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City Carrier Name:Columbia
This is the United States City Carrier Name:Columbia 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 |
|---|---|---|---|---|
| Maryland | 410 | 7940000 | 7940999 | G |
| Maryland | 410 | 7941000 | 7941999 | G |
| Maryland | 410 | 7942000 | 7942999 | G |
| Maryland | 410 | 7943000 | 7943999 | G |
| Maryland | 410 | 7944000 | 7944999 | G |
| Maryland | 410 | 7947000 | 7947999 | G |
| Maryland | 410 | 7948000 | 7948999 | G |
| Maryland | 410 | 7949000 | 7949999 | G |
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