Search by Phone Number
Search by Address
The 240 area code is located in the state of Maryland, and according to Intelius data, covers roughly 1,060,740 phone numbers. Washington Southwest is the largest city within this area code with a population of about 1,052,521.
Have you received a call from a number with a 240 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County | Montgomery |
|---|---|
| Population | 1,052,521 |
| County | Prince George's |
|---|---|
| Population | 946,971 |
| County | Howard |
|---|---|
| Population | 335,411 |
| County | Frederick |
|---|---|
| Population | 287,079 |
