Sub Code Listings for 203 - Connecticut

These are the cities covered by the 203 area code, located in Connecticut (CT). There are 777 sub codes listed under this area code.

These are the cities covered by the 203 area code, located in Connecticut (CT). There are 777 sub codes listed under this area code.

Enter the full number into the search bar below for a look-up report including Owner Name, Address, Number History, Phone Carrier and much more!


(* Please use the format 303-847-5412)

Sub-Code City, State
203-858 Norwalk, CT
203-677 Wallingford, CT
203-731 Danbury, CT
203-319 Fairfield, CT
203-321 Stamford, CT
203-238 Meriden, CT
203-591 Waterbury, CT
203-207 Danbury, CT
203-929 Huntington, CT
203-799 New Haven, CT
203-774 Wallingford, CT
203-662 Darien, CT
203-280 Darien, CT
203-655 Darien, CT
203-253 Stamford, CT
203-721 Waterbury, CT
203-210 Wilton, CT
203-551 Bridgeport, CT
203-272 Cheshire, CT
203-453 Guilford, CT
203-460 Danbury, CT
203-360 Bridgeport, CT
203-802 Waterbury, CT
203-719 Stamford, CT
203-600 Meriden, CT
203-646 Branford, CT
203-445 Trumbull, CT
203-337 Bridgeport, CT
203-936 New Haven, CT
203-396 Bridgeport, CT
203-946 New Haven, CT
203-441 Wolcott, CT
203-625 Greenwich, CT
203-828 Seymour, CT
203-435 New Haven, CT
203-704 Wolcott, CT
203-527 Waterbury, CT
203-941 Seymour, CT
203-459 Trumbull, CT
203-342 Bridgeport, CT
203-742 Greenwich, CT
203-649 Cheshire, CT
203-379 Meriden, CT
203-370 New Haven, CT
203-267 Woodbury, CT
203-503 New Haven, CT
203-349 Westport, CT
203-686 Meriden, CT
203-364 Newtown, CT
203-288 New Haven, CT
203-838 Norwalk, CT
203-341 Westport, CT
203-227 Westport, CT
203-764 New Haven, CT
203-866 Norwalk, CT
203-990 Old Greenwich, CT
203-637 Old Greenwich, CT
203-270 Newtown, CT
203-758 Waterbury, CT
203-992 Greenwich, CT
203-231 Ansonia-Derby, CT
203-666 Bridgeport, CT
203-254 Fairfield, CT
203-808 Waterbury, CT
203-722 Norwalk, CT
203-934 New Haven, CT
203-691 New Haven, CT
203-918 Stamford, CT
203-775 Danbury, CT
203-554 Stamford, CT
203-963 Norwalk, CT
203-208 Branford, CT
203-644 Norwalk, CT
203-965 Stamford, CT
203-869 Greenwich, CT
203-740 Danbury, CT
203-547 Stamford, CT
203-760 Bridgeport, CT
203-868 New Haven, CT
203-957 Norwalk, CT
203-746 Danbury, CT
203-450 Bridgeport, CT
203-339 Bridgeport, CT
203-439 Cheshire, CT
203-642 Norwalk, CT
203-724 Stamford, CT
203-597 Waterbury, CT
203-367 Bridgeport, CT
203-233 Waterbury, CT
203-427 Meriden, CT
203-502 Bridgeport, CT
203-769 Greenwich, CT
203-709 Waterbury, CT
203-780 New Haven, CT
203-791 Danbury, CT
203-809 New Haven, CT
203-917 Danbury, CT
203-820 Norwalk, CT
203-713 Milford, CT
203-283 Milford, CT
203-246 Norwalk, CT
203-426 Newtown, CT
203-263 Woodbury, CT
203-305 Ansonia-Derby, CT
203-565 Waterbury, CT
203-770 Danbury, CT
203-859 New Haven, CT
203-621 Darien, CT
203-369 Old Greenwich, CT
203-289 Danbury, CT
203-539 Stamford, CT
203-580 Byram, CT
203-836 New Haven, CT
203-966 New Canaan, CT
203-660 Byram, CT
203-206 Waterbury, CT
203-737 New Haven, CT
203-773 New Haven, CT
203-242 Huntington, CT
203-885 Danbury, CT
203-800 New Haven, CT
203-423 Wilton, CT
203-224 Bridgeport, CT
203-699 Cheshire, CT
203-862 Greenwich, CT
203-878 Milford, CT
203-788 Danbury, CT
203-925 Huntington, CT
203-797 Danbury, CT
203-842 Norwalk, CT
203-825 Danbury, CT
203-778 Danbury, CT
203-827 Old Greenwich, CT
203-984 Norwalk, CT
203-236 Waterbury, CT
203-613 Norwalk, CT
203-884 Guilford, CT
203-543 Bridgeport, CT
203-684 New Haven, CT
203-408 Redding, CT
203-556 Bridgeport, CT
203-805 Waterbury, CT
203-410 New Haven, CT
203-425 Stamford, CT
203-795 New Haven, CT
203-390 New Haven, CT
203-705 Stamford, CT
203-636 Darien, CT
203-389 New Haven, CT
203-362 Bridgeport, CT
203-978 Stamford, CT
203-670 Waterbury, CT
203-315 Branford, CT
203-814 Bridgeport, CT
203-549 Bridgeport, CT
203-212 Bridgeport, CT
203-284 Wallingford, CT
203-590 Trumbull, CT
203-829 Norwalk, CT
203-488 Branford, CT
203-607 Stamford, CT
203-328 Stamford, CT
203-434 Norwalk, CT
203-812 New Haven, CT
203-223 Stamford, CT
203-407 New Haven, CT
203-784 New Haven, CT
203-419 Waterbury, CT
203-617 Danbury, CT
203-302 Greenwich, CT
203-599 Meriden, CT
203-848 New Haven, CT
203-465 Waterbury, CT
203-683 Bridgeport, CT
203-385 Bridgeport, CT
203-883 Stamford, CT
203-631 Meriden, CT
203-973 Stamford, CT
203-694 Meriden, CT
203-563 Wilton, CT
203-213 Meriden, CT
203-235 Meriden, CT
203-895 Trumbull, CT
203-863 Greenwich, CT
203-738 Guilford, CT
203-790 Danbury, CT
203-303 Wallingford, CT
203-348 Stamford, CT
203-759 Waterbury, CT
203-522 Bridgeport, CT
203-309 Darien, CT
203-222 Westport, CT
203-664 Redding, CT
203-493 Georgetown, CT
203-205 Danbury, CT
203-994 Danbury, CT
203-480 Fairfield, CT
203-391 Stamford, CT
203-340 Greenwich, CT
203-910 Waterbury, CT
203-468 New Haven, CT
203-399 Stamford, CT
203-449 Bridgeport, CT
203-743 Danbury, CT
203-717 Greenwich, CT
203-787 New Haven, CT
203-593 Norwalk, CT
203-568 Waterbury, CT
203-632 Naugatuck, CT
203-544 Georgetown, CT
203-618 Greenwich, CT
203-285 New Haven, CT
203-633 Wolcott, CT
203-334 Bridgeport, CT
203-906 Ansonia-Derby, CT
203-943 Norwalk, CT
203-753 Waterbury, CT
203-643 Branford, CT
203-248 New Haven, CT
203-671 New Haven, CT
203-225 Huntington, CT
203-451 Westport, CT
203-220 Trumbull, CT
203-366 Bridgeport, CT
203-944 Huntington, CT
203-217 Waterbury, CT
203-837 Danbury, CT
203-720 Naugatuck, CT
203-384 Bridgeport, CT
203-368 Bridgeport, CT
203-232 Waterbury, CT
203-482 Danbury, CT
203-846 Norwalk, CT
203-615 Bridgeport, CT
203-886 Meriden, CT
203-266 Woodbury, CT
203-756 Waterbury, CT
203-626 Wallingford, CT
203-335 Bridgeport, CT
203-313 Danbury, CT
203-933 New Haven, CT
203-951 Milford, CT
203-268 Trumbull, CT
203-748 Danbury, CT
203-537 Meriden, CT
203-623 New Haven, CT
203-442 New Canaan, CT
203-353 Stamford, CT
203-902 New Haven, CT
203-336 Bridgeport, CT
203-479 New Haven, CT
203-640 New Haven, CT
203-703 Stamford, CT
203-766 New Haven, CT
203-892 Ansonia-Derby, CT
203-356 Stamford, CT
203-996 New Haven, CT
203-708 Stamford, CT
203-641 New Haven, CT
203-876 Milford, CT
203-534 Bridgeport, CT
203-413 Greenwich, CT
203-490 Naugatuck, CT
203-323 Stamford, CT
203-234 New Haven, CT
203-832 Stamford, CT
203-953 Bridgeport, CT
203-952 Norwalk, CT
203-707 Waterbury, CT
203-716 New Canaan, CT
203-855 Norwalk, CT
203-387 New Haven, CT
203-602 Stamford, CT
203-464 New Haven, CT
203-486 Woodbury, CT
203-964 Stamford, CT
203-661 Greenwich, CT
203-322 Stamford, CT
203-639 Meriden, CT
203-291 Westport, CT
203-519 Waterbury, CT
203-968 Stamford, CT
203-725 Waterbury, CT
203-509 Waterbury, CT
203-726 Bridgeport, CT
203-663 Norwalk, CT
203-447 Huntington, CT
203-889 New Haven, CT
203-573 Waterbury, CT
203-921 Stamford, CT
203-394 Bridgeport, CT
203-810 Norwalk, CT
203-530 New Haven, CT
203-744 Danbury, CT
203-897 Stamford, CT
203-312 Danbury, CT
203-292 Fairfield, CT
203-733 Danbury, CT
203-931 New Haven, CT
203-361 New Haven, CT
203-616 Danbury, CT
203-273 Stamford, CT
203-961 Stamford, CT
203-806 Cheshire, CT
203-299 Norwalk, CT
203-553 New Haven, CT
203-768 Waterbury, CT
203-297 Danbury, CT
203-229 Norwalk, CT
203-998 Stamford, CT
203-747 New Haven, CT
203-971 Greenwich, CT
203-729 Naugatuck, CT
203-695 Waterbury, CT
203-438 Ridgefield, CT
203-789 New Haven, CT
203-843 New Haven, CT
203-496 Greenwich, CT
203-401 New Haven, CT
203-524 Stamford, CT
203-794 Danbury, CT
203-470 Danbury, CT
203-928 New Haven, CT
203-546 Danbury, CT
203-570 Stamford, CT
203-592 Waterbury, CT
203-730 Danbury, CT
203-706 Waterbury, CT
203-308 Ansonia-Derby, CT
203-310 New Canaan, CT
203-682 Westport, CT
203-857 Norwalk, CT
203-545 Bridgeport, CT
203-581 Bridgeport, CT
203-301 Milford, CT
203-873 Bridgeport, CT
203-397 New Haven, CT
203-560 Waterbury, CT
203-500 New Haven, CT
203-833 New Haven, CT
203-443 Meriden, CT
203-406 Stamford, CT
203-782 New Haven, CT
203-598 Waterbury, CT
203-575 Waterbury, CT
203-504 Stamford, CT
203-499 New Haven, CT
203-732 Ansonia-Derby, CT
203-421 Madison, CT
203-692 Fairfield, CT
203-264 Woodbury, CT
203-552 Byram, CT
203-914 Stamford, CT
203-969 Stamford, CT
203-380 Bridgeport, CT
203-477 New Haven, CT
203-949 Wallingford, CT
203-844 Fairfield, CT
203-507 New Haven, CT
203-448 Danbury, CT
203-351 Stamford, CT
203-214 New Haven, CT
203-765 New Haven, CT
203-541 Stamford, CT
203-948 Danbury, CT
203-491 Newtown, CT
203-781 New Haven, CT
203-609 Stamford, CT
203-517 Stamford, CT
203-899 Norwalk, CT
203-331 Bridgeport, CT
203-456 Danbury, CT
203-589 New Haven, CT
203-259 Fairfield, CT
203-834 Wilton, CT
203-532 Byram, CT
203-840 Norwalk, CT
203-614 Stamford, CT
203-330 Bridgeport, CT
203-452 Trumbull, CT
203-986 Old Greenwich, CT
203-845 Norwalk, CT
203-954 Ansonia-Derby, CT
203-620 Darien, CT
203-433 Branford, CT
203-209 Bridgeport, CT
203-571 Westport, CT
203-505 Norwalk, CT
203-901 New Haven, CT
203-520 Bridgeport, CT
203-333 Bridgeport, CT
203-674 Stamford, CT
203-485 Greenwich, CT
203-432 New Haven, CT
203-815 New Haven, CT
203-244 Ridgefield, CT
203-585 Stamford, CT
203-569 Stamford, CT
203-566 Stamford, CT
203-262 Woodbury, CT
203-985 New Haven, CT
203-279 Bridgeport, CT
203-734 Ansonia-Derby, CT
203-979 Stamford, CT
203-588 Stamford, CT
203-696 Bridgeport, CT
203-752 New Haven, CT
203-437 Waterbury, CT
203-923 Bridgeport, CT
203-281 New Haven, CT
203-278 Ansonia-Derby, CT
203-940 Stamford, CT
203-871 Branford, CT
203-388 Stamford, CT
203-462 Stamford, CT
203-561 Stamford, CT
203-610 Bridgeport, CT
203-258 Bridgeport, CT
203-381 Bridgeport, CT
203-440 Meriden, CT
203-240 Danbury, CT
203-908 Bridgeport, CT
203-531 Byram, CT
203-974 New Haven, CT
203-967 Stamford, CT
203-715 Meriden, CT
203-755 Waterbury, CT
203-548 Stamford, CT
203-807 Norwalk, CT
203-508 New Haven, CT
203-498 New Haven, CT
203-495 New Haven, CT
203-767 Bridgeport, CT
203-345 Bridgeport, CT
203-586 Woodbury, CT
203-839 Norwalk, CT
203-481 Branford, CT
203-688 New Haven, CT
203-372 Bridgeport, CT
203-867 New Haven, CT
203-497 New Haven, CT
203-718 Cheshire, CT
203-907 New Haven, CT
203-525 Waterbury, CT
203-424 Darien, CT
203-420 Meriden, CT
203-386 Bridgeport, CT
203-841 Waterbury, CT
203-221 Westport, CT
203-735 Ansonia-Derby, CT
203-577 Waterbury, CT
203-430 New Haven, CT
203-250 Cheshire, CT
203-882 Milford, CT
203-371 Bridgeport, CT
203-604 Norwalk, CT
203-665 Wilton, CT
203-446 Ansonia-Derby, CT
203-256 Fairfield, CT
203-962 Stamford, CT
203-400 Trumbull, CT
203-359 Stamford, CT
203-583 Bridgeport, CT
203-635 Westport, CT
203-542 Greenwich, CT
203-454 Westport, CT
203-667 Stamford, CT
203-215 New Haven, CT
203-526 Bridgeport, CT
203-516 Ansonia-Derby, CT
203-327 Stamford, CT
203-830 Danbury, CT
203-318 Madison, CT
203-612 Bridgeport, CT
203-771 New Haven, CT
203-252 Stamford, CT
203-415 New Haven, CT
203-564 Stamford, CT
203-796 Danbury, CT
203-463 Seymour, CT
203-483 Branford, CT
203-650 Bridgeport, CT
203-757 Waterbury, CT
203-993 Bridgeport, CT
203-657 New Haven, CT
203-622 Greenwich, CT
203-861 Greenwich, CT
203-942 Danbury, CT
203-251 Stamford, CT
203-596 Waterbury, CT
203-816 Trumbull, CT
203-458 Guilford, CT
203-872 Cheshire, CT
203-332 Bridgeport, CT
203-678 Wallingford, CT
203-875 Darien, CT
203-645 New Haven, CT
203-363 Stamford, CT
203-594 New Canaan, CT
203-576 Bridgeport, CT
203-405 Woodbury, CT
203-416 Bridgeport, CT
203-891 New Haven, CT
203-271 Cheshire, CT
203-403 Ridgefield, CT
203-494 New Haven, CT
203-751 Ansonia-Derby, CT
203-865 New Haven, CT
203-870 Bridgeport, CT
203-558 Waterbury, CT
203-412 New Haven, CT
203-365 Bridgeport, CT
203-723 Naugatuck, CT
203-988 New Haven, CT
203-467 New Haven, CT
203-826 Danbury, CT
203-980 New Haven, CT
203-739 Danbury, CT
203-398 Norwalk, CT
203-761 Wilton, CT
203-282 Stamford, CT
203-277 Old Greenwich, CT
203-514 Meriden, CT
203-710 New Haven, CT
203-409 Old Greenwich, CT
203-536 Stamford, CT
203-697 Wallingford, CT
203-276 Stamford, CT
203-701 Milford, CT
203-383 Bridgeport, CT
203-881 Seymour, CT
203-344 Old Greenwich, CT
203-216 Westport, CT
203-249 Stamford, CT
203-937 New Haven, CT
203-754 Waterbury, CT
203-414 Bridgeport, CT
203-669 Darien, CT
203-801 New Canaan, CT
203-673 Bridgeport, CT
203-584 New Haven, CT
203-265 Wallingford, CT
203-819 Waterbury, CT
203-680 New Haven, CT
203-779 Madison, CT
203-894 Ridgefield, CT
203-627 New Haven, CT
203-287 New Haven, CT
203-654 New Haven, CT
203-329 Stamford, CT
203-202 Darien, CT
203-864 Bridgeport, CT
203-629 Greenwich, CT
203-749 Danbury, CT
203-218 Bridgeport, CT
203-343 Ansonia-Derby, CT
203-601 Trumbull, CT
203-896 Madison, CT
203-237 Meriden, CT
203-578 Waterbury, CT
203-378 Bridgeport, CT
203-772 New Haven, CT
203-579 Bridgeport, CT
203-821 New Haven, CT
203-606 New Haven, CT
203-792 Danbury, CT
203-200 New Haven, CT
203-518 Waterbury, CT
203-924 Huntington, CT
203-991 Norwalk, CT
203-803 Norwalk, CT
203-880 Trumbull, CT
203-535 New Haven, CT
203-346 Waterbury, CT
203-983 Greenwich, CT
203-922 Huntington, CT
203-648 Danbury, CT
203-879 Wolcott, CT
203-290 Bridgeport, CT
203-557 Westport, CT
203-489 Greenwich, CT
203-226 Westport, CT
203-306 Milford, CT
203-501 Danbury, CT
203-851 Norwalk, CT
203-939 Norwalk, CT
203-314 New Haven, CT
203-835 Norwalk, CT
203-357 Stamford, CT
203-245 Madison, CT
203-201 New Haven, CT
203-947 Danbury, CT
203-376 New Haven, CT
203-741 Wallingford, CT
203-528 Waterbury, CT
203-295 Norwalk, CT
203-574 Waterbury, CT
203-916 Bridgeport, CT
203-506 New Haven, CT
203-402 Huntington, CT
203-702 Danbury, CT
203-693 Milford, CT
203-651 Cheshire, CT
203-890 Stamford, CT
203-512 Danbury, CT
203-562 New Haven, CT
203-350 Madison, CT
203-298 New Haven, CT
203-230 New Haven, CT
203-269 Wallingford, CT
203-457 Guilford, CT
203-817 Stamford, CT
203-932 New Haven, CT
203-659 Fairfield, CT
203-392 New Haven, CT
203-338 Bridgeport, CT
203-900 Greenwich, CT
203-274 Stamford, CT
203-228 Waterbury, CT
203-909 New Haven, CT
203-698 Old Greenwich, CT
203-275 Bridgeport, CT
203-358 Stamford, CT
203-912 Stamford, CT
203-377 Bridgeport, CT
203-783 Milford, CT
203-630 Meriden, CT
203-374 Bridgeport, CT
203-728 Stamford, CT
203-652 New Canaan, CT
203-595 Stamford, CT
203-619 New Haven, CT
203-393 New Haven, CT
203-296 Bridgeport, CT
203-804 New Haven, CT
203-418 Fairfield, CT
203-550 Stamford, CT
203-286 Norwalk, CT
203-689 Guilford, CT
203-982 Waterbury, CT
203-417 Danbury, CT
203-656 Darien, CT
203-647 Milford, CT
203-572 Bridgeport, CT
203-903 New Haven, CT
203-325 Stamford, CT
203-877 Milford, CT
203-672 New Haven, CT
203-422 Greenwich, CT
203-818 Norwalk, CT
203-355 Stamford, CT
203-634 Meriden, CT
203-763 Fairfield, CT
203-428 Stamford, CT
203-521 Bridgeport, CT
203-204 Guilford, CT
203-261 Trumbull, CT
203-920 New Canaan, CT
203-653 Stamford, CT
203-317 Meriden, CT
203-935 Meriden, CT
203-515 Norwalk, CT
203-960 Stamford, CT
203-856 Norwalk, CT
203-624 New Haven, CT
203-745 New Haven, CT
203-608 Meriden, CT
203-523 Norwalk, CT
203-750 Norwalk, CT
203-239 New Haven, CT
203-466 New Haven, CT
203-736 Ansonia-Derby, CT
203-304 Newtown, CT
203-538 Huntington, CT
203-915 New Haven, CT
203-776 New Haven, CT
203-793 Wallingford, CT
203-373 Bridgeport, CT
203-533 Guilford, CT
203-999 New Haven, CT
203-260 Bridgeport, CT
203-824 New Haven, CT
203-927 New Haven, CT
203-786 New Haven, CT
203-975 Stamford, CT
203-955 Fairfield, CT
203-436 New Haven, CT
203-847 Norwalk, CT
203-605 New Haven, CT
203-347 Byram, CT
203-529 Wilton, CT
203-510 Waterbury, CT
203-798 Danbury, CT
203-989 Stamford, CT
203-981 Norwalk, CT
203-307 Fairfield, CT
203-913 Bridgeport, CT
203-587 Georgetown, CT
203-255 Fairfield, CT
203-219 Stamford, CT
203-850 New Haven, CT
203-853 Norwalk, CT
203-487 Stamford, CT
203-987 Greenwich, CT
203-658 Stamford, CT
203-293 Westport, CT
203-455 Bridgeport, CT
203-316 Stamford, CT
203-320 Darien, CT
203-628 Danbury, CT
203-582 New Haven, CT
203-382 Bridgeport, CT
203-668 New Haven, CT
203-690 Bridgeport, CT
203-567 Huntington, CT
203-444 New Haven, CT
203-888 Seymour, CT
203-995 Bridgeport, CT
203-997 Ansonia-Derby, CT
203-300 Danbury, CT
203-469 New Haven, CT
203-603 New Haven, CT
203-247 Norwalk, CT
203-714 Naugatuck, CT
203-887 New Haven, CT
203-822 Norwalk, CT
203-972 New Canaan, CT
203-926 Huntington, CT
203-977 Stamford, CT
203-326 Stamford, CT
203-675 New Haven, CT
203-638 Trumbull, CT
203-404 New Haven, CT
203-395 Bridgeport, CT
203-956 Norwalk, CT
203-559 Darien, CT
203-930 Greenwich, CT
203-970 Norwalk, CT
203-687 New Haven, CT
203-893 Ansonia-Derby, CT
203-919 Norwalk, CT
203-849 Norwalk, CT
203-777 New Haven, CT
203-429 Westport, CT
203-762 Wilton, CT
203-484 Branford, CT
203-874 Milford, CT
203-813 Byram, CT
203-785 New Haven, CT
203-904 Norwalk, CT
203-257 Bridgeport, CT
203-727 Bridgeport, CT
203-679 Wallingford, CT
203-375 Bridgeport, CT
203-676 New Haven, CT
203-938 Redding, CT
203-354 Norwalk, CT
203-905 Stamford, CT
203-461 Stamford, CT
203-243 Bridgeport, CT
203-898 Darien, CT
203-492 New Haven, CT
203-681 Byram, CT
203-831 Norwalk, CT
203-431 Ridgefield, CT
203-352 Stamford, CT
203-854 Norwalk, CT
203-241 Danbury, CT
203-852 Norwalk, CT
203-823 New Haven, CT
203-324 Stamford, CT
203-712 Huntington, CT
203-294 Wallingford, CT
203-513 Huntington, CT
203-540 Bridgeport, CT
203-945 Norwalk, CT
203-685 Bridgeport, CT