Local Calling Guide
Area code/prefix search
Madison, SD
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 605-256
| A |
MDSNSDCERS1 |
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-270
| A |
SXFLSDCOX9X |
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 0 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 1 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 2 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 3 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 4 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 5 |
|
580H AIRUS, INC. - SD |
640 |
|
2019-05-13 |
|
| 605-270
| 6 |
|
145J TERRA NOVA TELECOM INC. |
640 |
|
2022-04-17 |
|
| 605-270
| 7 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-270
| 8 |
|
073H TELNYX LLC |
640 |
|
2019-09-29 |
|
| 605-270
| 9 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-291
| A |
SXFLSDCOX9X |
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-291
| 0 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-291
| 1 |
|
162G ONVOY, LLC - SD |
640 |
|
2023-08-20 |
|
| 605-291
| 2 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-291
| 3 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-10-23 |
|
| 605-291
| 4 |
|
106F BANDWIDTH.COM CLEC, LLC - SD |
640 |
|
2012-01-27 |
|
| 605-291
| 5 |
|
106F BANDWIDTH.COM CLEC, LLC - SD |
640 |
|
2018-07-01 |
|
| 605-291
| 6 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
2010-11-15 |
|
| 605-291
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
640 |
|
2017-06-03 |
|
| 605-291
| 8 |
|
073H TELNYX LLC |
640 |
|
2021-03-22 |
|
| 605-291
| 9 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
|
|
| 605-427
| A |
MDSNSDARDS0 |
7024 CLARITY TELECOM, LLC DBA BLUEPEAK |
640 |
|
|
|
| 605-480
| A |
SXFLSDCONMD |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 1 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 3 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 4 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 5 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
640 |
|
|
|
| 605-480
| 6 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-03-15 |
|
| 605-480
| 7 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-12-07 |
|
| 605-480
| 8 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-12-07 |
|
| 605-480
| 9 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-03-15 |
|
| 605-556
| A |
SXFLSDPSDS0 |
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 0 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 1 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 2 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 3 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 4 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 5 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 6 |
|
162G ONVOY, LLC - SD |
640 |
|
2021-10-10 |
|
| 605-556
| 7 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 8 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-556
| 9 |
|
7076 MIDCONTINENT COMMUNICATIONS. - SD |
640 |
|
|
|
| 605-621
| A |
WTTWSDCO0MD |
907D INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. |
640 |
|
|
|
| 605-621
| 0 |
|
073H TELNYX LLC |
640 |
|
2023-09-30 |
|
| 605-621
| 1 |
|
939H COMMIO, LLC |
640 |
|
2023-10-13 |
|
| 605-621
| 2 |
|
939H COMMIO, LLC |
640 |
|
2023-10-13 |
|
| 605-621
| 3 |
|
939H COMMIO, LLC |
640 |
|
2023-10-13 |
|
| 605-621
| 4 |
|
939H COMMIO, LLC |
640 |
|
2023-10-13 |
|
| 605-621
| 5 |
|
939H COMMIO, LLC |
640 |
|
2023-10-13 |
|
| 605-621
| 6 |
|
624H ONVOY SPECTRUM, LLC |
640 |
|
2024-12-20 |
|
| 605-621
| 7 |
|
162G ONVOY, LLC - SD |
640 |
|
2024-07-14 |
|
| 605-621
| 8 |
|
6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD |
640 |
|
2025-11-14 |
|
| 605-621
| 9 |
|
907D INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. |
640 |
|
2023-05-04 |
|
| 605-636
| A |
MDSNSDCERS1 |
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-636
| 0 |
|
9631 QWEST CORPORATION |
640 |
|
|
|
| 605-636
| 1 |
|
5180 LEVEL 3 COMMUNICATIONS, LLC - SD |
640 |
|
2023-01-07 |
|
| 605-636
| 2 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-08-21 |
|
| 605-636
| 3 |
|
162G ONVOY, LLC - SD |
640 |
|
2012-12-15 |
|
| 605-636
| 4 |
|
162G ONVOY, LLC - SD |
640 |
|
2012-12-15 |
|
| 605-636
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
640 |
|
2016-11-28 |
|
| 605-636
| 6 |
|
162G ONVOY, LLC - SD |
640 |
|
2011-07-05 |
|
| 605-636
| 7 |
|
162G ONVOY, LLC - SD |
640 |
|
2009-05-28 |
|
| 605-636
| 8 |
|
162G ONVOY, LLC - SD |
640 |
|
2020-08-21 |
|
| 605-636
| 9 |
|
9631 QWEST CORPORATION |
640 |
|
|
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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