Local Calling Guide
Area code/prefix search
Monticello, UT
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 435-298
| A |
MNTIUT140MD |
832J E. FIBER SAN JUAN, LLC |
660 |
|
|
|
| 435-298
| 8 |
|
832J E. FIBER SAN JUAN, LLC |
660 |
|
2022-01-15 |
|
| 435-419
| A |
SLKDUTBTAMD |
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-419
| 0 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-419
| 1 |
|
871E ONVOY, LLC - UT |
660 |
|
2020-12-20 |
|
| 435-419
| 2 |
|
871E ONVOY, LLC - UT |
660 |
|
2019-05-21 |
|
| 435-419
| 3 |
|
871E ONVOY, LLC - UT |
660 |
|
2019-05-21 |
|
| 435-419
| 4 |
|
871E ONVOY, LLC - UT |
660 |
|
2018-11-12 |
|
| 435-419
| 5 |
|
871E ONVOY, LLC - UT |
660 |
|
2020-08-08 |
|
| 435-419
| 6 |
|
7530 TELEPORT COMMUNICATIONS AMERICA, LLC - UT |
660 |
|
2020-11-17 |
|
| 435-419
| 7 |
|
871E ONVOY, LLC - UT |
660 |
|
2020-12-20 |
|
| 435-419
| 8 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
2025-10-05 |
|
| 435-419
| 9 |
|
5727 FIRSTDIGITAL TELECOM, LLC - UT |
660 |
|
2017-12-20 |
|
| 435-459
| A |
SLKDUTBTAMD |
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 0 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 1 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 2 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 3 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 4 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-459
| 7 |
|
145J TERRA NOVA TELECOM INC. |
660 |
|
2025-07-10 |
|
| 435-459
| 8 |
|
073H TELNYX LLC |
660 |
|
2021-02-11 |
|
| 435-459
| 9 |
|
6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT |
660 |
|
|
|
| 435-587
| A |
MNTIUTXCDS0 |
4429 CITIZENS TELECOM-UTAH DBA FRONTIER COMM OF UT |
660 |
|
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|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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