Local Calling Guide
Area code/prefix search
NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]
NXX: 621
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
605-621 | A | Madison | SD | WTTWSDCO0MD | 907D INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. | 640 | |||
605-621 | 0 | Madison | SD | SXFLSDCOX1X | 073H TELNYX LLC | 640 | 2023-09-30 | ||
605-621 | 1 | Madison | SD | SXFLSDPS1MD | 939H COMMIO, LLC | 640 | 2023-10-13 | ||
605-621 | 2 | Madison | SD | SXFLSDPS1MD | 939H COMMIO, LLC | 640 | 2023-10-13 | ||
605-621 | 3 | Madison | SD | SXFLSDPS1MD | 939H COMMIO, LLC | 640 | 2023-10-13 | ||
605-621 | 4 | Madison | SD | SXFLSDPS1MD | 939H COMMIO, LLC | 640 | 2023-10-13 | ||
605-621 | 5 | Madison | SD | SXFLSDPS1MD | 939H COMMIO, LLC | 640 | 2023-10-13 | ||
605-621 | 6 | Madison | SD | 6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 640 | 2024-04-10 | |||
605-621 | 9 | Madison | SD | WTTWSDCO0MD | 907D INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. | 640 | 2023-05-04 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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