The area code indicates the regional location of the phone number. According to NANP, there are 405 area codes in North America.
Of these, 326 are in the US, 42 are in Canada, 17 are non-geographic virtual number, and 20 are others(mostly Caribbean).
The number of area codes is different for each area, in the future, the area with the most phone number users will have more area codes.
423 is one of the Area Codes.
Lookup area code 423 regional location
State: TennesseeRegion: Tennessee
Center City: Chattanooga, Johnson City, Kingsport
State & Region & County & City & Location map with Area Code
Too many area codes, map size limit, all area codes may not be displayed, only major area codes.
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423 is only the first 3-digit of the phone number, it can only lookup the regional location.
The full phone number is 10-digit, 423-xxx-yyyy, 423 is the area code, xxx is the Central Office, the Exchange Code, and yyyy is the subscriber number.
The list is 423-xxx all Central Office Exchange Code phone numbers.
423007 423002 423005 423009 423000 423003 423008 423004 423001 423006 423017 423012 423015 423019 423010 423013 423018 423014 423011 423016 423027 423022 423025 423029 423020 423023 423028 423024 423021 423026 423037 423032 423035 423039 423030 423033 423038 423034 423031 423036 423047 423042 423045 423049 423040 423043 423048 423044 423041 423046 423057 423052 423055 423059 423050 423053 423058 423054 423051 423056 423067 423062 423065 423069 423060 423063 423068 423064 423061 423066 423077 423072 423075 423079 423070 423073 423078 423074 423071 423076 423087 423082 423085 423089 423080 423083 423088 423084 423081 423086 423097 423092 423095 423099 423090 423093 423098 423094 423091 423096 423107 423102 423105 423109 423100 423103 423108 423104 423101 423106 423117 423112 423115 423119 423110 423113 423118 423114 423111 423116 423127 423122 423125 423129 423120 423123 423128 423124 423121 423126 423137 423132 423135 423139 423130 423133 423138 423134 423131 423136 423147 423142 423145 423149 423140 423143 423148 423144 423141 423146 423157 423152 423155 423159 423150 423153 423158 423154 423151 423156 423167 423162 423165 423169 423160 423163 423168 423164 423161 423166 423177 423172 423175 423179 423170 423173 423178 423174 423171 423176 423187 423182 423185 423189 423180 423183 423188 423184 423181 423186 423197 423192 423195 423199 423190 423193 423198 423194 423191 423196 423207 423202 423205 423209 423200 423203 423208 423204 423201 423206 423217 423212 423215 423219 423210 423213 423218 423214 423211 423216 423227 423222 423225 423229 423220 423223 423228 423224 423221 423226 423237 423232 423235 423239 423230 423233 423238 423234 423231 423236 423247 423242 423245 423249 423240 423243 423248 423244 423241 423246 423257 423252 423255 423259 423250 423253 423258 423254 423251 423256 423267 423262 423265 423269 423260 423263 423268 423264 423261 423266 423277 423272 423275 423279 423270 423273 423278 423274 423271 423276 423287 423282 423285 423289 423280 423283 423288 423284 423281 423286 423297 423292 423295 423299 423290 423293 423298 423294 423291 423296 423307 423302 423305 423309 423300 423303 423308 423304 423301 423306 423317 423312 423315 423319 423310 423313 423318 423314 423311 423316 423327 423322 423325 423329 423320 423323 423328 423324 423321 423326 423337 423332 423335 423339 423330 423333 423338 423334 423331 423336 423347 423342 423345 423349 423340 423343 423348 423344 423341 423346 423357 423352 423355 423359 423350 423353 423358 423354 423351 423356 423367 423362 423365 423369 423360 423363 423368 423364 423361 423366 423377 423372 423375 423379 423370 423373 423378 423374 423371 423376 423387 423382 423385 423389 423380 423383 423388 423384 423381 423386 423397 423392 423395 423399 423390 423393 423398 423394 423391 423396 423407 423402 423405 423409 423400 423403 423408 423404 423401 423406 423417 423412 423415 423419 423410 423413 423418 423414 423411 423416 423427 423422 423425 423429 423420 423423 423428 423424 423421 423426 423437 423432 423435 423439 423430 423433 423438 423434 423431 423436 423447 423442 423445 423449 423440 423443 423448 423444 423441 423446 423457 423452 423455 423459 423450 423453 423458 423454 423451 423456 423467 423462 423465 423469 423460 423463 423468 423464 423461 423466 423477 423472 423475 423479 423470 423473 423478 423474 423471 423476 423487 423482 423485 423489 423480 423483 423488 423484 423481 423486 423497 423492 423495 423499 423490 423493 423498 423494 423491 423496 423507 423502 423505 423509 423500 423503 423508 423504 423501 423506 423517 423512 423515 423519 423510 423513 423518 423514 423511 423516 423527 423522 423525 423529 423520 423523 423528 423524 423521 423526 423537 423532 423535 423539 423530 423533 423538 423534 423531 423536 423547 423542 423545 423549 423540 423543 423548 423544 423541 423546 423557 423552 423555 423559 423550 423553 423558 423554 423551 423556 423567 423562 423565 423569 423560 423563 423568 423564 423561 423566 423577 423572 423575 423579 423570 423573 423578 423574 423571 423576 423587 423582 423585 423589 423580 423583 423588 423584 423581 423586 423597 423592 423595 423599 423590 423593 423598 423594 423591 423596 423607 423602 423605 423609 423600 423603 423608 423604 423601 423606 423617 423612 423615 423619 423610 423613 423618 423614 423611 423616 423627 423622 423625 423629 423620 423623 423628 423624 423621 423626 423637 423632 423635 423639 423630 423633 423638 423634 423631 423636 423647 423642 423645 423649 423640 423643 423648 423644 423641 423646 423657 423652 423655 423659 423650 423653 423658 423654 423651 423656 423667 423662 423665 423669 423660 423663 423668 423664 423661 423666 423677 423672 423675 423679 423670 423673 423678 423674 423671 423676 423687 423682 423685 423689 423680 423683 423688 423684 423681 423686 423697 423692 423695 423699 423690 423693 423698 423694 423691 423696 423707 423702 423705 423709 423700 423703 423708 423704 423701 423706 423717 423712 423715 423719 423710 423713 423718 423714 423711 423716 423727 423722 423725 423729 423720 423723 423728 423724 423721 423726 423737 423732 423735 423739 423730 423733 423738 423734 423731 423736 423747 423742 423745 423749 423740 423743 423748 423744 423741 423746 423757 423752 423755 423759 423750 423753 423758 423754 423751 423756 423767 423762 423765 423769 423760 423763 423768 423764 423761 423766 423777 423772 423775 423779 423770 423773 423778 423774 423771 423776 423787 423782 423785 423789 423780 423783 423788 423784 423781 423786 423797 423792 423795 423799 423790 423793 423798 423794 423791 423796 423807 423802 423805 423809 423800 423803 423808 423804 423801 423806 423817 423812 423815 423819 423810 423813 423818 423814 423811 423816 423827 423822 423825 423829 423820 423823 423828 423824 423821 423826 423837 423832 423835 423839 423830 423833 423838 423834 423831 423836 423847 423842 423845 423849 423840 423843 423848 423844 423841 423846 423857 423852 423855 423859 423850 423853 423858 423854 423851 423856 423867 423862 423865 423869 423860 423863 423868 423864 423861 423866 423877 423872 423875 423879 423870 423873 423878 423874 423871 423876 423887 423882 423885 423889 423880 423883 423888 423884 423881 423886 423897 423892 423895 423899 423890 423893 423898 423894 423891 423896 423907 423902 423905 423909 423900 423903 423908 423904 423901 423906 423917 423912 423915 423919 423910 423913 423918 423914 423911 423916 423927 423922 423925 423929 423920 423923 423928 423924 423921 423926 423937 423932 423935 423939 423930 423933 423938 423934 423931 423936 423947 423942 423945 423949 423940 423943 423948 423944 423941 423946 423957 423952 423955 423959 423950 423953 423958 423954 423951 423956 423967 423962 423965 423969 423960 423963 423968 423964 423961 423966 423977 423972 423975 423979 423970 423973 423978 423974 423971 423976 423987 423982 423985 423989 423980 423983 423988 423984 423981 423986 423997 423992 423995 423999 423990 423993 423998 423994 423991 423996