Maryland Area Codes
Maryland has 5 area codes. Located in the Northeast region of the United States.
All Area Codes in Maryland
| Area Code | Primary City / Region | Full Number Format |
|---|---|---|
| 240 | Germantown , Maryland |
+1 (240) XXX-XXXX
|
| 301 | Germantown , Maryland |
+1 (301) XXX-XXXX
|
| 410 | Baltimore , Maryland |
+1 (410) XXX-XXXX
|
| 443 | Baltimore , Maryland |
+1 (443) XXX-XXXX
|
| 667 | Baltimore , Maryland |
+1 (667) XXX-XXXX
|
How to Dial Maryland Area Codes
Calling within the US
To call a phone number in Maryland from anywhere within the United States:
1 + (240) + XXX-XXXX
- Dial 1 (the US/Canada country code)
- Dial the area code (e.g., 240)
- Dial the 7-digit local number
Calling from outside the US
To call Maryland from an international location:
[Exit Code] + 1 + (240) + XXX-XXXX
Replace [Exit Code] with your country's international access code
(e.g., 00 from most European countries, 0011 from Australia).
Emergency Numbers
| 911 | Police, Fire, Ambulance (Emergency) |
| 311 | Non-emergency municipal services |
| 211 | Community services and information |
| 988 | Suicide & Crisis Lifeline |
About Maryland Area Codes
Maryland is served by 5 area codes within the North American Numbering Plan (NANP). The area codes are distributed across different cities and regions of the state to accommodate the demand for phone numbers.
All Maryland phone numbers use the international country code +1, followed by the three-digit area code and a seven-digit local number, for a total of 11 digits when dialing internationally.
Some areas of Maryland have overlay area codes, meaning two or more area codes serve the same geographic area. In these regions, 10-digit dialing is mandatory for all local calls.
Maryland at a Glance
| State | Maryland |
|---|---|
| Country Code | +1 |
| Area Codes | 5 |
| Region | Northeast |
| Codes List |
240
, 301
, 410
, 443
, 667
|
Maryland Map
Map of Maryland area code regions