Area Code 603

Area code 603 serves the state of New Hampshire. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 603 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.

Area Code & Prefix Location
603-200 Manchester, Nh
603-203 Derry, Nh
603-204 Merrimack, Nh
603-205 Manchester, Nh
603-206 Manchester, Nh
603-208 Merrimack, Nh
603-209 Merrimack, Nh
603-210 Manchester, Nh
603-212 Salem, Nh
603-213 Manchester, Nh
603-214 Portsmouth, Nh
603-215 Portsmouth, Nh
603-216 Manchester, Nh
603-218 Salem, Nh
603-219 Manchester, Nh
603-221 Nashua, Nh
603-222 Manchester, Nh
603-223 Concord, Nh
603-224 Concord, Nh
603-225 Concord, Nh
603-226 Concord, Nh
603-227 Concord, Nh
603-228 Concord, Nh
603-229 Concord, Nh
603-230 Concord, Nh
603-231 Portsmouth, Nh
603-232 Manchester, Nh
603-233 Manchester, Nh
603-234 Portsmouth, Nh
603-235 Portsmouth, Nh
603-236 Waterville Valley, Nh
603-237 Colebrook, Nh
603-238 Manchester, Nh
603-239 Winchester, Nh
603-240 Manchester, Nh
603-241 Manchester, Nh
603-242 Troy, Nh
603-243 Manchester, Nh
603-244 Manchester, Nh
603-245 Portsmouth, Nh
603-247 Derry, Nh
603-248 Dover, Nh
603-249 Milford, Nh
603-250 Portsmouth, Nh
603-251 Manchester, Nh
603-252 Merrimack, Nh
603-254 Merrimack, Nh
603-256 Brattleboro, Nh
603-257 Portsmouth, Nh
603-259 Manchester, Nh
603-260 Manchester, Nh
603-261 Merrimack, Nh
603-262 Merrimack, Nh
603-263 Manchester, Nh
603-264 Manchester, Nh
603-265 Manchester, Nh
603-267 Belmont, Nh
603-270 Manchester, Nh
603-271 Concord, Nh
603-272 Bradford, Nh
603-273 Manchester, Nh
603-274 Manchester, Nh
603-275 Manchester, Nh
603-277 Manchester, Nh
603-279 Meredith, Nh
603-280 Manchester, Nh
603-281 Nashua, Nh
603-282 Manchester, Nh
603-283 Manchester, Nh
603-285 Manchester, Nh
603-287 Manchester, Nh
603-289 Derry, Nh
603-290 Merrimack, Nh
603-291 Manchester, Nh
603-292 Manchester, Nh
603-293 Glendale, Nh
603-294 Manchester, Nh
603-295 Dover, Nh
603-296 Manchester, Nh
603-297 Portsmouth, Nh
603-300 Manchester, Nh
603-301 Manchester, Nh
603-302 Manchester, Nh
603-304 Merrimack, Nh
603-306 Lebanon, Nh
603-308 Hanover, Nh
603-310 Manchester, Nh
603-313 Merrimack, Nh
603-314 Manchester, Nh
603-317 Manchester, Nh
603-319 Manchester, Nh
603-320 Derry, Nh
603-322 Derry, Nh
603-323 Tamworth, Nh
603-324 Manchester, Nh
603-325 Manchester, Nh
603-326 Manchester, Nh
603-327 Manchester, Nh
603-328 Manchester, Nh
603-329 Hampstead, Nh
603-330 Rochester, Nh
603-331 Manchester, Nh
603-332 Rochester, Nh
603-334 Portsmouth, Nh
603-335 Rochester, Nh
603-336 Hinsdale, Nh
603-337 Rochester, Nh
603-338 Manchester, Nh
603-339 Derry, Nh
603-341 Merrimack, Nh
603-342 Berlin, Nh
603-343 Manchester, Nh
603-344 Merrimack, Nh
603-345 Merrimack, Nh
603-346 Manchester, Nh
603-347 Manchester, Nh
603-348 Merrimack, Nh
603-349 Merrimack, Nh
603-350 Manchester, Nh
603-351 Manchester, Nh
603-352 Keene, Nh
603-354 Keene, Nh
603-355 Keene, Nh
603-357 Keene, Nh
603-358 Keene, Nh
603-362 Atkinson, Nh
603-364 Gilmanton, Nh
603-365 Manchester, Nh
603-366 Weirs, Nh
603-367 Madison, Nh
603-369 Manchester, Nh
603-371 Nashua, Nh
603-372 Portsmouth, Nh
603-373 Nashua, Nh
603-374 Bartlett, Nh
603-375 Manchester, Nh
603-376 Dover, Nh
603-377 Manchester, Nh
603-378 Plaistow, Nh
603-379 Manchester, Nh
603-380 Derry, Nh
603-381 Merrimack, Nh
603-382 Plaistow, Nh
603-383 Jackson, Nh
603-384 Manchester, Nh
603-385 Manchester, Nh
603-386 Salem, Nh
603-388 Portsmouth, Nh
603-389 Manchester, Nh
603-390 Manchester, Nh
603-391 Manchester, Nh
603-392 Manchester, Nh
603-393 Merrimack, Nh
603-394 Exeter, Nh
603-395 Manchester, Nh
603-396 Manchester, Nh
603-397 Manchester, Nh
603-398 Merrimack, Nh
603-399 Westmoreland, Nh
603-400 Manchester, Nh
603-407 Manchester, Nh
603-409 Derry, Nh
603-410 Nashua, Nh
603-412 Merrimack, Nh
603-413 Dover, Nh
603-414 Merrimack, Nh
603-415 Portsmouth, Nh
603-417 Manchester, Nh
603-418 Nashua, Nh
603-419 Merrimack, Nh
603-420 Manchester, Nh
603-421 Derry, Nh
603-422 Portsmouth, Nh
603-423 Merrimack, Nh
603-424 Merrimack, Nh
603-425 Derry, Nh
603-426 Derry, Nh
603-427 Portsmouth, Nh
603-428 Henniker, Nh
603-429 Merrimack, Nh
603-430 Portsmouth, Nh
603-431 Portsmouth, Nh
603-432 Derry, Nh
603-433 Portsmouth, Nh
603-434 Derry, Nh
603-435 Pittsfield, Nh
603-436 Portsmouth, Nh
603-437 Derry, Nh
603-438 Portsmouth, Nh
603-439 Nashua, Nh
603-440 Merrimack, Nh
603-442 Lebanon, Nh
603-443 Lebanon, Nh
603-444 Littleton, Nh
603-447 Conway, Nh
603-448 Lebanon, Nh
603-449 Milan, Nh
603-450 Manchester, Nh
603-452 Portsmouth, Nh
603-454 Merrimack, Nh
603-455 Merrimack, Nh
603-456 Warner, Nh
603-458 Manchester, Nh
603-459 Manchester, Nh
603-460 Manchester, Nh
603-461 Merrimack, Nh
603-462 Portsmouth, Nh
603-463 Deerfield, Nh
603-464 Hillsboro, Nh
603-465 Hollis, Nh
603-466 Gorham, Nh
603-467 Manchester, Nh
603-468 Portsmouth, Nh
603-469 Meriden, Nh
603-470 Merrimack, Nh
603-471 Bedford, Nh
603-472 Bedford, Nh
603-474 Seabrook, Nh
603-477 Merrimack, Nh
603-479 Derry, Nh
603-480 Manchester, Nh
603-486 Merrimack, Nh
603-487 New Boston, Nh
603-488 Manchester, Nh
603-489 Manchester, Nh
603-492 Manchester, Nh
603-495 Washington, Nh
603-497 Goffstown, Nh
603-499 Manchester, Nh
603-501 Manchester, Nh
603-502 Derry, Nh
603-503 Manchester, Nh
603-504 Merrimack, Nh
603-507 Derry, Nh
603-509 Dover, Nh
603-510 Manchester, Nh
603-512 Portsmouth, Nh
603-515 Wolfeboro, Nh
603-516 Portsmouth, Nh
603-517 Merrimack, Nh
603-518 Manchester, Nh
603-521 Manchester, Nh
603-523 Canaan, Nh
603-524 Laconia, Nh
603-525 Hancock, Nh
603-526 New London, Nh
603-527 Laconia, Nh
603-528 Laconia, Nh
603-529 Weare, Nh
603-531 Derry, Nh
603-532 Jaffrey, Nh
603-533 Merrimack, Nh
603-535 Manchester, Nh
603-536 Plymouth, Nh
603-537 Derry, Nh
603-538 Pittsburg, Nh
603-541 Manchester, Nh
603-542 Claremont, Nh
603-543 Claremont, Nh
603-545 Manchester, Nh
603-546 Manchester, Nh
603-547 Greenfield, Nh
603-549 Derry, Nh
603-551 Manchester, Nh
603-552 Manchester, Nh
603-553 Derry, Nh
603-554 Merrimack, Nh
603-556 Manchester, Nh
603-559 Portsmouth, Nh
603-560 Derry, Nh
603-561 Nashua, Nh
603-562 Merrimack, Nh
603-563 Dublin, Nh
603-564 Manchester, Nh
603-565 Manchester, Nh
603-567 Manchester, Nh
603-569 Wolfeboro, Nh
603-570 Dover, Nh
603-571 Derry, Nh
603-572 Nashua, Nh
603-573 Manchester, Nh
603-574 Manchester, Nh
603-575 Manchester, Nh
603-576 Manchester, Nh
603-577 Nashua, Nh
603-578 Nashua, Nh
603-579 Nashua, Nh
603-580 Manchester, Nh
603-581 Manchester, Nh
603-582 Merrimack, Nh
603-583 Manchester, Nh
603-586 Jefferson, Nh
603-587 Manchester, Nh
603-588 Antrim, Nh
603-589 Manchester, Nh
603-590 Portsmouth, Nh
603-591 Portsmouth, Nh
603-592 Manchester, Nh
603-593 Manchester, Nh
603-594 Nashua, Nh
603-595 Nashua, Nh
603-596 Nashua, Nh
603-597 Manchester, Nh
603-598 Nashua, Nh
603-599 Nashua, Nh
603-601 Manchester, Nh
603-606 Nashua, Nh
603-608 Manchester, Nh
603-609 Derry, Nh
603-610 Manchester, Nh
603-612 Nashua, Nh
603-613 Manchester, Nh
603-614 Manchester, Nh
603-615 Manchester, Nh
603-616 Merrimack, Nh
603-617 Manchester, Nh
603-618 Manchester, Nh
603-620 Merrimack, Nh
603-621 Manchester, Nh
603-622 Manchester, Nh
603-623 Manchester, Nh
603-624 Manchester, Nh
603-625 Manchester, Nh
603-626 Manchester, Nh
603-627 Manchester, Nh
603-628 Manchester, Nh
603-629 Manchester, Nh
603-631 Merrimack, Nh
603-632 Enfield, Nh
603-633 Manchester, Nh
603-634 Manchester, Nh
603-635 Pelham, Nh
603-637 Manchester, Nh
603-638 Barnet, Nh
603-639 Manchester, Nh
603-640 Hanover, Nh
603-641 Manchester, Nh
603-642 Kingston, Nh
603-643 Hanover, Nh
603-644 Manchester, Nh
603-645 Manchester, Nh
603-646 Hanover, Nh
603-647 Manchester, Nh
603-648 Salisbury, Nh
603-650 Lebanon, Nh
603-651 Merrimack, Nh
603-652 Milton, Nh
603-653 Hanover, Nh
603-654 Wilton, Nh
603-655 Manchester, Nh
603-656 Manchester, Nh
603-657 Manchester, Nh
603-658 Portsmouth, Nh
603-659 Newmarket, Nh
603-661 Portsmouth, Nh
603-662 Merrimack, Nh
603-663 Manchester, Nh
603-664 Barrington, Nh
603-665 Manchester, Nh
603-666 Manchester, Nh
603-667 Manchester, Nh
603-668 Manchester, Nh
603-669 Manchester, Nh
603-670 Manchester, Nh
603-671 Manchester, Nh
603-672 Milford, Nh
603-673 Milford, Nh
603-674 Portsmouth, Nh
603-675 Windsor, Nh
603-676 Portsmouth, Nh
603-677 Manchester, Nh
603-678 Manchester, Nh
603-679 Epping, Nh
603-680 Merrimack, Nh
603-681 Manchester, Nh
603-682 Portsmouth, Nh
603-683 Merrimack, Nh
603-684 Manchester, Nh
603-685 Nashua, Nh
603-687 Portsmouth, Nh
603-689 Manchester, Nh
603-690 Manchester, Nh
603-692 Somersworth, Nh
603-693 Nashua, Nh
603-694 Fryeburg, Nh
603-695 Manchester, Nh
603-701 Rochester, Nh
603-703 Manchester, Nh
603-705 Manchester, Nh
603-706 Nashua, Nh
603-708 Manchester, Nh
603-709 Manchester, Nh
603-712 Manchester, Nh
603-715 Manchester, Nh
603-716 Portland, Nh
603-717 Manchester, Nh
603-719 Portsmouth, Nh
603-721 Manchester, Nh
603-722 Manchester, Nh
603-723 Merrimack, Nh
603-724 Manchester, Nh
603-725 Manchester, Nh
603-726 Campton, Nh
603-727 Manchester, Nh
603-728 Manchester, Nh
603-729 Manchester, Nh
603-730 Manchester, Nh
603-732 Manchester, Nh
603-733 Manchester, Nh
603-734 Manchester, Nh
603-735 Andover, Nh
603-737 Portsmouth, Nh
603-738 Derry, Nh
603-739 Manchester, Nh
603-740 Dover, Nh
603-741 Manchester, Nh
603-742 Dover, Nh
603-743 Dover, Nh
603-744 Bristol, Nh
603-749 Dover, Nh
603-750 Dover, Nh
603-751 Manchester, Nh
603-752 Berlin, Nh
603-754 Portsmouth, Nh
603-755 Farmington, Nh
603-756 Walpole, Nh
603-757 Manchester, Nh
603-758 Manchester, Nh
603-760 Manchester, Nh
603-761 Portsmouth, Nh
603-763 Sunapee, Nh
603-764 Warren, Nh
603-765 Portsmouth, Nh
603-766 Portsmouth, Nh
603-767 Derry, Nh
603-768 Danbury, Nh
603-769 Manchester, Nh
603-771 Manchester, Nh
603-772 Exeter, Nh
603-773 Exeter, Nh
603-775 Exeter, Nh
603-776 Barnstead, Nh
603-777 Exeter, Nh
603-778 Exeter, Nh
603-779 Manchester, Nh
603-780 Manchester, Nh
603-781 Derry, Nh
603-782 Manchester, Nh
603-784 Manchester, Nh
603-785 Derry, Nh
603-788 Lancaster, Nh
603-789 Portsmouth, Nh
603-791 Nashua, Nh
603-792 Portsmouth, Nh
603-793 Portsmouth, Nh
603-795 Lyme, Nh
603-797 Manchester, Nh
603-799 Portsmouth, Nh
603-808 Manchester, Nh
603-813 Rochester, Nh
603-814 Manchester, Nh
603-815 Manchester, Nh
603-816 Portsmouth, Nh
603-817 Portsmouth, Nh
603-818 Portsmouth, Nh
603-819 Manchester, Nh
603-820 Manchester, Nh
603-821 Nashua, Nh
603-822 Manchester, Nh
603-824 Manchester, Nh
603-826 Charlestown, Nh
603-827 Harrisville, Nh
603-829 Manchester, Nh
603-832 Manchester, Nh
603-834 Nashua, Nh
603-836 Manchester, Nh
603-838 Lisbon, Nh
603-839 Manchester, Nh
603-840 Manchester, Nh
603-841 Manchester, Nh
603-842 Dover, Nh
603-843 Portsmouth, Nh
603-845 Manchester, Nh
603-847 Sullivan, Nh
603-848 Merrimack, Nh
603-852 Manchester, Nh
603-853 Portsmouth, Nh
603-854 Derry, Nh
603-855 Rochester, Nh
603-856 Manchester, Nh
603-858 Manchester, Nh
603-859 New Durham, Nh
603-861 Manchester, Nh
603-862 Dover, Nh
603-863 Newport, Nh
603-864 Nashua, Nh
603-865 Newport, Nh
603-866 Manchester, Nh
603-867 Derry, Nh
603-868 Durham, Nh
603-869 Bethlehem, Nh
603-870 Salem, Nh
603-871 Manchester, Nh
603-872 Rochester, Nh
603-873 Manchester, Nh
603-874 Manchester, Nh
603-875 Alton, Nh
603-876 Marlboro, Nh
603-877 Manchester, Nh
603-878 Greenville, Nh
603-879 Nashua, Nh
603-880 Nashua, Nh
603-881 Nashua, Nh
603-882 Nashua, Nh
603-883 Nashua, Nh
603-884 Nashua, Nh
603-885 Nashua, Nh
603-886 Nashua, Nh
603-887 Chester, Nh
603-888 Nashua, Nh
603-889 Nashua, Nh
603-890 Salem, Nh
603-891 Nashua, Nh
603-892 Manchester, Nh
603-893 Salem, Nh
603-894 Salem, Nh
603-895 Raymond, Nh
603-896 Salem, Nh
603-897 Nashua, Nh
603-898 Salem, Nh
603-899 Rindge, Nh
603-902 Manchester, Nh
603-903 Manchester, Nh
603-904 Manchester, Nh
603-905 Manchester, Nh
603-906 Rochester, Nh
603-910 Nashua, Nh
603-912 Portsmouth, Nh
603-913 Manchester, Nh
603-923 Manchester, Nh
603-925 Portsmouth, Nh
603-926 Hampton, Nh
603-927 Sutton, Nh
603-928 Portsmouth, Nh
603-929 Hampton, Nh
603-930 Derry, Nh
603-931 Manchester, Nh
603-932 Manchester, Nh
603-934 Franklin, Nh
603-935 Manchester, Nh
603-938 Bradford, Nh
603-941 Manchester, Nh
603-942 Northwood, Nh
603-943 Manchester, Nh
603-944 Manchester, Nh
603-945 Manchester, Nh
603-947 Portsmouth, Nh
603-948 Rochester, Nh
603-951 Manchester, Nh
603-952 Manchester, Nh
603-953 Manchester, Nh
603-957 Derry, Nh
603-961 Manchester, Nh
603-965 Manchester, Nh
603-966 Portsmouth, Nh
603-967 Manchester, Nh
603-968 Ashland, Nh
603-969 Portsmouth, Nh
603-970 Derry, Nh
603-971 Portsmouth, Nh
603-973 Londonderry, Nh
603-974 Manchester, Nh
603-975 Manchester, Nh
603-977 Manchester, Nh
603-978 Derry, Nh
603-988 Londonderry, Nh
603-992 Manchester, Nh
603-994 Portsmouth, Nh
603-995 Manchester, Nh
603-996 Manchester, Nh
603-997 Portsmouth, Nh
603-998 Manchester, Nh