Virginia, United States
Eastern Time
1:49 PM
Area Code
540
State / Province
Virginia
Country
United States
Time Zone
Eastern Time
Area code 540 covers 117 cities and communities across Virginia, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+15405550100">+15405550100</a><a href="tel:+15405550199">+15405550199</a>Look up which exchange in Virginia a specific 540 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
787 active prefixes in this area code, assigned as 6,697 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 6,697
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 540-200 | 0 | Blacksburg | Landline or VoIP | TERRA NOVA TELECOM INC. (145J) | — | 244 | — | — |
| 540-200 | 1 | Blacksburg | Landline or VoIP | COMMIO, LLC (939H) | RONKVAGE3MD | 244 | — | — |
| 540-200 | 2 | Blacksburg | Landline or VoIP | ONVOY, LLC - VA (138E) | RONKVALKX1Z | 244 | — | — |
| 540-200 | 3 | Blacksburg | Landline or VoIP | ONVOY, LLC - VA (138E) | — | 244 | — | — |
| 540-200 | 4 | Blacksburg | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - VA (8825) | RONKVALKXJY | 244 | — | — |
| 540-200 | 5 | Blacksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-200 | 6 | Blacksburg | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - VA (4644) | RONKVALKX3Z | 244 | — | — |
| 540-200 | 7 | Blacksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-200 | 8 | Blacksburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | RONKVALKXYY | 244 | — | — |
| 540-200 | 9 | Blacksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-200 | A | Blacksburg | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - VA (8825) | RONKVALKXJY | 244 | — | — |
| 540-201 | A | Roanoke | Landline or VoIP | SPOK, INC. (6630) | RONKVALK2MD | 244 | — | — |
| 540-202 | 0 | The Plains | Wireless | ONVOY SPECTRUM, LLC (624H) | WNCHVAWC8MD | 246 | — | — |
| 540-202 | 1 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 2 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 3 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 4 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 5 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 6 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 7 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 8 | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-202 | 9 | The Plains | Landline or VoIP | TELNYX LLC (073H) | CLPPVACUXMD | 246 | — | — |
| 540-202 | A | The Plains | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 0 | Chancellor | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-203 | 1 | Chancellor | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-203 | 2 | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 3 | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 4 | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 5 | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 6 | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-203 | 7 | Chancellor | Wireless | ONVOY SPECTRUM, LLC (624H) | WNCHVAWC8MD | 246 | — | — |
| 540-203 | 8 | Chancellor | Wireless | ONVOY SPECTRUM, LLC (624H) | WNCHVAWC8MD | 246 | — | — |
| 540-203 | 9 | Chancellor | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | FRBGVAFBJMD | 246 | — | — |
| 540-203 | A | Chancellor | Landline or VoIP | ONVOY, LLC - VA (138E) | CLPPVACURMD | 246 | — | — |
| 540-204 | 0 | Roanoke | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | RONKVA95XSX | 244 | — | — |
| 540-204 | 1 | Roanoke | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | RONKVA95XSX | 244 | — | — |
| 540-204 | 2 | Roanoke | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | RONKVA95XSX | 244 | — | — |
| 540-204 | 3 | Roanoke | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | RONKVA95XSX | 244 | — | — |
| 540-204 | 4 | Roanoke | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | RONKVALKX2Z | 244 | — | — |
| 540-204 | 5 | Roanoke | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-204 | 6 | Roanoke | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-204 | 7 | Roanoke | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | RONKVALKXNY | 244 | — | — |
| 540-204 | 8 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-204 | 9 | Roanoke | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | RONKVALKXLY | 244 | — | — |
| 540-204 | A | Roanoke | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | RONKVALKXLY | 244 | — | — |
| 540-205 | 0 | Mineral | Landline or VoIP | METROPCS, INC. (5562) | CLPPVA94A1A | 246 | — | — |
| 540-205 | 1 | Mineral | Landline or VoIP | CORETEL VIRGINIA, LLC - VA (5832) | — | 246 | — | — |
| 540-205 | 2 | Mineral | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | LSBGVALBQMD | 246 | — | — |
| 540-205 | 3 | Mineral | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | FRBGVAFBJMD | 246 | — | — |
| 540-205 | 4 | Mineral | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-205 | 5 | Mineral | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-205 | 6 | Mineral | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | FRBGVAFBJMD | 246 | — | — |
| 540-205 | 7 | Mineral | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-205 | 8 | Mineral | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | FRBGVAFBJMD | 246 | — | — |
| 540-205 | 9 | Mineral | Landline or VoIP | METROPCS, INC. (5562) | CLPPVA94A1A | 246 | — | — |
| 540-205 | A | Mineral | Landline or VoIP | METROPCS, INC. (5562) | CLPPVA94A1A | 246 | — | — |
| 540-206 | 0 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 1 | Roanoke | Landline | VERIZON VIRGINIA, INC. (9213) | ROANOKE LUCK | 244 | — | — |
| 540-206 | 2 | Roanoke | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | RONKVALKX2Z | 244 | — | — |
| 540-206 | 3 | Roanoke | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | RONKVALKX2Z | 244 | — | — |
| 540-206 | 4 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 5 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 6 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 7 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 8 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | 9 | Roanoke | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | RONKVALKXRX | 244 | — | — |
| 540-206 | A | Roanoke | Landline | VERIZON VIRGINIA, INC. (9213) | ROANOKE LUCK | 244 | — | — |
| 540-207 | 0 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 1 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 2 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 3 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 4 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 5 | Fredericksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-207 | 6 | Fredericksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-207 | 7 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 8 | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-207 | 9 | Fredericksburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | LSBGVALBX2X | 246 | — | — |
| 540-207 | A | Fredericksburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | BEREVA01HMD | 246 | — | — |
| 540-208 | 0 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 1 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 2 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 3 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 4 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 5 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 6 | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-208 | 7 | Harrisonburg | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | HRBGVAXAXMX | 927 | — | — |
| 540-208 | 8 | Harrisonburg | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | HRBGVAXATMD | 927 | — | — |
| 540-208 | 9 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-208 | A | Harrisonburg | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - VA (079F) | HRBGVAXAXAX | 927 | — | — |
| 540-209 | 0 | Harrisonburg | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | HRBGVAFC1MD | 927 | — | — |
| 540-209 | 1 | Harrisonburg | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | HRBGVAXATMD | 927 | — | — |
| 540-209 | 2 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-209 | 3 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-209 | 4 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-209 | 5 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-209 | 6 | Harrisonburg | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA (6827) | HRBGVAXAXOX | 927 | — | — |
| 540-209 | 7 | Harrisonburg | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | HRBGVAXATMD | 927 | — | — |
| 540-209 | 8 | Harrisonburg | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | HRBGVAXAXMX | 927 | — | — |
| 540-209 | 9 | Harrisonburg | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA (7238) | HRBGVAXARMD | 927 | — | — |
| 540-209 | A | Harrisonburg | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA (7238) | HRBGVAXARMD | 927 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
787
Assignment Blocks
6,697
Rate Centers
117
Carriers of Record
57
| Type | Blocks | Share |
|---|---|---|
| Landline | 1,143 | 17% |
| Landline or VoIP | 3,111 | 46% |
| Wireless | 2,443 | 36% |
| Carrier | Blocks |
|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 826 |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 739 |
| ONVOY, LLC - VA | 738 |
| VERIZON VIRGINIA, INC. | 715 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 459 |
| BANDWIDTH.COM CLEC, LLC - VA | 375 |
| METROPCS, INC. | 292 |
| COMCAST IP PHONE, LLC | 277 |
| LEVEL 3 COMMUNICATIONS, LLC - VA | 263 |
| UNITED STATES CELLULAR - VA | 206 |
| 47 other carriers | 1,807 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Roanoke | 106 | 883 |
| Fredericksburg | 63 | 553 |
| Harrisonburg | 43 | 311 |
| Winchester | 38 | 338 |
| Culpeper | 33 | 251 |
| Staunton | 29 | 226 |
| Blacksburg | 21 | 191 |
| Christiansburg | 18 | 167 |
| Radford | 18 | 157 |
| Stafford | 18 | 178 |
| Warrenton | 18 | 178 |
| Waynesboro | 17 | 127 |
| Rocky Mount | 13 | 100 |
| Front Royal | 12 | 112 |
| Chancellor | 11 | 91 |
| Edinburg | 11 | 87 |
| Lexington | 11 | 92 |
| Salem | 11 | 90 |
| Bedford | 10 | 89 |
| Luray | 9 | 79 |
| Covington | 8 | 66 |
| Dahlgren | 8 | 55 |
| Hartwood | 7 | 77 |
| Louisa | 7 | 75 |
| Mineral | 7 | 77 |
| Orange | 7 | 77 |
| Pearisburg | 7 | 77 |
| Pulaski | 7 | 66 |
| Dublin | 6 | 56 |
| Stone Mountain | 6 | 47 |
| Berryville | 5 | 55 |
| Buena Vista | 5 | 42 |
| Madison | 5 | 47 |
| Mount Gilead | 5 | 42 |
| Stephens City | 5 | 44 |
| Washington (Rappahannock) | 5 | 41 |
| Burnt Chimney | 4 | 34 |
| Catoctin | 4 | 42 |
| Elkton | 4 | 44 |
| Gordonsville | 4 | 36 |
| Marshall | 4 | 42 |
| Middleburg | 4 | 44 |
| Remington | 4 | 44 |
| Spotsylvania | 4 | 42 |
| The Plains | 4 | 40 |
| Troutville | 4 | 40 |
| Bluemont | 3 | 32 |
| Bridgewater | 3 | 29 |
| Broadway | 3 | 22 |
| Calverton | 3 | 27 |
| Clifton Forge | 3 | 22 |
| Ferrum | 3 | 27 |
| Glasgow | 3 | 29 |
| King George | 3 | 22 |
| Narrows | 3 | 33 |
| Natural Bridge | 3 | 28 |
| Shawsville | 3 | 27 |
| Shenandoah | 3 | 32 |
| Shenandoah Park | 3 | 28 |
| Stanley | 3 | 32 |
| Unionville | 3 | 33 |
| Ballard | 2 | 4 |
| Bent Mountain | 2 | 18 |
| Blue Grass | 2 | 3 |
| Boones Mill | 2 | 9 |
| Boyce | 2 | 22 |
| Brokenburg | 2 | 22 |
| Brownsburg | 2 | 20 |
| Buchanan | 2 | 21 |
| Craigsville | 2 | 21 |
| Criglersville | 2 | 22 |
| Deerfield | 2 | 2 |
| Edom | 2 | 15 |
| Fincastle | 2 | 18 |
| Floyd | 2 | 11 |
| Gainesboro | 2 | 22 |
| Gore | 2 | 22 |
| Greenwood | 2 | 21 |
| Grottoes | 2 | 21 |
| Hot Springs | 2 | 22 |
| Keezletown | 2 | 21 |
| McClung | 2 | 3 |
| McDowell | 2 | 3 |
| McGaheysville | 2 | 22 |
| Mill Gap | 2 | 3 |
| Monterey | 2 | 4 |
| Montvale | 2 | 22 |
| Mount Solon | 2 | 4 |
| Mountain Grove | 2 | 3 |
| New Castle | 2 | 17 |
| Raphine | 2 | 22 |
| Sperryville | 2 | 22 |
| Union Hall | 2 | 21 |
| Upperville | 2 | 22 |
| Weyers Cave | 2 | 20 |
| Williamsville | 2 | 3 |
| Woodstock | 2 | 9 |
| Alum Ridge | 1 | 1 |
| Basye | 1 | 1 |
| Bergton | 1 | 1 |
| Crows-Hematite | 1 | 10 |
| Dayton | 1 | 11 |
| Eagle Rock | 1 | 11 |
| Fort Valley | 1 | 1 |
| Hinton | 1 | 11 |
| Locust Grove | 1 | 1 |
| Mount Jackson | 1 | 1 |
| New Hope | 1 | 1 |
| New Market | 1 | 9 |
| Newport | 1 | 1 |
| Oriskany | 1 | 1 |
| Paint Bank | 1 | 11 |
| Pembroke | 1 | 1 |
| Potts Creek | 1 | 9 |
| Strasburg | 1 | 1 |
| Toms Brook | 1 | 1 |
| Willis | 1 | 1 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 540 is a North American Numbering Plan (NANP) telephone area code assigned to Virginia, United States. It is one of 10 area codes serving Virginia. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 540 is an active North American Numbering Plan (NANP) area code, currently assigned to Virginia, United States. It is safe to answer or dial calls using this area code.
Area code 540 covers 117 cities and communities in Virginia, including Alum Ridge, Ballard, Basye, Bedford, Bent Mountain, and 112 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 540 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 540 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Virginia, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 540 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 540 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 540 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +15405550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.