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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 | 9100000 | 9109999 | G |
| Maryland | 443 | 4307000 | 4307999 | G |
| Maryland | 443 | 4308000 | 4308999 | G |
| Maryland | 443 | 5354000 | 5354999 | G |
| Maryland | 443 | 5395000 | 5395999 | G |
| Maryland | 443 | 5462000 | 5462999 | G |
| Maryland | 443 | 7413000 | 7413999 | G |
| Maryland | 443 | 7414000 | 7414999 | G |
| Maryland | 443 | 8322000 | 8322999 | G |
| Maryland | 667 | 7867000 | 7867999 | G |
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