Local Calling Guide
Area code/prefix search
Lake Preston, SD
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 605-203
| A |
SXFLSDCONMD |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-203
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-203
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-203
| 2 |
|
145J TERRA NOVA TELECOM INC. |
640 |
|
2024-11-20 |
|
| 605-203
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-203
| 4 |
|
162G ONVOY, LLC - SD |
640 |
|
2012-12-19 |
|
| 605-203
| 5 |
|
624H ONVOY SPECTRUM, LLC |
640 |
|
2024-12-20 |
|
| 605-525
| A |
SXFLSDCOX6X |
363J VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM |
640 |
|
|
|
| 605-525
| 0 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-07-08 |
|
| 605-525
| 1 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-10-23 |
|
| 605-525
| 2 |
|
363J VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM |
640 |
|
2019-10-24 |
|
| 605-525
| 3 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-08-21 |
|
| 605-525
| 4 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-08-21 |
|
| 605-525
| 5 |
|
162G ONVOY, LLC - SD |
640 |
|
2019-11-07 |
|
| 605-525
| 6 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-02-22 |
|
| 605-525
| 8 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-03-13 |
|
| 605-525
| 9 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-03-13 |
|
| 605-620
| A |
SXFLSDCOTMD |
162G ONVOY, LLC - SD |
640 |
|
|
|
| 605-620
| 0 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2016-04-03 |
|
| 605-620
| 1 |
|
106F BANDWIDTH.COM CLEC, LLC - SD |
640 |
|
2012-02-06 |
|
| 605-620
| 2 |
|
5180 LEVEL 3 COMMUNICATIONS, LLC - SD |
640 |
|
2023-02-28 |
|
| 605-620
| 6 |
|
162G ONVOY, LLC - SD |
640 |
|
2013-12-18 |
|
| 605-620
| 7 |
|
162G ONVOY, LLC - SD |
640 |
|
2009-05-28 |
|
| 605-620
| 9 |
|
162G ONVOY, LLC - SD |
640 |
|
2013-12-18 |
|
| 605-632
| A |
SXFLSDCOWMD |
920F MCC TELEPHONY OF THE MID-WEST, LLC - SD |
640 |
|
|
|
| 605-632
| 1 |
|
920F MCC TELEPHONY OF THE MID-WEST, LLC - SD |
640 |
|
2010-08-14 |
|
| 605-847
| A |
LKPRSDCORS1 |
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-847
| 0 |
|
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-847
| 1 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2014-05-10 |
|
| 605-847
| 2 |
|
073H TELNYX LLC |
640 |
|
2017-03-31 |
|
| 605-847
| 3 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2014-05-10 |
|
| 605-847
| 4 |
|
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-847
| 5 |
|
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-847
| 6 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2014-05-10 |
|
| 605-847
| 7 |
|
162G ONVOY, LLC - SD |
640 |
|
2011-10-28 |
|
| 605-847
| 8 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2014-05-10 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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