-12-03 |
|
| 307-387
| 4 |
Gillette |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2022-01-02 |
|
| 307-387
| 5 |
Gillette |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2022-01-02 |
|
| 307-387
| 6 |
Gillette |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-10-12 |
|
| 307-387
| 7 |
Gillette |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2025-12-24 |
|
| 307-387
| 8 |
Gillette |
WY |
CHYNWYRF2MD |
939H COMMIO, LLC |
654 |
|
2022-07-29 |
|
| 307-387
| 9 |
Gillette |
WY |
CHYNWYMAQMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
654 |
|
2021-12-23 |
|
| 307-388
| A |
Worland |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
|
|
| 307-388
| 0 |
Worland |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
|
|
| 307-388
| 1 |
Worland |
WY |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
2025-05-09 |
|
| 307-388
| 2 |
Worland |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
|
|
| 307-388
| 3 |
Worland |
WY |
|
145J TERRA NOVA TELECOM INC. |
654 |
|
2025-07-14 |
|
| 307-388
| 4 |
Worland |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
|
|
| 307-388
| 5 |
Worland |
WY |
|
145J TERRA NOVA TELECOM INC. |
654 |
|
2026-03-16 |
|
| 307-388
| 6 |
Worland |
WY |
|
792K CHARTER IP ENABLED SERVICES, LLC |
654 |
|
2015-11-27 |
|
| 307-388
| 7 |
Worland |
WY |
CHYNWYMAX9X |
879G TELEPORT COMMUNICATIONS AMERICA WY-LLC |
654 |
|
2021-03-25 |
|
| 307-388
| 8 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2018-04-23 |
|
| 307-388
| 9 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2015-01-25 |
|
| 307-389
| A |
Rock Springs |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-390
| A |
Labarge |
WY |
CHYNWYVACM1 |
013B UNION TELEPHONE COMPANY |
654 |
|
|
|
| 307-391
| A |
Moorcroft |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
|
|
| 307-391
| 0 |
Moorcroft |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
2005-05-06 |
|
| 307-391
| 1 |
Moorcroft |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2009-10-26 |
|
| 307-391
| 2 |
Moorcroft |
WY |
|
792K CHARTER IP ENABLED SERVICES, LLC |
654 |
|
2026-03-29 |
|
| 307-391
| 6 |
Moorcroft |
WY |
|
145J TERRA NOVA TELECOM INC. |
654 |
|
2025-07-14 |
|
| 307-391
| 9 |
Moorcroft |
WY |
CSPRWYMAXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
654 |
|
2016-05-20 |
|
| 307-392
| A |
Border |
WY |
BOISIDMAX2X |
9416 LEVEL 3 COMMUNICATIONS, LLC - WY |
652 |
|
|
|
| 307-392
| 0 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2012-12-13 |
|
| 307-392
| 1 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2012-12-13 |
|
| 307-392
| 2 |
Border |
WY |
BOISIDMAX2X |
9416 LEVEL 3 COMMUNICATIONS, LLC - WY |
652 |
|
2012-11-09 |
|
| 307-392
| 3 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2012-12-13 |
|
| 307-392
| 4 |
Border |
WY |
BOISIDMAX2X |
9416 LEVEL 3 COMMUNICATIONS, LLC - WY |
652 |
|
2006-08-12 |
|
| 307-392
| 5 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2019-09-07 |
|
| 307-392
| 6 |
Border |
WY |
BOISIDMAXPX |
508J CENTURYLINK COMMUNICATIONS, LLC |
652 |
|
2014-07-29 |
|
| 307-392
| 7 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2007-04-27 |
|
| 307-392
| 8 |
Border |
WY |
BOISIDMAXIX |
450F ONVOY, LLC - WY |
652 |
|
2011-06-05 |
|
| 307-392
| 9 |
Border |
WY |
BOISIDPZ4MD |
073H TELNYX LLC |
652 |
|
2019-03-01 |
|
| 307-393
| A |
Evanston |
WY |
CHYNWYRFDS0 |
581H AIRUS, INC. - WY |
654 |
|
|
|
| 307-393
| 0 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2021-07-11 |
|
| 307-393
| 1 |
Evanston |
WY |
CHYNWYRFDS0 |
581H AIRUS, INC. - WY |
654 |
|
2021-05-22 |
|
| 307-393
| 2 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2021-07-11 |
|
| 307-393
| 3 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-10-28 |
|
| 307-393
| 4 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-10-28 |
|
| 307-393
| 5 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-10-28 |
|
| 307-393
| 6 |
Evanston |
WY |
CHYNWYMAXGX |
624H ONVOY SPECTRUM, LLC |
654 |
|
2021-07-19 |
|
| 307-393
| 7 |
Evanston |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2023-07-23 |
|
| 307-393
| 8 |
Evanston |
WY |
CHYNWYMAXGX |
624H ONVOY SPECTRUM, LLC |
654 |
|
2021-11-26 |
|
| 307-393
| 9 |
Evanston |
WY |
CHYNWYMAXGX |
624H ONVOY SPECTRUM, LLC |
654 |
|
2021-11-26 |
|
| 307-394
| A |
Casper |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
|
|
| 307-394
| 0 |
Casper |
WY |
CHYNWY07GMD |
5562 METROPCS, INC. |
654 |
|
2021-11-11 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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