781
Area code 781
Massachusetts, United States
National (781) 555-0123, E.164 +17815550123
How the 795 central office codes (exchanges) of area code 781 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 781 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
- MA
- Exchanges on record
- 795
- Carriers on record
- 21
- Mobile 135 (17%)
- Fixed line 547 (69%)
- VoIP 94 (12%)
- No line type on record 19 (2%)
- 795 exchanges on record
Most exchanges: Verizon 367, T-Mobile 75, AT&T 73.
Check a number
Valid fixed line or mobile number in the United States.
+1
country code
781
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 | +17815550123 |
| International | +1 781-555-0123 |
| National | (781) 555-0123 |
| RFC 3966 | tel:+1-781-555-0123 |
Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)
The example is 781-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.
The exchange map
One cell per exchange: blocks 781 2xx to 781 9xx; in each block the row is the tens digit, the column the units digit.
- Mobile 135
- Fixed line 547
- VoIP 94
- No line type on record 19
- Not on record 5
Formats and patterns
| E.164 | +17815550123 |
|---|---|
| International | +1 781-555-0123 |
| National | (781) 555-0123 |
| RFC 3966 (tel: URI) | tel:+1-781-555-0123 |
Any 781 number, in E.164
^\+1781[2-9]\d{6}$+1, the area code, a central office code that does not start with 0 or 1, then four digits.
Mobile exchanges (135 on record)
^\+1781(?:2(?:0[146]|12|2[37]|4[2389]|5[248]|6[457]|9[169])|3(?:08|30|5[14]|6[367]|79|8[2579])|4(?:0[358]|[158]4|[27][04]|45|6[89]|9[02])|5(?:0[04]|1[03]|2[056]|[39]1|4[08]|52|6[138]|7[0169]|8[089])|6(?:0[038]|32|[46]0|5[04]|89|9[0-26])|7(?:0[346]|1[08]|2[047]|3[238]|47|55|60|7[15]|89|9[89])|8(?:0[0589]|13|2[05]|44|5[568]|6[46]|77|8[389]|98)|9(?:[09]1|1[03]|2[19]|47|5[36]|6[24]|7[15]|8[0358]))\d{4}$Fixed line exchanges (547 on record)
^\+1781(?:2(?:0[23579]|1[03-9]|2[0-24589]|3[1-9]|4[014-7]|5[0135-79]|6[0-3689]|7\d|8[02-9]|9[02-578])|3(?:0[0-79]|1[02-689]|2[0-689]|3[1-8]|[49]\d|5[0236-9]|6[0-248]|7[0-25-7]|8[01368])|4(?:0[124679]|1[0235-9]|2[235689]|3[0-47-9]|4[0-46-9]|5[13579]|6[0-7]|7[1-35-9]|8[0-35-9]|9[13-9])|5(?:0[1-35-79]|1[2457-9]|2[127-9]|3[03-57-9]|4[1-79]|5[14679]|6[04579]|7[2-578]|8[1-6]|9[2-689])|6(?:0[1267]|1[025689]|[24][1-8]|3[013-9]|5[1-35-9]|6[2-58]|7[0246-9]|8[0-578]|9[3-57-9])|7(?:0[27-9]|1[235-79]|2[1-3689]|3[014-7]|[45][0-469]|6[1-37-9]|7[0468]|8[0-68]|9[1-6])|8(?:0[134]|1[04-8]|2[1346-9]|3\d|4[036-9]|5[0-479]|6[0-3579]|7[0-3689]|8[146]|9[0-579])|9(?:0[02-79]|1[24-9]|2[025-8]|3\d|4[1-4689]|5[27]|6[013568]|7[02-479]|8[12469]|9[2-9]))\d{4}$VoIP exchanges (94 on record)
^\+1781(?:2(?:0[08]|26|30|81)|3(?:[12]7|55|6[59]|7[348]|84)|4(?:00|2[17]|3[56]|5[268])|5(?:16|2[34]|[36][26]|5[38]|87|9[07])|6(?:0[459]|1[34]|2[09]|49|6[1679]|7[135]|86)|7(?:0[15]|25|39|4[58]|5[78]|6[4-6]|7[2379]|87|9[07])|8(?:0[67]|1[29]|22|4[125]|68|7[45]|8[257]|96)|9(?:[07]8|2[34]|45|5[148]|[68]7|90))\d{4}$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 781, with the exchanges allocated to it (the three digits after the area code).
| Carrier | Exchanges | Mobile | Fixed line | VoIP | Exchanges held |
|---|---|---|---|---|---|
| Verizon | 367 | 42 | 325 | 0 | 203, 207, 213, 217, 219–224, 227, 229, 231–233, 235, 237–241, 245–246, 248, 250–251, 254–265, 268, 270–276, 278–280, 282–284, 286, 288–290, 292–297, 300–301, 303–307, 309–310, 313–314, 318–322, 324, 326, 329, 331, 334–335, 337–338, 340–342, 344–345, 347–348, 356–359, 368, 371–372, 376–377, 379–380, 382–383, 386, 388, 391–398, 401–403, 407, 409–410, 412–413, 416, 422, 424, 431, 433, 438, 440–442, 444–447, 449, 453–455, 457, 459–461, 466–468, 473–474, 477–478, 480–481, 483–488, 490, 494–496, 498, 501–503, 505–506, 509, 512, 515, 517, 522, 525, 529, 531, 533, 544–545, 551, 554, 561, 563–564, 567, 574–575, 581–582, 585–586, 592–593, 595–596, 598–599, 601, 615, 618, 622–624, 628, 631, 633–634, 636, 639, 641–643, 645–648, 650, 655, 657–659, 662–663, 665, 668, 670, 672, 674, 676–677, 681–682, 684, 687, 693, 697–699, 703, 709–710, 712, 716, 718–719, 721, 723, 729, 732–733, 735–736, 740–741, 743–744, 747, 749, 751, 755–756, 759, 762, 767–769, 771, 774, 778, 782, 784, 788–789, 792–794, 796, 799, 800, 803, 808, 814, 820–821, 823, 825–826, 828–830, 832–834, 837, 839, 843, 846, 848–849, 852–853, 855, 857, 860–863, 865, 871, 876–878, 890–895, 899, 900, 902, 904, 906–907, 909–910, 912, 915, 917, 919–920, 922, 925, 930–935, 937–939, 941–942, 944, 946, 948–949, 961, 963, 970, 972–973, 977, 979–982, 984, 986, 988, 993, 997–999 |
| T-Mobile | 75 | 75 | 0 | 0 | 201, 204, 242–243, 252, 267, 291, 299, 308, 330, 351, 354, 363, 367, 385, 389, 405, 408, 414, 420, 469–470, 492, 500, 504, 510, 513, 520, 526, 540, 548, 552, 568, 570–571, 576, 579–580, 588–589, 591, 600, 603, 608, 632, 654, 691–692, 696, 704, 706, 720, 727, 760, 798, 805, 809, 813, 844, 858, 866, 883, 888–889, 901, 913, 921, 947, 953, 962, 964, 971, 975, 983, 985 |
| AT&T | 73 | 15 | 58 | 0 | 202, 205–206, 216, 218, 225, 228, 249, 266, 285, 298, 302, 350, 364, 366, 370, 375, 406, 417, 423, 429–430, 434, 443, 451, 462, 464, 471–472, 482, 499, 527, 530, 534, 537, 556–557, 560, 565, 584, 594, 607, 612, 635, 638, 640, 653, 660, 678, 680, 685, 689–690, 707, 724, 738, 754, 763, 775, 817, 835, 847, 856, 864, 869–870, 918, 929, 943, 952, 956, 991, 994 |
| Paetec Itel | 69 | 0 | 69 | 0 | 234, 236, 244, 247, 332–333, 346, 349, 352, 362, 404, 418–419, 425, 437, 439, 463, 465, 475, 489, 493, 514, 521, 528, 535, 541–542, 547, 569, 573, 602, 610, 616, 619, 644, 656, 664, 702, 715, 722, 726, 737, 746, 761, 783, 801, 804, 810, 815, 831, 838, 850, 859, 873, 879, 884, 886, 897, 903, 905, 914, 916, 927–928, 936, 957, 960, 966, 974 |
| Lumen | 59 | 0 | 59 | 0 | 210, 214–215, 253, 277, 287, 312, 323, 325, 328, 336, 343, 353, 390, 399, 426, 476, 479, 497, 507, 518–519, 538, 549, 577, 583, 625–626, 651, 679, 683, 688, 694–695, 708, 713, 730, 734, 742, 752–753, 770, 780, 785–786, 791, 795, 818, 827, 836, 840, 854, 872, 881, 926, 968, 989, 995–996 |
| Comcast | 35 | 0 | 0 | 35 | 281, 365, 369, 373–374, 378, 400, 435, 523, 558, 562, 587, 605, 609, 620, 629, 675, 686, 701, 772–773, 777, 779, 790, 806–807, 812, 842, 874–875, 885, 923–924, 987, 990 |
| Bandwidth.com | 34 | 0 | 0 | 34 | 208, 226, 230, 317, 436, 456, 458, 516, 532, 536, 553, 597, 613–614, 649, 667, 669, 671, 673, 705, 748, 757–758, 764–766, 797, 819, 841, 845, 896, 908, 945, 958 |
| Astound Broadband | 26 | 0 | 26 | 0 | 209, 269, 315–316, 361, 381, 428, 448, 491, 539, 546, 559, 572, 606, 621, 627, 630, 652, 717, 728, 731, 750, 776, 824, 867, 992 |
| Onvoy | 11 | 0 | 0 | 11 | 355, 427, 524, 590, 604, 661, 745, 787, 882, 887, 951 |
| Peerless Network | 8 | 0 | 0 | 8 | 327, 384, 452, 566, 666, 725, 739, 954 |
| Norfolk County Internet | 7 | 0 | 7 | 0 | 360, 415, 432, 543, 578, 637, 965 |
| COMMIO LLC | 3 | 0 | 0 | 3 | 200, 868, 967 |
| American Messaging | 1 | 1 | 0 | 0 | 387 |
| BayRing Communications | 1 | 0 | 1 | 0 | 816 |
| Emergency Networks | 1 | 1 | 0 | 0 | 898 |
| Fractel | 1 | 0 | 0 | 1 | 822 |
| IP Horizon | 1 | 0 | 0 | 1 | 421 |
| Mass Mobile | 1 | 0 | 1 | 0 | 781 |
| Tpx Communications | 1 | 0 | 1 | 0 | 851 |
| Ucom Paging | 1 | 1 | 0 | 0 | 212 |
| Voip Street | 1 | 0 | 0 | 1 | 978 |
Questions developers ask
- Where is area code 781?
- Area code 781 is in Massachusetts, in the United States: all 795 of its exchanges on record are there. From abroad it is dialled +1 781, then the seven-digit number.
- Is a 781 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 795 exchanges on record in 781, 135 (17%) were allocated as mobile, 547 (69%) as fixed line, 94 (12%) as VoIP and 19 (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 781?
- 21 carriers hold exchanges in 781 on record; the most: Verizon (367), T-Mobile (75) and AT&T (73). 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 781 phone number?
- In E.164 a 781 number matches ^\+1781[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 (781) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.