Area Code 240
Area Code 240 is designated as Maryland (Hagerstown, Rockville, Cumberland and western Maryland, overlays with 301)

To see more detail info of exchange 240-XXX,please click the links below.




Exchanges in this area code......
First Previous 1 2 3 4 5
240-892   240-893   240-895   240-897   240-898   240-899   240-912   240-920   240-925   240-929   240-936   240-938   240-949   240-976   240-979   240-986   240-988   240-993   240-994   240-997   240-999  
Other Area Code List

201
202
203
204
205
206
207
208
209
210
242
246
248
250
251
252
253
254
256
260