Reference Data

Area Code Directory

Area Code 837 — California, California

Area Code 837 — California, California

Active

Data last updated: March 10, 2026

State

California

Country

US

Timezone

Assigned

January 1, 1947

Exchanges (NXX)

786

Carriers

0

Rate Centers

0

Overlay

Yes — 530

Rate Centers

Exchange Listings (NXX)

NPA-NXX	Carrier	Rate Center	Type	LATA	Status
837-200			Landline		active
837-201			Landline		active
837-202			Landline		active
837-203			Landline		active
837-204			Landline		active
837-205			Landline		active
837-206			Landline		active
837-207			Landline		active
837-208			Landline		active
837-209			Landline		active
837-210			Landline		active
837-212			Landline		active
837-213			Landline		active
837-214			Landline		active
837-215			Landline		active
837-216			Landline		active
837-217			Landline		active
837-218			Landline		active
837-219			Landline		active
837-220			Landline		active
837-221			Landline		active
837-222			Landline		active
837-223			Landline		active
837-224			Landline		active
837-225			Landline		active
837-226			Landline		active
837-227			Landline		active
837-228			Landline		active
837-229			Landline		active
837-230			Landline		active
837-231			Landline		active
837-232			Landline		active
837-233			Landline		active
837-234			Landline		active
837-235			Landline		active
837-236			Landline		active
837-237			Landline		active
837-238			Landline		active
837-239			Landline		active
837-240			Landline		active
837-241			Landline		active
837-242			Landline		active
837-243			Landline		active
837-244			Landline		active
837-245			Landline		active
837-246			Landline		active
837-247			Landline		active
837-248			Landline		active
837-249			Landline		active
837-250			Landline		active
837-251			Landline		active
837-252			Landline		active
837-253			Landline		active
837-254			Landline		active
837-255			Landline		active
837-256			Landline		active
837-257			Landline		active
837-258			Landline		active
837-259			Landline		active
837-260			Landline		active
837-261			Landline		active
837-262			Landline		active
837-263			Landline		active
837-264			Landline		active
837-265			Landline		active
837-266			Landline		active
837-267			Landline		active
837-268			Landline		active
837-269			Landline		active
837-270			Landline		active
837-271			Landline		active
837-272			Landline		active
837-273			Landline		active
837-274			Landline		active
837-275			Landline		active
837-276			Landline		active
837-277			Landline		active
837-278			Landline		active
837-279			Landline		active
837-280			Landline		active
837-281			Landline		active
837-282			Landline		active
837-283			Landline		active
837-284			Landline		active
837-285			Landline		active
837-286			Landline		active
837-287			Landline		active
837-288			Landline		active
837-289			Landline		active
837-290			Landline		active
837-291			Landline		active
837-292			Landline		active
837-293			Landline		active
837-294			Landline		active
837-295			Landline		active
837-296			Landline		active
837-297			Landline		active
837-298			Landline		active
837-299			Landline		active
837-300			Landline		active
837-301			Landline		active
837-302			Landline		active
837-303			Landline		active
837-304			Landline		active
837-305			Landline		active
837-306			Landline		active
837-307			Landline		active
837-308			Landline		active
837-309			Landline		active
837-310			Landline		active
837-312			Landline		active
837-313			Landline		active
837-314			Landline		active
837-315			Landline		active
837-316			Landline		active
837-317			Landline		active
837-318			Landline		active
837-319			Landline		active
837-320			Landline		active
837-321			Landline		active
837-322			Landline		active
837-323			Landline		active
837-324			Landline		active
837-325			Landline		active
837-326			Landline		active
837-327			Landline		active
837-328			Landline		active
837-329			Landline		active
837-330			Landline		active
837-331			Landline		active
837-332			Landline		active
837-333			Landline		active
837-334			Landline		active
837-335			Landline		active
837-336			Landline		active
837-337			Landline		active
837-338			Landline		active
837-339			Landline		active
837-340			Landline		active
837-341			Landline		active
837-342			Landline		active
837-343			Landline		active
837-344			Landline		active
837-345			Landline		active
837-346			Landline		active
837-347			Landline		active
837-348			Landline		active
837-349			Landline		active
837-350			Landline		active
837-351			Landline		active
837-352			Landline		active
837-353			Landline		active
837-354			Landline		active
837-355			Landline		active
837-356			Landline		active
837-357			Landline		active
837-358			Landline		active
837-359			Landline		active
837-360			Landline		active
837-361			Landline		active
837-362			Landline		active
837-363			Landline		active
837-364			Landline		active
837-365			Landline		active
837-366			Landline		active
837-367			Landline		active
837-368			Landline		active
837-369			Landline		active
837-370			Landline		active
837-371			Landline		active
837-372			Landline		active
837-373			Landline		active
837-374			Landline		active
837-375			Landline		active
837-376			Landline		active
837-377			Landline		active
837-378			Landline		active
837-379			Landline		active
837-380			Landline		active
837-381			Landline		active
837-382			Landline		active
837-383			Landline		active
837-384			Landline		active
837-385			Landline		active
837-386			Landline		active
837-387			Landline		active
837-388			Landline		active
837-389			Landline		active
837-390			Landline		active
837-391			Landline		active
837-392			Landline		active
837-393			Landline		active
837-394			Landline		active
837-395			Landline		active
837-396			Landline		active
837-397			Landline		active
837-398			Landline		active
837-399			Landline		active
837-400			Landline		active
837-401			Landline		active
837-402			Landline		active
837-403			Landline		active
837-404			Landline		active
837-405			Landline		active
837-406			Landline		active
837-407			Landline		active
837-408			Landline		active
837-409			Landline		active
837-410			Landline		active
837-412			Landline		active
837-413			Landline		active
837-414			Landline		active
837-415			Landline		active
837-416			Landline		active
837-417			Landline		active
837-418			Landline		active
837-419			Landline		active
837-420			Landline		active
837-421			Landline		active
837-422			Landline		active
837-423			Landline		active
837-424			Landline		active
837-425			Landline		active
837-426			Landline		active
837-427			Landline		active
837-428			Landline		active
837-429			Landline		active
837-430			Landline		active
837-431			Landline		active
837-432			Landline		active
837-433			Landline		active
837-434			Landline		active
837-435			Landline		active
837-436			Landline		active
837-437			Landline		active
837-438			Landline		active
837-439			Landline		active
837-440			Landline		active
837-441			Landline		active
837-442			Landline		active
837-443			Landline		active
837-444			Landline		active
837-445			Landline		active
837-446			Landline		active
837-447			Landline		active
837-448			Landline		active
837-449			Landline		active
837-450			Landline		active
837-451			Landline		active
837-452			Landline		active
837-453			Landline		active
837-454			Landline		active
837-455			Landline		active
837-456			Landline		active
837-457			Landline		active
837-458			Landline		active
837-459			Landline		active
837-460			Landline		active
837-461			Landline		active
837-462			Landline		active
837-463			Landline		active
837-464			Landline		active
837-465			Landline		active
837-466			Landline		active
837-467			Landline		active
837-468			Landline		active
837-469			Landline		active
837-470			Landline		active
837-471			Landline		active
837-472			Landline		active
837-473			Landline		active
837-474			Landline		active
837-475			Landline		active
837-476			Landline		active
837-477			Landline		active
837-478			Landline		active
837-479			Landline		active
837-480			Landline		active
837-481			Landline		active
837-482			Landline		active
837-483			Landline		active
837-484			Landline		active
837-485			Landline		active
837-486			Landline		active
837-487			Landline		active
837-488			Landline		active
837-489			Landline		active
837-490			Landline		active
837-491			Landline		active
837-492			Landline		active
837-493			Landline		active
837-494			Landline		active
837-495			Landline		active
837-496			Landline		active
837-497			Landline		active
837-498			Landline		active
837-499			Landline		active
837-500			Landline		active
837-501			Landline		active
837-502			Landline		active
837-503			Landline		active
837-504			Landline		active
837-505			Landline		active
837-506			Landline		active
837-507			Landline		active
837-508			Landline		active
837-509			Landline		active
837-510			Landline		active
837-512			Landline		active
837-513			Landline		active
837-514			Landline		active
837-515			Landline		active
837-516			Landline		active
837-517			Landline		active
837-518			Landline		active
837-519			Landline		active
837-520			Landline		active
837-521			Landline		active
837-522			Landline		active
837-523			Landline		active
837-524			Landline		active
837-525			Landline		active
837-526			Landline		active
837-527			Landline		active
837-528			Landline		active
837-529			Landline		active
837-530			Landline		active
837-531			Landline		active
837-532			Landline		active
837-533			Landline		active
837-534			Landline		active
837-535			Landline		active
837-536			Landline		active
837-537			Landline		active
837-538			Landline		active
837-539			Landline		active
837-540			Landline		active
837-541			Landline		active
837-542			Landline		active
837-543			Landline		active
837-544			Landline		active
837-545			Landline		active
837-546			Landline		active
837-547			Landline		active
837-548			Landline		active
837-549			Landline		active
837-550			Landline		active
837-551			Landline		active
837-552			Landline		active
837-553			Landline		active
837-554			Landline		active
837-556			Landline		active
837-557			Landline		active
837-558			Landline		active
837-559			Landline		active
837-560			Landline		active
837-561			Landline		active
837-562			Landline		active
837-563			Landline		active
837-564			Landline		active
837-565			Landline		active
837-566			Landline		active
837-567			Landline		active
837-568			Landline		active
837-569			Landline		active
837-570			Landline		active
837-571			Landline		active
837-572			Landline		active
837-573			Landline		active
837-574			Landline		active
837-575			Landline		active
837-576			Landline		active
837-577			Landline		active
837-578			Landline		active
837-579			Landline		active
837-580			Landline		active
837-581			Landline		active
837-582			Landline		active
837-583			Landline		active
837-584			Landline		active
837-585			Landline		active
837-586			Landline		active
837-587			Landline		active
837-588			Landline		active
837-589			Landline		active
837-590			Landline		active
837-591			Landline		active
837-592			Landline		active
837-593			Landline		active
837-594			Landline		active
837-595			Landline		active
837-596			Landline		active
837-597			Landline		active
837-598			Landline		active
837-599			Landline		active
837-600			Landline		active
837-601			Landline		active
837-602			Landline		active
837-603			Landline		active
837-604			Landline		active
837-605			Landline		active
837-606			Landline		active
837-607			Landline		active
837-608			Landline		active
837-609			Landline		active
837-610			Landline		active
837-612			Landline		active
837-613			Landline		active
837-614			Landline		active
837-615			Landline		active
837-616			Landline		active
837-617			Landline		active
837-618			Landline		active
837-619			Landline		active
837-620			Landline		active
837-621			Landline		active
837-622			Landline		active
837-623			Landline		active
837-624			Landline		active
837-625			Landline		active
837-626			Landline		active
837-627			Landline		active
837-628			Landline		active
837-629			Landline		active
837-630			Landline		active
837-631			Landline		active
837-632			Landline		active
837-633			Landline		active
837-634			Landline		active
837-635			Landline		active
837-636			Landline		active
837-637			Landline		active
837-638			Landline		active
837-639			Landline		active
837-640			Landline		active
837-641			Landline		active
837-642			Landline		active
837-643			Landline		active
837-644			Landline		active
837-645			Landline		active
837-646			Landline		active
837-647			Landline		active
837-648			Landline		active
837-649			Landline		active
837-650			Landline		active
837-651			Landline		active
837-652			Landline		active
837-653			Landline		active
837-654			Landline		active
837-655			Landline		active
837-656			Landline		active
837-657			Landline		active
837-658			Landline		active
837-659			Landline		active
837-660			Landline		active
837-661			Landline		active
837-662			Landline		active
837-663			Landline		active
837-664			Landline		active
837-665			Landline		active
837-666			Landline		active
837-667			Landline		active
837-668			Landline		active
837-669			Landline		active
837-670			Landline		active
837-671			Landline		active
837-672			Landline		active
837-673			Landline		active
837-674			Landline		active
837-675			Landline		active
837-676			Landline		active
837-677			Landline		active
837-678			Landline		active
837-679			Landline		active
837-680			Landline		active
837-681			Landline		active
837-682			Landline		active
837-683			Landline		active
837-684			Landline		active
837-685			Landline		active
837-686			Landline		active
837-687			Landline		active
837-688			Landline		active
837-689			Landline		active
837-690			Landline		active
837-691			Landline		active
837-692			Landline		active
837-693			Landline		active
837-694			Landline		active
837-695			Landline		active
837-696			Landline		active
837-697			Landline		active
837-698			Landline		active
837-699			Landline		active
837-701			Landline		active
837-702			Landline		active
837-703			Landline		active
837-704			Landline		active
837-705			Landline		active
837-706			Landline		active
837-707			Landline		active
837-708			Landline		active
837-709			Landline		active
837-710			Landline		active
837-712			Landline		active
837-713			Landline		active
837-714			Landline		active
837-715			Landline		active
837-716			Landline		active
837-717			Landline		active
837-718			Landline		active
837-719			Landline		active
837-720			Landline		active
837-721			Landline		active
837-722			Landline		active
837-723			Landline		active
837-724			Landline		active
837-725			Landline		active
837-726			Landline		active
837-727			Landline		active
837-728			Landline		active
837-729			Landline		active
837-730			Landline		active
837-731			Landline		active
837-732			Landline		active
837-733			Landline		active
837-734			Landline		active
837-735			Landline		active
837-736			Landline		active
837-737			Landline		active
837-738			Landline		active
837-739			Landline		active
837-740			Landline		active
837-741			Landline		active
837-742			Landline		active
837-743			Landline		active
837-744			Landline		active
837-745			Landline		active
837-746			Landline		active
837-747			Landline		active
837-748			Landline		active
837-749			Landline		active
837-750			Landline		active
837-751			Landline		active
837-752			Landline		active
837-753			Landline		active
837-754			Landline		active
837-755			Landline		active
837-756			Landline		active
837-757			Landline		active
837-758			Landline		active
837-759			Landline		active
837-760			Landline		active
837-761			Landline		active
837-762			Landline		active
837-763			Landline		active
837-764			Landline		active
837-765			Landline		active
837-766			Landline		active
837-767			Landline		active
837-768			Landline		active
837-769			Landline		active
837-770			Landline		active
837-771			Landline		active
837-772			Landline		active
837-773			Landline		active
837-774			Landline		active
837-775			Landline		active
837-776			Landline		active
837-777			Landline		active
837-778			Landline		active
837-779			Landline		active
837-780			Landline		active
837-781			Landline		active
837-782			Landline		active
837-783			Landline		active
837-784			Landline		active
837-785			Landline		active
837-786			Landline		active
837-787			Landline		active
837-788			Landline		active
837-789			Landline		active
837-790			Landline		active
837-791			Landline		active
837-792			Landline		active
837-793			Landline		active
837-794			Landline		active
837-795			Landline		active
837-796			Landline		active
837-797			Landline		active
837-798			Landline		active
837-799			Landline		active
837-800			Landline		active
837-801			Landline		active
837-802			Landline		active
837-803			Landline		active
837-804			Landline		active
837-805			Landline		active
837-806			Landline		active
837-807			Landline		active
837-808			Landline		active
837-809			Landline		active
837-810			Landline		active
837-812			Landline		active
837-813			Landline		active
837-814			Landline		active
837-815			Landline		active
837-816			Landline		active
837-817			Landline		active
837-818			Landline		active
837-819			Landline		active
837-820			Landline		active
837-821			Landline		active
837-822			Landline		active
837-823			Landline		active
837-824			Landline		active
837-825			Landline		active
837-826			Landline		active
837-827			Landline		active
837-828			Landline		active
837-829			Landline		active
837-830			Landline		active
837-831			Landline		active
837-832			Landline		active
837-833			Landline		active
837-834			Landline		active
837-835			Landline		active
837-836			Landline		active
837-837			Landline		active
837-838			Landline		active
837-839			Landline		active
837-840			Landline		active
837-841			Landline		active
837-842			Landline		active
837-843			Landline		active
837-844			Landline		active
837-845			Landline		active
837-846			Landline		active
837-847			Landline		active
837-848			Landline		active
837-849			Landline		active
837-850			Landline		active
837-851			Landline		active
837-852			Landline		active
837-853			Landline		active
837-854			Landline		active
837-855			Landline		active
837-856			Landline		active
837-857			Landline		active
837-858			Landline		active
837-859			Landline		active
837-860			Landline		active
837-861			Landline		active
837-862			Landline		active
837-863			Landline		active
837-864			Landline		active
837-865			Landline		active
837-866			Landline		active
837-867			Landline		active
837-868			Landline		active
837-869			Landline		active
837-870			Landline		active
837-871			Landline		active
837-872			Landline		active
837-873			Landline		active
837-874			Landline		active
837-875			Landline		active
837-876			Landline		active
837-877			Landline		active
837-878			Landline		active
837-879			Landline		active
837-880			Landline		active
837-881			Landline		active
837-882			Landline		active
837-883			Landline		active
837-884			Landline		active
837-885			Landline		active
837-886			Landline		active
837-887			Landline		active
837-888			Landline		active
837-889			Landline		active
837-890			Landline		active
837-891			Landline		active
837-892			Landline		active
837-893			Landline		active
837-894			Landline		active
837-895			Landline		active
837-896			Landline		active
837-897			Landline		active
837-898			Landline		active
837-899			Landline		active
837-900			Landline		active
837-901			Landline		active
837-902			Landline		active
837-903			Landline		active
837-904			Landline		active
837-905			Landline		active
837-906			Landline		active
837-907			Landline		active
837-908			Landline		active
837-909			Landline		active
837-910			Landline		active
837-912			Landline		active
837-913			Landline		active
837-914			Landline		active
837-915			Landline		active
837-916			Landline		active
837-917			Landline		active
837-918			Landline		active
837-919			Landline		active
837-920			Landline		active
837-921			Landline		active
837-922			Landline		active
837-923			Landline		active
837-924			Landline		active
837-925			Landline		active
837-926			Landline		active
837-927			Landline		active
837-928			Landline		active
837-929			Landline		active
837-930			Landline		active
837-931			Landline		active
837-932			Landline		active
837-933			Landline		active
837-934			Landline		active
837-935			Landline		active
837-936			Landline		active
837-937			Landline		active
837-938			Landline		active
837-939			Landline		active
837-940			Landline		active
837-941			Landline		active
837-942			Landline		active
837-943			Landline		active
837-944			Landline		active
837-945			Landline		active
837-946			Landline		active
837-947			Landline		active
837-948			Landline		active
837-949			Landline		active
837-951			Landline		active
837-952			Landline		active
837-953			Landline		active
837-954			Landline		active
837-955			Landline		active
837-956			Landline		active
837-957			Landline		active
837-960			Landline		active
837-961			Landline		active
837-962			Landline		active
837-963			Landline		active
837-964			Landline		active
837-965			Landline		active
837-966			Landline		active
837-967			Landline		active
837-968			Landline		active
837-969			Landline		active
837-970			Landline		active
837-971			Landline		active
837-972			Landline		active
837-973			Landline		active
837-974			Landline		active
837-975			Landline		active
837-977			Landline		active
837-978			Landline		active
837-979			Landline		active
837-980			Landline		active
837-981			Landline		active
837-982			Landline		active
837-983			Landline		active
837-984			Landline		active
837-985			Landline		active
837-986			Landline		active
837-987			Landline		active
837-988			Landline		active
837-989			Landline		active
837-990			Landline		active
837-991			Landline		active
837-992			Landline		active
837-993			Landline		active
837-994			Landline		active
837-995			Landline		active
837-996			Landline		active
837-997			Landline		active
837-998			Landline		active
837-999			Landline		active

Area code 837 shares its geographic region with the following overlay area codes:

530