| District of Maryland area codes: 410 | |
|---|---|
| Country | United States |
| State/Province | Maryland |
| Major City | Baltimore |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 410-998 | Baltimore | Pikesville, MD | Verizon Maryland |
| 410-999 | Baltimore City | Baltimore, MD | Baltimore-washington Telephone (bwt) |
| 410-555 | Used in movie | Easton, MD | Used in movie |
There are 783 prefixes, In the code area, the major cities are Annapolis, MD;Arbutus, MD;Arnold, MD;Baltimore, MD. The major city is Baltimore.