There are more than 315 US state area codes which are all allocated to specific states, towns, and cities throughout the United States. There are also 15 other US area codes that aren’t assigned to a specific geographic region.

Some states use just one area code for the entire state but the majority use different and unique US state area codes for cities, towns, and counties, or specific geographical regions of a US state. Generally, highly populated states in the US have more than one US state area code to ensure there is a continual supply of phone numbers in the region.

If you want to go straight to our complete listing of US State area codes (below), click HERE.

Area Code Listing by Number

The state of California has the largest number of US state area codes, 36 of them! Texas has the second most with 27 and Florida has 18 different area codes.

Some US states are assigned to a single area code if their population is not that high, while many US state area codes have been created and added to states that have a much larger population. By adding new area codes, millions of new numbers become available for a specific region of a state.

Area Code Listing By Number

The United States area codes were created and are monitored by Federal state authorities, the North American Numbering Plan Administrator (NANP), and the FCC have jurisdiction over the telephone number administration. The FCC gives the authority to states when deciding when and how to add and introduce area code listings by number in the US.

An area code overlay is an addition of another area code to the same geographic area as an existing area code. The area code listing by number system is added to the existing area to make sure there is a continual supply of phone numbers in the region. What this means is that more than one area code will serve a specific state or a certain geographical area within that state. This is known as an overlay.

When the population and saturation of phone numbers reach capacity in a specific area an additional 3-digit overlay is added. This is generally not a cause for concern because you won’t have to change your existing number or area code, it will continue to function as normal.

Even if you are calling someone who has the same area code listing as you, you must dial the area code + the telephone number, typically a total of 10-digits.

The Area Code Listing by Number table below displays the 300+ dialing codes required when making calls to those in different states and areas throughout the U.S. The area code listing table is in numerical order for your convenience.

What you will find useful about this table is that if you receive a phone call from a friend, family member, colleague, or business inquiry, you will generally be able to tell what state they are calling from by identifying which 3-digit area code they have from the list below.

From a business perspective, many people leave voicemails with their telephone number but they rarely say what state they are calling from. By using our area code listing by number table below, you can usually determine this before calling them back.

Since there are different time zones in the U.S., if you happen to be on the East Coast and receive a voicemail from someone who you have determined might have called you from a California area code, you might want to wait before calling them at 9:00 am ET, because it will be 6:00 am in CA!

Of course, this is not a hard and fast rule because someone may have lived in CA and since moved to NYC, but still have their CA area code phone number, which often happens. Nonetheless, the list of area codes by state table below will always be extremely useful to you, so bookmark this page.

List of Area Codes by State

The following area code listing by number table shows all the various US state area codes in numerical order. The next time you receive a call from an area code you do not recognize you can refer to this table and quickly find what state the person is calling from.

US Area CodesStateArea Codes by State
201NJNew Jersey Area Code
202DCWashington, D.C. Area Code (Changed to 771 in 2021)
203CTConnecticut Area Code
205ALAlabama Area Code
206WAWashington Area Code
207MEMaine Area Code
208IDIdaho Area Code
209CACalifornia Area Code
210TXTexas Area Code
212NYNew York Area Code
213CACalifornia Area Code
214TXTexas Area Code (Changed to 945 in 2021)
215PAPennsylvania Area Code
216OHOhio Area Code
217ILIllinois Area Code (Changed to 447 in 2021)
218MNMinnesota Area Code
219INIndiana Area Code
220OHOhio Area Code
223PAPennsylvania Area Code
224ILIllinois Area Code
225LALouisiana Area Code
228MSMississippi Area Code
229GAGeorgia Area Code
231MIMichigan Area Code
234OHOhio Area Code
239FLFlorida Area Code
240MDMaryland Area Code
248MIMichigan Area Code
251ALAlabama Area Code
252NCNorth Carolina Area Code
253WAWashington Area Code
254TXTexas Area Code
256ALAlabama Area Code
260INIndiana Area Code
262WIWisconsin Area Code
267PAPennsylvania Area Code
269MIMichigan Area Code
270KYKentucky Area Code
272PAPennsylvania Area Code
276VAVirginia Area Code
278MIMichigan Area Code
281TXTexas Area Code
283OHOhio Area Code
301MDMaryland Area Code
302DEDelaware Area Code
303COColorado Area Code
304WVWest Virginia Area Code
305FLFlorida Area Code
307WYWyoming Area Code
308NENebraska Area Code
309ILIllinois Area Code
310CACalifornia Area Code
312ILIllinois Area Code
313MIMichigan Area Code
314MOMissouri Area Code
315NYNew York Area Code
316KSKansas Area Code
317INIndiana Area Code
318LALouisiana Area Code
319IAIowa Area Code
320MNMinnesota Area Code
321FLFlorida Area Code
323CACalifornia Area Code
325TXTexas Area Code
330OHOhio Area Code
331ILIllinois Area Code
332NYNew York Area Code
334ALAlabama Area Code
336NCNorth Carolina Area Code
337LALouisiana Area Code
339MAMassachusetts Area Code
346TXTexas Area Code
347NYNew York Area Code
351MAMassachusetts Area Code
352FLFlorida Area Code
360WAWashington Area Code
361TXTexas Area Code
380OHOhio Area Code
385UTUtah Area Code
386FLFlorida Area Code
401RIRhode Island Area Code
402NENebraska Area Code
404GAGeorgia Area Code
405OKOklahoma Area Code (Changed to 572 in 2021)
406MTMontana Area Code
407FLFlorida Area Code
408CACalifornia Area Code
409TXTexas Area Code
410MDMaryland Area Code
412PAPennsylvania Area Code
413MAMassachusetts Area Code
414WIWisconsin Area Code
415CACalifornia Area Code
417MOMissouri Area Code
419OHOhio Area Code
423TNTennessee Area Code
424CACalifornia Area Code
425WAWashington Area Code
430TXTexas Area Code
432TXTexas Area Code
434VAVirginia Area Code
435UTUtah Area Code
440OHOhio Area Code
442CACalifornia Area Code
443MDMaryland Area Code
447ILIllinois Area Code (Changed from 217 in 2021)
448FLFlorida Area Code (Changed from 850 in 2021)
458OROregon Area Code
464ILIllinois Area Code
469TXTexas Area Code (Changed to 945 in 2021)
470GAGeorgia Area Code
475CTConnecticut Area Code
478GAGeorgia Area Code
479ARArkansas Area Code
480AZArizona Area Code
484PAPennsylvania Area Code
501ARArkansas Area Code
502KYKentucky Area Code
503OROregon Area Code
504LALouisiana Area Code
505NMNew Mexico Area Code
507MNMinnesota Area Code
508MAMassachusetts Area Code
509WAWashington Area Code
510CACalifornia Area Code
512TXTexas Area Code
513OHOhio Area Code
515IAIowa Area Code
516NYNew York Area Code
517MIMichigan Area Code
518NYNew York Area Code
520AZArizona Area Code
530CACalifornia Area Code
539OKOklahoma Area Code
540VAVirginia Area Code
541OROregon Area Code
551NJNew Jersey Area Code
557MOMissouri Area Code
559CACalifornia Area Code
561FLFlorida Area Code
562CACalifornia Area Code
563IAIowa Area Code
564WAWashington Area Code
567OHOhio Area Code
570PAPennsylvania Area Code
571VAVirginia Area Code
572OKOklahoma Area Code (Changed from 405 in 2021)
573MOMissouri Area Code
574INIndiana Area Code
575NMNew Mexico Area Code
580OKOklahoma Area Code
585NYNew York Area Code
586MIMichigan Area Code
601MSMississippi Area Code
602AZArizona Area Code
603NHNew Hampshire Area Code
605SDSouth Dakota Area Code
606KYKentucky Area Code
607NYNew York Area Code
608WIWisconsin Area Code
609NJNew Jersey Area Code
610PAPennsylvania Area Code
612MNMinnesota Area Code
614OHOhio Area Code
615TNTennessee Area Code
616MIMichigan Area Code
617MAMassachusetts Area Code
618ILIllinois Area Code
619CACalifornia Area Code
620KSKansas Area Code
623AZArizona Area Code
626CACalifornia Area Code
628CACalifornia Area Code
629TNTennessee Area Code
630ILIllinois Area Code
631NYNew York Area Code
636MOMissouri Area Code
641IAIowa Area Code
646NYNew York Area Code
650CACalifornia Area Code
651MNMinnesota Area Code
657CACalifornia Area Code
660MOMissouri Area Code
661CACalifornia Area Code
662MSMississippi Area Code
667MDMaryland Area Code
669CACalifornia Area Code
678GAGeorgia Area Code
679MIMichigan Area Code
681WVWest Virginia Area Code
682TXTexas Area Code
689FLFlorida Area Code
701NDNorth Dakota Area Code
702NVNevada Area Code
703VAVirginia Area Code
704NCNorth Carolina Area Code
706GAGeorgia Area Code
707CACalifornia Area Code
708ILIllinois Area Code
712IAIowa Area Code
713TXTexas Area Code
714CACalifornia Area Code
715WIWisconsin Area Code
716NYNew York Area Code
717PAPennsylvania Area Code
718NYNew York Area Code
719COColorado Area Code
720COColorado Area Code
724PAPennsylvania Area Code
725NVNevada Area Code
727FLFlorida Area Code
731TNTennessee Area Code
732NJNew Jersey Area Code
734MIMichigan Area Code
737TXTexas Area Code
740OHOhio Area Code
743NCNorth Carolina Area Code
747CACalifornia Area Code
754FLFlorida Area Code
757VAVirginia Area Code
760CACalifornia Area Code
762GAGeorgia Area Code
763MNMinnesota Area Code
765INIndiana Area Code
769MSMississippi Area Code
770GAGeorgia Area Code
771DCWashington, D.C. Area Code (Changed from 202 in 2021)
772FLFlorida Area Code
773ILIllinois Area Code
774MAMassachusetts Area Code
775NVNevada Area Code
779ILIllinois Area Code
781MAMassachusetts Area Code
786FLFlorida Area Code
801UTUtah Area Code
802VTVermont Area Code
803SCSouth Carolina Area Code
804VAVirginia Area Code
805CACalifornia Area Code
806TXTexas Area Code
808HIHawaii Area Code
810MIMichigan Area Code
812INIndiana Area Code
813FLFlorida Area Code
814PAPennsylvania Area Code
815ILIllinois Area Code
816MOMissouri Area Code
817TXTexas Area Code
818CACalifornia Area Code
828NCNorth Carolina Area Code
830TXTexas Area Code
831CACalifornia Area Code
832TXTexas Area Code
835PAPennsylvania Area Code
843SCSouth Carolina Area Code
845NYNew York Area Code
847ILIllinois Area Code
848NJNew Jersey Area Code
850FLFlorida Area Code (Changed to 448 in 2021)
856NJNew Jersey Area Code
857MAMassachusetts Area Code
858CACalifornia Area Code
859KYKentucky Area Code
860CTConnecticut Area Code
862NJNew Jersey Area Code
863FLFlorida Area Code
864SCSouth Carolina Area Code
865TNTennessee Area Code
870ARArkansas Area Code
872ILIllinois Area Code
901TNTennessee Area Code
903TXTexas Area Code
904FLFlorida Area Code
906MIMichigan Area Code
907AKAlaska Area Code
908NJNew Jersey Area Code
909CACalifornia Area Code
910NCCalifornia Area Code
912GAGeorgia Area Code
913KSKansas Area Code
914NYNew York Area Code
915TXTexas Area Code
916CACalifornia Area Code
917NYNew York Area Code
918OKOklahoma Area Code
919NCNorth Carolina Area Code
920WIWisconsin Area Code
925CACalifornia Area Code
927FLFlorida Area Code
928AZArizona Area Code
929NYNew York Area Code
931TNTennessee Area Code
935CACalifornia Area Code
936TXTexas Area Code
937OHOhio Area Code
940TXTexas Area Code
941FLFlorida Area Code
945TXTexas Area Code (Changed from 214 in 2021)
947MIMichigan Area Code
949CACalifornia Area Code
951CACalifornia Area Code
952MNMinnesota Area Code
954FLFlorida Area Code
956TXTexas Area Code
957NMNew Mexico Area Code
959CTConnecticut Area Code
970COColorado Area Code
971OROregon Area Code
972TXTexas Area Code
973NJNew Jersey Area Code
975MOMissouri Area Code
978MAMassachusetts Area Code
979TXTexas Area Code
980NCNorth Carolina Area Code
984NCNorth Carolina Area Code
985LALouisiana Area Code
989MIMichigan Area Code