Area Code 240 and Prefix Lookup

Prefix City
240-200 Hyattsville
240-201 Ridge
240-203 Hagerstown
240-204 Bethesda
240-205 Bethesda
240-206 Glenn Dale
240-207 Clarksburg
240-208 La Plata
240-209 Indian Head
240-210 Waldorf
240-212 Oakland
240-213 Waldorf
240-214 Charlotte Hall
240-215 Frederick
240-216 Waldorf
240-217 Hagerstown
240-218 Nanjemoy
240-219 Ridge
240-220 Poolesville
240-221 Rockville
240-222 Waldorf
240-223 Hyattsville
240-224 Gaithersburg
240-225 Frederick
240-228 Laurel
240-229 Waldorf
240-230 Hughesville
240-231 Hagerstown
240-232 Hyattsville
240-233 Issue
240-234 Mount Rainier
240-235 Bethesda
240-236 Frederick
240-237 Callaway
240-238 Rockville
240-239 Leonardtown
240-241 Bethesda
240-242 Bethesda
240-243 Gaithersburg
240-244 Bethesda
240-245 Glenn Dale
240-246 Gaithersburg
240-247 Hyattsville
240-248 Ridge
240-249 Charlotte Hall
240-250 Brandywine
240-251 Cascade
240-252 Gaithersburg
240-253 Upper Marlboro
240-254 Hughesville
240-255 Poolesville
240-256 Leonardtown
240-257 Nanjemoy
240-258 Ridge
240-260 Hyattsville
240-261 Gaithersburg
240-262 Callaway
240-263 Bethesda
240-264 Beltsville
240-265 Bethesda
240-266 Hyattsville
240-267 Hagerstown
240-268 Rockville
240-269 Hyattsville
240-270 Waldorf
240-271 Bethesda
240-272 Bethesda
240-273 Hyattsville
240-274 Bethesda
240-275 Grantsville
240-276 Rockville
240-277 Bethesda
240-278 Laurel
240-279 Waldorf
240-280 Laurel
240-281 Bethesda
240-282 Charlotte Hall
240-283 Silver Spring
240-284 Frostburg
240-285 Frederick
240-286 Bethesda
240-287 Hancock
240-288 Thurmont
240-289 Temple Hills
240-290 Hyattsville
240-291 Hagerstown
240-292 Silver Spring
240-293 Hyattsville
240-294 Laurel
240-295 Laurel
240-296 Hyattsville
240-297 Riverdale
240-298 Leonardtown
240-299 Waldorf
240-300 Waldorf
240-302 Laurel
240-303 Clinton
240-304 Hyattsville
240-305 Beltsville
240-306 Gaithersburg
240-307 Emmitsburg
240-308 Clarksburg
240-309 Silver Spring
240-310 Hagerstown
240-312 Capitol Heights
240-313 Hagerstown
240-314 Rockville
240-315 Frederick
240-316 Bethesda
240-317 Callaway
240-318 Clinton
240-319 Columbia
240-320 Waldorf
240-321 Oakland
240-322 Westernport
240-323 Emmitsburg
240-324 Dayton
240-325 Clarksburg
240-326 Upper Marlboro
240-327 Gaithersburg
240-328 Rockville
240-329 Hagerstown
240-330 Bethesda
240-331 Hyattsville
240-332 Issue
240-333 Hyattsville
240-334 Glenn Dale
240-335 Glenn Dale
240-336 Bethesda
240-337 Hyattsville
240-338 Silver Spring
240-339 Upper Marlboro
240-340 Bethesda
240-341 Frederick
240-342 Sandy Spring
240-343 Hancock
240-344 Frederick
240-345 Sandy Spring
240-346 Waldorf
240-347 Hagerstown
240-348 Clinton
240-349 La Plata
240-350 Beltsville
240-351 Beltsville
240-352 La Plata
240-353 Beltsville
240-354 Beltsville
240-355 Beltsville
240-356 Frederick
240-357 Frederick
240-358 Clarksburg
240-359 Indian Head
240-360 Laurel
240-361 Gaithersburg
240-362 Cumberland
240-363 Silver Spring
240-364 Gaithersburg
240-365 Clarksburg
240-366 Williamsport
240-367 Frederick
240-368 Waldorf
240-369 Mount Airy
240-370 Bethesda
240-371 Hyattsville
240-372 Gaithersburg
240-373 Odenton
240-374 Laurel
240-375 Capitol Heights
240-376 Hughesville
240-377 Indian Head
240-378 Cumberland
240-379 Frederick
240-380 Bethesda
240-381 Silver Spring
240-382 Hagerstown
240-383 Bethesda
240-384 Callaway
240-385 Myersville
240-386 Gaithersburg
240-387 Bethesda
240-388 Gaithersburg
240-389 Sandy Spring
240-390 Sandy Spring
240-391 Riverdale
240-392 Hyattsville
240-393 Bethesda
240-394 Mount Airy
240-395 Bethesda
240-396 Bethesda
240-397 Frederick
240-398 Bethesda
240-399 Bethesda
240-400 Bethesda
240-401 Rockville
240-402 Riverdale
240-403 Rockville
240-404 Gaithersburg
240-405 Frederick
240-406 Rockville
240-407 Upper Marlboro
240-408 Rockville
240-409 Frederick
240-412 Waldorf
240-413 Hyattsville
240-414 Hyattsville
240-415 Frederick
240-416 Waldorf
240-417 Capitol Heights
240-418 Beltsville
240-419 Waldorf
240-420 Hagerstown
240-421 Rockville
240-422 Frederick
240-423 Silver Spring
240-424 Hyattsville
240-425 Bethesda
240-426 Bethesda
240-427 Waldorf
240-428 Rockville
240-429 Silver Spring
240-430 Silver Spring
240-431 Callaway
240-432 Beltsville
240-433 Silver Spring
240-434 Leonardtown
240-435 Waldorf
240-436 Ijamsville
240-437 Sandy Spring
240-438 Silver Spring
240-439 Frederick
240-440 Frederick
240-441 Temple Hills
240-442 Oakland
240-444 Laurel
240-445 Bethesda
240-446 Frederick
240-447 Rockville
240-448 Waldorf
240-449 Gaithersburg
240-450 Silver Spring
240-451 Thurmont
240-452 Hagerstown
240-453 Rockville
240-454 Gaithersburg
240-455 Capitol Heights
240-456 Laurel
240-457 Frederick
240-458 Waldorf
240-459 Laurel
240-460 Silver Spring
240-461 Silver Spring
240-462 Beltsville
240-463 Silver Spring
240-464 Chevy Chase
240-465 Hyattsville
240-466 Charlotte Hall
240-467 Temple Hills
240-468 Hyattsville
240-469 Hagerstown
240-470 Laurel
240-471 Silver Spring
240-472 Silver Spring
240-473 Riverdale
240-474 Gaithersburg
240-475 Silver Spring
240-476 Silver Spring
240-477 Gaithersburg
240-478 Bethesda
240-479 Temple Hills
240-480 Bethesda
240-481 Silver Spring
240-482 Bethesda
240-483 Bethesda
240-484 Laurel
240-485 Bethesda
240-486 Glenn Dale
240-487 Hyattsville
240-488 Oakland
240-489 Poolesville
240-490 Middletown
240-491 Silver Spring
240-492 Capitol Heights
240-493 Temple Hills
240-494 Hyattsville
240-495 Hyattsville
240-496 Leonardtown
240-497 Bethesda
240-498 Beltsville
240-499 Bethesda
240-500 Hagerstown
240-501 Silver Spring
240-502 Silver Spring
240-503 Issue
240-504 Silver Spring
240-505 Silver Spring
240-506 Rockville
240-507 Bethesda
240-508 Capitol Heights
240-509 Gambrills
240-510 Upper Marlboro
240-512 Riverdale
240-513 Hagerstown
240-514 Bethesda
240-515 Bethesda
240-516 Silver Spring
240-517 Columbia
240-518 Waldorf
240-519 Bethesda
240-520 Hagerstown
240-521 Bethesda
240-522 Cumberland
240-523 La Plata
240-524 Laurel
240-525 Upper Marlboro
240-526 Leonardtown
240-527 Hagerstown
240-528 Hughesville
240-529 Frederick
240-530 Waldorf
240-531 Silver Spring
240-532 Hyattsville
240-533 Hyattsville
240-534 Bethesda
240-535 Silver Spring
240-536 Sandy Spring
240-537 Washington
240-538 Leonardtown
240-539 Hyattsville
240-540 Ellicott City
240-541 Bethesda
240-542 Riverdale
240-543 Bethesda
240-544 Glenn Dale
240-545 Upper Marlboro
240-546 Clinton
240-547 Laurel
240-548 Hyattsville
240-549 Frederick
240-550 Rockville
240-551 Rockville
240-552 Rockville
240-553 Hyattsville
240-554 Laurel
240-556 Glenn Dale
240-557 Hyattsville
240-558 Silver Spring
240-559 Sandy Spring
240-560 Bethesda
240-561 Leonardtown
240-562 Gaithersburg
240-563 Capitol Heights
240-564 Columbia
240-565 Laurel
240-566 Frederick
240-567 Rockville
240-568 Laurel
240-569 Allegany
240-570 Dayton
240-573 Upper Marlboro
240-575 Frederick
240-577 Leonardtown
240-578 Frederick
240-580 Cumberland
240-581 Laurel
240-582 Hyattsville
240-583 Beltsville
240-585 Waldorf
240-586 Frederick
240-587 Leonardtown
240-592 Laurel
240-593 Laurel
240-595 Bethesda
240-597 Gaithersburg
240-599 Rockville
240-600 Hyattsville
240-601 Beltsville
240-602 Beltsville
240-603 Beltsville
240-604 Beltsville
240-605 Beltsville
240-606 Beltsville
240-607 Upper Marlboro
240-608 Frederick
240-609 Cumberland
240-612 Hyattsville
240-613 Hyattsville
240-614 Rockville
240-615 Hyattsville
240-616 Riverdale
240-617 Hagerstown
240-618 Rockville
240-619 Bethesda
240-620 Rockville
240-621 Silver Spring
240-623 Hyattsville
240-624 Riverdale
240-625 Hagerstown
240-626 Frederick
240-627 Silver Spring
240-629 Frederick
240-630 Hyattsville
240-631 Gaithersburg
240-632 Gaithersburg
240-633 Hughesville
240-636 Laurel
240-638 Hyattsville
240-640 Waldorf
240-641 Silver Spring
240-643 Silver Spring
240-644 Bethesda
240-645 Bethesda
240-646 Laurel
240-650 Bethesda
240-651 Frederick
240-652 Charlotte Hall
240-654 Gaithersburg
240-657 Frederick
240-660 Rockville
240-661 Callaway
240-662 Silver Spring
240-665 Bethesda
240-666 Nanjemoy
240-667 Hyattsville
240-668 Clarksburg
240-669 Hyattsville
240-670 Hyattsville
240-671 Hyattsville
240-672 Rockville
240-674 Frederick
240-675 Myersville
240-676 Silver Spring
240-678 Silver Spring
240-681 Brandywine
240-682 Waldorf
240-683 Gaithersburg
240-684 Riverdale
240-685 Upper Marlboro
240-686 Gaithersburg
240-687 Silver Spring
240-688 Silver Spring
240-690 Gaithersburg
240-691 Upper Marlboro
240-694 Bethesda
240-695 Temple Hills
240-696 Hyattsville
240-699 Frederick
240-701 Silver Spring
240-702 Gaithersburg
240-704 Hyattsville
240-705 Bethesda
240-706 Bethesda
240-707 Hagerstown
240-708 Columbia
240-712 Columbia
240-713 Laurel
240-714 Hyattsville
240-715 Rockville
240-716 Capitol Heights
240-718 Callaway
240-719 Capitol Heights
240-720 Gaithersburg
240-722 Sandy Spring
240-723 Silver Spring
240-724 Hyattsville
240-725 Patuxent River
240-727 Cumberland
240-731 Rockville
240-732 Mount Airy
240-734 Hagerstown
240-737 Hyattsville
240-740 Bethesda
240-743 Bethesda
240-744 Hyattsville
240-745 Clarksburg
240-747 Hyattsville
240-750 Gaithersburg
240-751 Gaithersburg
240-752 Bethesda
240-753 Rockville
240-754 Waldorf
240-755 Laurel
240-757 Hyattsville
240-758 Laurel
240-760 Takoma Park
240-762 Hyattsville
240-763 Owings
240-764 Bethesda
240-765 Bethesda
240-766 Bethesda
240-767 Capitol Heights
240-770 Hyattsville
240-771 Poolesville
240-772 Frederick
240-773 Rockville
240-774 Lonaconing
240-775 Luke
240-776 La Plata
240-777 Rockville
240-778 Bethesda
240-779 Sandy Spring
240-780 Gaithersburg
240-781 Takoma Park
240-782 Clarksburg
240-783 Bethesda
240-784 Myersville
240-786 Laurel
240-787 Brandywine
240-788 Hyattsville
240-790 Hyattsville
240-793 Gaithersburg
240-794 Callaway
240-800 Bethesda
240-801 Gaithersburg
240-802 Mount Rainier
240-803 Cumberland
240-804 Issue
240-805 Gaithersburg
240-806 Indian Head
240-808 Leonardtown
240-810 Bethesda
240-812 Poolesville
240-813 Gaithersburg
240-815 Frederick
240-816 Hagerstown
240-817 Sandy Spring
240-818 Smithsburg
240-821 Silver Spring
240-823 Brandywine
240-825 Hyattsville
240-826 Rockville
240-828 Hyattsville
240-830 Capitol Heights
240-831 Frederick
240-832 Bethesda
240-833 Bethesda
240-837 Hughesville
240-838 Capitol Heights
240-839 Bethesda
240-841 Laurel
240-842 Glenn Dale
240-843 Riverdale
240-844 Ridge
240-845 Bethesda
240-846 Clinton
240-847 Bethesda
240-848 Gaithersburg
240-850 Hagerstown
240-855 Bethesda
240-856 Columbia
240-857 Hyattsville
240-858 Bethesda
240-859 Dayton
240-860 Cumberland
240-862 Mount Savage
240-863 Laurel
240-864 Rockville
240-865 Halethorpe
240-867 Silver Spring
240-868 Hyattsville
240-870 Frederick
240-876 Bethesda
240-877 Frederick
240-878 Washington
240-880 Bethesda
240-882 Capitol Heights
240-883 Sandy Spring
240-888 Rockville
240-892 Upper Marlboro
240-893 Silver Spring
240-895 Patuxent River
240-897 Hyattsville
240-898 Hyattsville
240-899 Bethesda
240-900 Hyattsville
240-901 La Plata
240-903 Indian Head
240-904 Columbia
240-906 Hyattsville
240-907 Rockville
240-908 Frederick
240-912 Gaithersburg
240-913 Frederick
240-915 Frederick
240-917 Laurel
240-918 Sandy Spring
240-920 Cumberland
240-925 Leonardtown
240-929 Hyattsville
240-938 Ashton
240-949 Hyattsville
240-964 Cumberland
240-965 Riverdale
240-970 Silver Spring
240-971 Frederick
240-972 Columbia
240-976
240-979 Cumberland
240-985 Williamsport
240-986 Nanjemoy
240-988 Beltsville
240-993 Indian Head
240-994 Rockville
240-996 Knoxville
240-997 Silver Spring
240-998 Hancock
240-572
240-576 Washington
240-655 Garrett