| Prefix 301-976 | |
|---|---|
| Type | Unknown |
| Introduced | 10/17/2005 |
| company | Baltimore-washington Telephone (bwt) |
| County | |
| State | Maryland |
| Country | United States |
| Primary city | |
The area code prefix is introduced in 10/17/2005, the phone number type is Unknown. The major cities in the area are Aspen Hill, MD;Bethesda, MD;Bowie, MD;Chillum, MD;
| Area Code 301 | |
|---|---|
| Time Zone | Eastern (UTC-05:00) |
| Major City | Baltimore |
| State/Province | Maryland |
| Country | United States |