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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 | 443 | 2856000 | 2856999 | G |
| Maryland | 443 | 3198000 | 3198999 | G |
| Maryland | 443 | 4300000 | 4300999 | G |
| Maryland | 443 | 4301000 | 4301999 | X |
| Maryland | 443 | 4302000 | 4302999 | G |
| Maryland | 443 | 4303000 | 4303999 | G |
| Maryland | 443 | 4304000 | 4304999 | X |
| Maryland | 443 | 4305000 | 4305999 | X |
| Maryland | 443 | 4306000 | 4306999 | G |
| Maryland | 443 | 4309000 | 4309999 | G |
| Maryland | 443 | 9174000 | 9174999 | G |
| Maryland | 443 | 9175000 | 9175999 | G |
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