540
Area code 540
Virginia, United States
National (540) 555-0123, E.164 +15405550123
How the 800 central office codes (exchanges) of area code 540 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 540 number is mobile, fixed line or VoIP according to its exchange, the three digits after the area code; the allocation is the original one (below).
At a glance
- Country code
- +1
- State
- VA
- Exchanges on record
- 800
- Carriers on record
- 41
- Mobile 272 (34%)
- Fixed line 395 (49%)
- VoIP 120 (15%)
- No line type on record 13 (2%)
- 800 exchanges on record
Most exchanges: Verizon 283, T-Mobile 89, AT&T 81.
Check a number
Valid fixed line or mobile number in the United States.
+1
country code
540
area code
5550123
subscriber number
| Country | United States numbering plan |
|---|---|
| Line type | Fixed line or mobile |
| Carrier the block was allocated to | No carrier on record for this prefix |
| E.164 | +15405550123 |
| International | +1 540-555-0123 |
| National | (540) 555-0123 |
| RFC 3966 | tel:+1-540-555-0123 |
Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)
The example is 540-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.
The exchange map
One cell per exchange: blocks 540 2xx to 540 9xx; in each block the row is the tens digit, the column the units digit.
- Mobile 272
- Fixed line 395
- VoIP 120
- No line type on record 13
Formats and patterns
| E.164 | +15405550123 |
|---|---|
| International | +1 540-555-0123 |
| National | (540) 555-0123 |
| RFC 3966 (tel: URI) | tel:+1-540-555-0123 |
Any 540 number, in E.164
^\+1540[2-9]\d{6}$+1, the area code, a central office code that does not start with 0 or 1, then four digits.
Mobile exchanges (272 on record)
^\+1540(?:2(?:0[157]|1[269]|2[02369]|3[0389]|4[13467]|5[0-25-79]|6[037]|7[0-356]|8[057]|9[02-5])|3(?:0[03589]|1[2-69]|2[01357]|3[03569]|5[3-579]|79|8[35]|9[1278])|4(?:0[5-9]|1[3-59]|2[0-24-69]|3[015]|4[06-9]|5[1457]|6[0167]|7[1568]|8[016-8]|9[02378])|5(?:05|1[49]|2[0-2459]|3[237-9]|4[01]|5[06]|6[09]|7[0-2578]|8[0389]|9[89])|6(?:0[57]|1[356]|2[013479]|3[04]|4[19]|56|6[049]|7[013679]|8[02358]|9[015])|7(?:0[46]|1[478]|2[89]|3[49]|4[2689]|5[07-9]|6[0-2458]|71|8[34]|9[3578])|8(?:0[457-9]|1[03-9]|2[03]|3[056]|4[0-25-9]|5[09]|7[013-58]|81)|9(?:0[36]|1[03-5]|[24]0|3[58]|58|6[048]|7[45]|9[358]))\d{4}$Fixed line exchanges (395 on record)
^\+1540(?:2(?:0[0469]|1[48]|2[1478]|3[124-6]|4[2589]|5[348]|6[124-689]|7[7-9]|8[1-4689]|9[16-8])|3(?:0[1267]|1[078]|2[2469]|3[12478]|4[1-9]|5[0-28]|6\d|7[0-8]|8[0-2479]|9[4-69])|4(?:0[23]|1[26]|2[378]|3[2-4689]|4[12]|5[269]|6[2-589]|7[2-47]|8[2-49]|9[149])|5(?:0[0-467]|1[0236-8]|2[36-8]|3[0156]|4[2-57-9]|5[1-47-9]|6[1-578]|7[3469]|8[125-7]|9[1-367])|6(?:0[1-489]|10|2[256]|3[135-79]|4[3-58]|5[1-47-9]|6[1-3578]|7[2458]|8[1479]|9[2-467])|7(?:0[79]|1[023569]|2[0-35-7]|3[135-8]|4[01357]|5[12]|6[3679]|7[2-68]|8[5-9]|9[29])|8(?:0[1-3]|2[125-9]|3[1-47-9]|43|5[1-8]|6[02-9]|7[279]|8[24-8]|9[0-24-9])|9(?:0[457-9]|1[267]|[24][1-35-9]|3[1-379]|5[1-5]|6[125-79]|7[0-27]|8[0-79]|9[124679]))\d{4}$VoIP exchanges (120 on record)
^\+1540(?:2(?:0[238]|1[0357]|25|37|40|74|99)|3(?:04|28|40|56|8[68]|9[03])|4(?:0[014]|1[078]|37|4[3-5]|5[038]|7[09]|85|9[56])|5(?:0[89]|15|[38]4|[46]6|9[045])|6(?:0[06]|1[247-9]|28|3[28]|4[0267]|5[05]|[68]6|9[89])|7(?:0[1-358]|[24]4|3[02]|5[3-6]|7[079]|8[0-2]|9[0146])|8(?:0[06]|12|[24]4|61|76|8[039]|93)|9(?:0[0-2]|1[89]|[24]4|3[046]|5[67]|63|7[389]|88|90))\d{4}$The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.
Carriers and their exchanges
Every carrier holding exchanges in 540, with the exchanges allocated to it (the three digits after the area code).
| Carrier | Exchanges | Mobile | Fixed line | VoIP | Exchanges held |
|---|---|---|---|---|---|
| Verizon | 283 | 79 | 204 | 0 | 204, 206, 209, 216, 220, 223–224, 226, 230, 234–235, 239, 245, 248–250, 253–254, 259, 262, 265, 267–270, 272–273, 277, 280, 284–286, 288–290, 292, 296–298, 308, 310, 315, 321, 324, 326, 329, 332–333, 336–338, 341–345, 347, 349, 351, 359, 361–362, 364, 366, 368, 370–375, 377–378, 380–382, 384, 387, 389, 394, 399, 402, 414, 419–423, 427–428, 430–434, 438–439, 442, 447, 456, 460, 469, 471, 480, 486–487, 490, 492, 498, 507, 510, 512, 520–521, 524–525, 529, 535–536, 542–543, 545, 547–548, 552–554, 557–558, 561–564, 568, 571, 574, 581–582, 586–589, 592, 613, 621, 629, 633–634, 639, 643–644, 653–654, 656–663, 665, 667–668, 672, 674, 677–680, 682, 687, 693, 710, 716–718, 720, 722–723, 725–728, 731, 733, 739, 741–742, 750–752, 759, 769, 772, 774–776, 785–786, 788, 792, 797–798, 801–803, 808–810, 820, 822–823, 825, 827–835, 837, 851, 853–855, 857–858, 867–869, 872, 877, 879, 882, 885–888, 890–892, 894–896, 898–899, 903, 906, 910, 917, 921–923, 929, 937–938, 947–948, 951, 953–955, 958, 960–961, 967–968, 972, 977, 980–983, 985–987, 989, 994, 997, 999 |
| T-Mobile | 89 | 89 | 0 | 0 | 205, 238, 241, 243–244, 251–252, 257, 260, 263, 271, 276, 287, 293–295, 313, 316, 323, 325, 327, 335, 379, 383, 385, 397–398, 408, 415, 429, 435, 440, 446, 448, 451, 455, 457, 461, 466–467, 476, 478, 481, 497, 505, 514, 519, 522, 537, 560, 569, 578, 583, 605, 607, 615, 620, 627, 630, 641, 649, 664, 671, 676, 683, 685, 688, 749, 757, 762, 768, 784, 793, 805, 807, 816–819, 836, 849, 859, 878, 914–915, 974–975, 993, 995 |
| AT&T | 81 | 66 | 15 | 0 | 207, 212, 219, 222, 229, 233, 246–247, 255–256, 266, 282, 300, 303, 305, 314, 319, 353–355, 369, 376, 405–407, 409, 413, 424–426, 449, 454, 494, 532–533, 538–539, 550, 556, 573, 577, 602, 623–624, 669, 681, 690, 696–697, 714, 729, 734, 746, 748, 758, 760–761, 764, 771, 783, 814–815, 826, 840–842, 845–848, 850, 866, 873, 913, 920, 935, 940, 945, 952, 991, 998 |
| Lumen | 80 | 0 | 78 | 2 | 200, 227–228, 231–232, 236, 242, 258, 261, 264, 283, 291, 301–302, 307, 334, 346, 348, 352, 360, 365, 367, 393, 412, 416, 462–464, 482–485, 489, 491, 504, 518, 526–527, 531, 549, 551, 576, 579, 585, 601, 608–609, 622, 631, 635–637, 645, 648, 652, 675, 684, 689, 692, 694, 707, 709, 713, 719, 721, 743, 767, 778, 799, 821, 843, 860, 904–905, 907–908, 912, 916, 931, 971 |
| Onvoy | 30 | 0 | 0 | 30 | 202–203, 210, 215, 274, 304, 340, 410, 417, 453, 515, 534, 546, 590, 614, 666, 701, 703, 779–781, 876, 880, 900, 919, 930, 934, 956–957, 963 |
| Bandwidth.com | 24 | 0 | 0 | 24 | 208, 213, 328, 390, 418, 437, 443–445, 450, 458, 495, 509, 584, 612, 617, 632, 642, 705, 753, 782, 883, 918, 924 |
| UScellular | 23 | 23 | 0 | 0 | 309, 312, 320, 330, 339, 357, 391–392, 488, 493, 570, 572, 580, 598–599, 616, 691, 695, 765, 813, 871, 874–875 |
| Comcast | 21 | 0 | 0 | 21 | 217, 225, 237, 356, 388, 400, 404, 479, 508, 628, 686, 699, 702, 732, 754–756, 777, 812, 901–902 |
| CoreTel | 20 | 0 | 20 | 0 | 218, 281, 306, 322, 395, 452, 472, 500–503, 506, 513, 516–517, 528, 530, 715, 738, 766 |
| Lumos Telephone | 20 | 0 | 20 | 0 | 221, 473, 567, 591, 747, 862–863, 884, 928, 932, 941–943, 946, 949, 962, 965–966, 969, 992 |
| Paetec Itel | 11 | 0 | 11 | 0 | 278, 317–318, 441, 523, 597, 603–604, 735–737 |
| Shenandoah Telephone Company | 10 | 0 | 10 | 0 | 331, 436, 459, 465, 477, 740, 852, 856, 933, 984 |
| TELNYX | 10 | 0 | 0 | 10 | 600, 606, 655, 708, 724, 730, 861, 889, 893, 973 |
| Peerless Network | 9 | 0 | 0 | 9 | 386, 401, 496, 594–595, 619, 698, 744, 770 |
| Frontier | 8 | 0 | 8 | 0 | 559, 593, 651, 745, 763, 789, 927, 970 |
| Emergency Networks | 7 | 7 | 0 | 0 | 540–541, 670, 673, 704, 804, 870 |
| Shentel Communications Company | 6 | 0 | 6 | 0 | 214, 565, 773, 838, 865, 909 |
| MGW Telephone Company | 5 | 0 | 5 | 0 | 279, 396, 925, 939, 996 |
| Fractel | 4 | 0 | 0 | 4 | 240, 299, 844, 978 |
| HD Carrier | 4 | 0 | 0 | 4 | 618, 796, 806, 979 |
| TDS Telecom | 4 | 0 | 4 | 0 | 596, 839, 864, 897 |
| Vonage | 4 | 0 | 0 | 4 | 566, 646, 791, 944 |
| Brightlink Communications | 3 | 2 | 0 | 1 | 795, 824, 881 |
| CSC Wireless LLC | 3 | 3 | 0 | 0 | 475, 575, 706 |
| Highland Telephone Cooperative | 3 | 0 | 3 | 0 | 468, 474, 499 |
| Twilio International | 3 | 0 | 0 | 3 | 470, 936, 990 |
| Airus Inc | 2 | 0 | 2 | 0 | 403, 926 |
| COMMIO LLC | 2 | 0 | 0 | 2 | 640, 988 |
| Dish Wireless | 2 | 2 | 0 | 0 | 275, 964 |
| MGW Networks | 2 | 0 | 2 | 0 | 610, 712 |
| Optimum | 2 | 0 | 2 | 0 | 358, 787 |
| Pembroke Telephone Cooperative | 2 | 0 | 2 | 0 | 544, 626 |
| YMax Communications | 2 | 0 | 0 | 2 | 638, 650 |
| Access2Go | 1 | 0 | 0 | 1 | 794 |
| Airespring | 1 | 0 | 0 | 1 | 790 |
| IDT America | 1 | 0 | 1 | 0 | 625 |
| IP Horizon | 1 | 0 | 0 | 1 | 647 |
| New Hope Telephone Company | 1 | 0 | 1 | 0 | 363 |
| North River Telephone Cooperative | 1 | 0 | 1 | 0 | 350 |
| Terra Nova Telecom | 1 | 0 | 0 | 1 | 800 |
| USA Mobility | 1 | 1 | 0 | 0 | 201 |
Questions developers ask
- Where is area code 540?
- Area code 540 is in Virginia, in the United States: all 800 of its exchanges on record are there. From abroad it is dialled +1 540, then the seven-digit number.
- Is a 540 number mobile or landline?
- Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 800 exchanges on record in 540, 272 (34%) were allocated as mobile, 395 (49%) as fixed line, 120 (15%) as VoIP and 13 (2%) have no line type on record. A number can have been ported since, to another carrier and even to another line type.
- Which carriers have numbers in area code 540?
- 41 carriers hold exchanges in 540 on record; the most: Verizon (283), T-Mobile (89) and AT&T (81). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell.
- How do I validate a 540 phone number?
- In E.164 a 540 number matches ^\+1540[2-9]\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (540) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.