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Area code 540

Where 540 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.

State
VA
In service
1995
Assigned codes
786of 800 possible
Carriers
54

Where area code 540 is

540 is one of 10 geographic area codes serving Virginia; NANPA records its in-service date as July 15, 1995. It is an overlay: 540 and 826 cover the same territory, so neighbors on the same street can have different area codes. It is in the Eastern time zone. The places with the most assigned exchanges include Roanoke, Fredericksburg, Harrisonburg, Winchester, and Culpeper. By population, its largest named places are Roanoke, Harrisonburg, Blacksburg, Fredericksburg, and Winchester.

Area code 540: NANPA facts
ItemValue
StateVirginia
In service sinceJuly 15, 1995
Assigned by NANPAAugust 9, 1994
OverlayYes, with 826
Parent area code (NANPA)703
Time zoneEastern
Local calls within the codeten digits (area code plus number)
Assigned central office codes786
Rate centers with codes117
Carriers holding codes54
Pooled codes628
Codes assigned since 202064
Relief planning in progressNo

Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.

Where 540 numbers are local

540 holds 16% of the 4,898 central office codes assigned in Virginia, the most of any code in the state. 59 Census places could be matched to rate centers with 540 exchanges; the most populous are Roanoke (97,912), Harrisonburg (51,164), Blacksburg (45,452), and Fredericksburg (29,992). Each place page lists the exact prefixes and carriers for that town.

Most populous places with 540 exchanges
PlacePopulation (2024)Area codesExchangesCarriers
Roanoke, VA97,912540, 82611434
Harrisonburg, VA51,164540, 8265328
Blacksburg, VA45,452540, 826239
Fredericksburg, VA29,992540, 8267216
Winchester, VA27,800540, 8264112
Staunton, VA26,361540, 826309
Salem, VA25,908540, 826138
Waynesboro, VA23,498540, 826187
Christiansburg, VA22,632540, 826238
Culpeper, VA21,464540, 8263519
Radford, VA17,273540, 826198
Front Royal, VA15,628540, 826136
Warrenton, VA10,224540, 826217
Pulaski, VA8,80554075
Bedford, VA7,823540, 826116

Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.

Ten-digit and seven-digit dialing in 540

According to NANPA's dialing-plan data, local calls within 540 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Because local calls need the area code, business cards, signage and website copy should always show the full ten-digit number. NANPA's dialing-plan note for this code reads: "1+10 digit permissible at each service provider discretion"

Who holds 540 exchanges

54 carriers hold the 786 central office codes assigned in 540. Verizon Virginia, INC. has the most, with 155 (20%). 628 of the codes (80%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.

Largest code holders in area code 540
Carrier (NANPA operating company)ExchangesShare
Verizon Virginia, INC.15520%
Cellco Partnership d/b/a Verizon Wireless - Va7910%
New Cingular Wireless PCS, LLC - DC668.4%
Omnipoint Communications Cap Operations, LLC648.1%
Level 3 Communications, LLC - Va506.4%
Verizon South, INC. - Va (contel)354.5%
Onvoy, LLC - Va303.8%
Brightspeed of Virginia, LLC283.6%
Metropcs, INC.253.2%
Bandwidth.com CLEC, LLC - Va243.1%
United States Cellular - Va232.9%
Comcast Ip Phone, LLC212.7%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Local calling areas in 540

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 540 has codes in 117 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.

Rate centers in area code 540 by assigned codes
Rate center (NANPA)PlaceCodes
ROANOKERoanoke, VA105
FREDECKSBGFredericksburg, VA63
HARRISONBGHarrisonburg, VA43
WINCHESTERWinchester, VA38
CULPEPERCulpeper, VA33
STAUNTONStaunton, VA29
BLACKSBURGBlacksburg, VA21
WARRENTONWarrenton, VA18
RADFORDRadford, VA18
STAFFORDnot matched18
CHRISTISBGChristiansburg, VA18
WAYNESBOROWaynesboro, VA17
ROCKYMOUNTRocky Mount, VA13
FRONTROYALFront Royal, VA12
CHANCELLORnot matched11
SALEMSalem, VA11
LEXINGTONLexington, VA11
EDINBURGEdinburg, VA11
BEDFORDBedford, VA10
LURAYLuray, VA9
DAHLGRENnot matched8
COVINGTONCovington, VA8
MINERALMineral, VA7
LOUISALouisa, VA7
PEARISBURGPearisburg, VA7

Top 25 of 117 rate centers.

Number supply in 540

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 786 are assigned in 540, 98% of 800. 64 were assigned in 2020 or later.

Area code 540: central office codes by decade assigned
Decade assignedExchangesShare
2000s14042%
2010s12638%
2020s6419%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Getting a 540 number for your business

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in area code 540 is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Frequently asked questions

Where is area code 540?

540 is a geographic area code in Virginia. Places with the most assigned exchanges include Roanoke, Fredericksburg, Harrisonburg, and Winchester.

What time zone is area code 540 in?

NANPA lists 540 in the Eastern time zone.

When did area code 540 go into service?

NANPA records an in-service date of July 15, 1995. The code was assigned on August 9, 1994.

Is 540 an overlay area code?

Yes. It shares its territory with 826.

Can my business get a 540 phone number?

Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 540 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.