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City Carrier Name:Helena
This is the United States City Carrier Name:Helena Area Code Database page list. You can click the title to browse the detail information.
| Region Name | National Destination Code | Sn from | Sn to | Number Type |
|---|---|---|---|---|
| Montana | 406 | 4220000 | 4220999 | G |
| Montana | 406 | 4221000 | 4221999 | G |
| Montana | 406 | 4224000 | 4224999 | G |
| Montana | 406 | 4225000 | 4225999 | G |
| Montana | 406 | 5021000 | 5021999 | G |
| Montana | 406 | 5022000 | 5022999 | G |
| Montana | 406 | 5131000 | 5131999 | G |
| Montana | 406 | 9961000 | 9961999 | G |
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