Maryland Phone Prefixes in 240-3XX Area Code

Phone Prefixes in the 240-3XX Area Code

Prefix Usage Primary City
(240) 346 Wireless Waldorf
(240) 387 Landline Chevy Chase
(240) 373 Landline Odenton
(240) 305 Wireless Beltsville
(240) 398 Wireless Cabin John
(240) 362 Landline Cumberland
(240) 359 Landline Indian Head
(240) 348 Landline Oxon Hill
(240) 379 Landline Frederick
(240) 316 Wireless Chevy Chase
(240) 354 Wireless Beltsville
(240) 307 Landline Emmitsburg
(240) 330 Wireless Cabin John
(240) 310 Wireless Hagerstown
(240) 358 Landline Damascus
(240) 376 Landline Hughesville
(240) 397 Wireless Frederick
(240) 331 Landline Mount Rainier
(240) 300 Wireless Waldorf
(240) 347 Landline Hagerstown
(240) 364 Landline Gaithersburg
(240) 344 Wireless Frederick
(240) 303 Landline Clinton
(240) 319 Wireless Columbia
(240) 365 Landline Damascus
(240) 384 Landline Callaway
(240) 363 Landline Kensington
(240) 353 Wireless Beltsville
(240) 313 Landline Hagerstown
(240) 328 Landline Rockville
(240) 375 Wireless Capitol Heights
(240) 380 Wireless Cabin John
(240) 351 Wireless Beltsville
(240) 361 Landline Gaithersburg
(240) 381 Wireless Silver Spring
(240) 337 Landline Mount Rainier
(240) 324 Landline Clarksville
(240) 368 Landline Waldorf
(240) 352 Landline La Plata
(240) 367 Wireless Frederick
(240) 374 Landline Laurel
(240) 320 Landline Waldorf
(240) 385 Landline Myersville
(240) 394 Wireless Mount Airy
(240) 304 Wireless Mount Rainier
(240) 357 Wireless Frederick
(240) 372 Wireless Gaithersburg
(240) 309 Wireless Leonardtown
Prefix Usage Primary City
(240) 317 Landline Callaway
(240) 308 Wireless Damascus
(240) 318 Landline Clinton
(240) 371 Landline Mount Rainier
(240) 392 Landline Oxon Hill
(240) 339 Landline Upper Marlboro
(240) 396 Landline Mount Rainier
(240) 325 Landline Damascus
(240) 383 Wireless Chevy Chase
(240) 395 Landline Bethesda
(240) 355 Wireless Beltsville
(240) 315 Landline Frederick
(240) 366 Landline Williamsport
(240) 306 Landline Gaithersburg
(240) 393 Wireless Cabin John
(240) 332 Landline Newburg
(240) 321 Wireless Oakland
(240) 386 Landline Gaithersburg
(240) 314 Landline Rockville
(240) 378 Landline Cumberland
(240) 340 Wireless Bethesda
(240) 389 Landline Sandy Spring
(240) 343 Wireless Hancock
(240) 350 Wireless Beltsville
(240) 326 Landline Upper Marlboro
(240) 333 Landline Mount Rainier
(240) 338 Wireless Silver Spring
(240) 399 Landline Chevy Chase
(240) 390 Landline Sandy Spring
(240) 391 Landline Mount Rainier
(240) 341 Landline Adamstown
(240) 336 Landline Bethesda
(240) 349 Landline La Plata
(240) 329 Landline Hagerstown
(240) 370 Wireless Bethesda
(240) 342 Landline Sandy Spring
(240) 334 Landline Mount Rainier
(240) 369 Landline Mount Airy
(240) 377 Landline Indian Head
(240) 335 Landline Glenn Dale
(240) 323 Landline Emmitsburg
(240) 356 Landline Frederick
(240) 327 Landline Gaithersburg
(240) 360 Wireless Laurel
(240) 312 Landline Capitol Heights
(240) 345 Landline Sandy Spring
(240) 388 Wireless Gaithersburg
(240) 382 Landline Hagerstown
(240) 322 Landline Mccoole

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