The 240 area code is serving the western part of Maryland, including Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, along with rural western Maryland. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 240 area code) below and access available caller information such as name, address, and more.
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Area Code 240 phone numbers reported as unwanted calls to the FTC in the last 30 days.
(240) 428-7311
Reducing your debt (credit cards, mortgage, student loans)
7 reports ·
(240) 353-1756
Reducing your debt (credit cards, mortgage, student loans)
5 reports ·
(240) 690-2825
Other
4 reports ·
(240) 885-6690
Dropped call or no message
4 reports ·
(240) 258-3153
Other
4 reports ·
(240) 260-5294
Calls pretending to be government, businesses, or family and friends
3 reports ·
(240) 672-0849
Other
3 reports ·
(240) 650-9197
Calls pretending to be government, businesses, or family and friends
2 reports ·
(240) 905-4442
Other
2 reports ·
(240) 570-6611
Other
2 reports ·
Area code 240 covers the western part of Maryland, including the Greater Washington, D.C. metro area, southern Maryland, and rural western Maryland.
Area code 240 is an overlay to area code 301. Area code 301 was the original area code for the entire state of Maryland. Area code 240 was introduced on June 1, 1997. A third overlay code, 227, was added on June 14, 2023. Ten-digit dialing is required for all calls within this region.
Area code 240 is a general purpose code which was placed in service on June 1, 1997.
Our reverse phone lookup will analyze the three-digit prefix of any 240 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Maryland geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
|---|---|
| SPRINT SPECTRUM, L.P. | 54 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 45 |
| VERIZON MARYLAND, INC. | 42 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 41 |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 24 |
| LEVEL 3 COMMUNICATIONS, LLC - MD | 21 |
| XO MARYLAND, LLC | 20 |
| US LEC OF MARYLAND, INC. | 16 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - MD | 12 |
| CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD | 10 |
| STARPOWER COMMUNICATIONS, LLC - MD | 10 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 9 |
| CAVALIER EAST, LLC - MD | 8 |
| COMCAST IP PHONE, LLC | 7 |
| ONVOY, LLC - MD | 6 |
| PAETEC COMMUNICATIONS, INC. - MD | 6 |
| PEERLESS NETWORK OF MARYLAND, LLC | 6 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 5 |
| BANDWIDTH.COM CLEC, LLC - MD | 4 |
| CORE COMMUNICATIONS, INC.- MD | 4 |
| SPRINT SPECTRUM, LP - MD | 4 |
| ATX COMMUNICATIONS SERVICES, LTD. | 2 |
| LIGHTWAVE COMMUNICATIONS, LLC - MD | 2 |
| LOCAL ACCESS LLC - MD | 2 |
| NUSO, LLC | 2 |
| YMAX COMMUNICATIONS CORP. - MD | 2 |
| AT&T - LOCAL | 1 |
| BALTIMORE-WASHINGTON TELEPHONE (BWT) | 1 |
| LEVEL 3 TELECOM OF MARYLAND, LLC - MD | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 1 |
| METROPCS, INC. | 1 |
| PAETEC COMMUNICATIONS, INC. - DC | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MD | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| WSHNGTNZN3 | 56 |
| WSHNGTNZN2 | 45 |
| WSNGTNZN10 | 36 |
| GAITHERSBG | 30 |
| FREDERICK | 25 |
| WALDORF | 18 |
| LAUREL236 | 17 |
| WSHNGTNZN4 | 14 |
| HAGERSTOWN | 13 |
| WSHNGTNZN5 | 12 |
| ASHTON236 | 10 |
| WSNGTNZN11 | 10 |
| LEONARDTN | 9 |
| WSNG236Z13 | 9 |
| WSNG236Z14 | 8 |
| CUMBERLAND | 7 |
| LAUREL238 | 6 |
| LXTNPKGRML | 5 |
| WSNGTNZN12 | 5 |
| WSHNGTNZN6 | 4 |
| ASHTON238 | 3 |
| BUCKEYSTN | 3 |
| DAMASCS236 | 3 |
| INDIANHEAD | 3 |
| MYERSVILLE | 3 |
| MECHANCSVL | 2 |
| NANJEMOY | 2 |
| WSNG236Z15 | 2 |
| WSNGTNZN16 | 2 |
| HUGHESVL | 1 |
| LA PLATA | 1 |
| MIDDLETOWN | 1 |
| MOUNT AIRY | 1 |
| OAKLAND | 1 |
| RIDGE | 1 |
| WILLIAMSPT | 1 |
| WSNG238Z13 | 1 |
| WSNG238Z14 | 1 |
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