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 |
| 307-426
| 6 |
Cheyenne |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-09-14 |
|
| 307-426
| 7 |
Cheyenne |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-09-14 |
|
| 307-426
| 8 |
Cheyenne |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-09-14 |
|
| 307-427
| A |
Mammoth |
WY |
BLNGMTAS9MD |
450F ONVOY, LLC - WY |
650 |
|
|
|
| 307-427
| 0 |
Mammoth |
WY |
BLNGMTAS9MD |
450F ONVOY, LLC - WY |
650 |
|
2024-01-08 |
|
| 307-427
| 1 |
Mammoth |
WY |
BLNGMTAS9MD |
450F ONVOY, LLC - WY |
650 |
|
2023-07-23 |
|
| 307-427
| 2 |
Mammoth |
WY |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-01-16 |
|
| 307-428
| A |
Douglas |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2024-02-03 |
|
| 307-428
| 0 |
Douglas |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2024-03-07 |
|
| 307-428
| 1 |
Douglas |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2024-07-06 |
|
| 307-428
| 2 |
Douglas |
WY |
|
450F ONVOY, LLC - WY |
654 |
|
2025-03-01 |
|
| 307-428
| 3 |
Douglas |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-12-02 |
|
| 307-428
| 4 |
Douglas |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-05-04 |
|
| 307-428
| 7 |
Douglas |
WY |
|
6529 T-MOBILE USA, INC. |
654 |
|
2025-06-11 |
|
| 307-428
| 8 |
Douglas |
WY |
|
450F ONVOY, LLC - WY |
654 |
|
2025-05-21 |
|
| 307-428
| 9 |
Douglas |
WY |
CSPRWYMAXEX |
6529 T-MOBILE USA, INC. |
654 |
|
2024-02-03 |
|
| 307-429
| A |
Sheridan |
WY |
CHYNWYMAQMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
654 |
|
|
|
| 307-429
| 0 |
Sheridan |
WY |
CHYNWYMAQMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
654 |
|
2013-07-20 |
|
| 307-429
| 1 |
Sheridan |
WY |
|
792K CHARTER IP ENABLED SERVICES, LLC |
654 |
|
2014-05-05 |
|
| 307-429
| 2 |
Sheridan |
WY |
CHYNWYMAQMD |
081F BANDWIDTH.COM CLEC, LLC - WY |
654 |
|
2015-03-12 |
|
| 307-429
| 3 |
Sheridan |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2016-07-29 |
|
| 307-429
| 4 |
Sheridan |
WY |
CHYNWYMAX2X |
450F ONVOY, LLC - WY |
654 |
|
2016-07-29 |
|
| 307-429
| 5 |
Sheridan |
WY |
CHYNWYRF1MD |
073H TELNYX LLC |
654 |
|
2017-03-31 |
|
| 307-429
| 6 |
Sheridan |
WY |
CHYNWYMAX9X |
879G TELEPORT COMMUNICATIONS AMERICA WY-LLC |
654 |
|
2014-10-01 |
|
| 307-429
| 7 |
Sheridan |
WY |
CHYNWYMAXAX |
508J CENTURYLINK COMMUNICATIONS, LLC |
654 |
|
2015-03-18 |
|
| 307-429
| 8 |
Sheridan |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2014-01-15 |
|
| 307-429
| 9 |
Sheridan |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2014-04-20 |
|
| 307-430
| A |
Old Faithful |
WY |
BLNGMTAS9MD |
450F ONVOY, LLC - WY |
650 |
|
2024-02-12 |
|
| 307-430
| 0 |
Old Faithful |
WY |
BLNGMTAS9MD |
450F ONVOY, LLC - WY |
650 |
|
2024-02-12 |
|
| 307-430
| 1 |
Old Faithful |
WY |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-01-16 |
|
| 307-431
| A |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 0 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 1 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 2 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 3 |
Worland |
WY |
CHYNWYMAEMD |
9416 LEVEL 3 COMMUNICATIONS, LLC - WY |
654 |
|
2023-03-04 |
|
| 307-431
| 4 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 5 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 6 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 7 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
2012-05-31 |
|
| 307-431
| 8 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-431
| 9 |
Worland |
WY |
CHYNWYMAXIX |
6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY |
654 |
|
|
|
| 307-432
| A |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 0 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 1 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 2 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 3 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 4 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 5 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 6 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
| 307-432
| 7 |
Cheyenne |
WY |
CHYNWYMADS0 |
9636 QWEST CORPORATION |
654 |
|
|
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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