734
Area code 734
Michigan, United States
National (734) 555-0123, E.164 +17345550123
How the 730 central office codes (exchanges) of area code 734 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 734 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
- MI
- Exchanges on record
- 730
- Carriers on record
- 27
- Mobile 206 (28%)
- Fixed line 391 (54%)
- VoIP 104 (14%)
- No line type on record 29 (4%)
- 730 exchanges on record
Most exchanges: AT&T 241, Verizon 124, T-Mobile 69.
Check a number
Valid fixed line or mobile number in the United States.
+1
country code
734
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 | +17345550123 |
| International | +1 734-555-0123 |
| National | (734) 555-0123 |
| RFC 3966 | tel:+1-734-555-0123 |
Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)
The example is 734-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.
The exchange map
One cell per exchange: blocks 734 2xx to 734 9xx; in each block the row is the tens digit, the column the units digit.
- Mobile 206
- Fixed line 391
- VoIP 104
- No line type on record 29
- Not on record 70
Formats and patterns
| E.164 | +17345550123 |
|---|---|
| International | +1 734-555-0123 |
| National | (734) 555-0123 |
| RFC 3966 (tel: URI) | tel:+1-734-555-0123 |
Any 734 number, in E.164
^\+1734[2-9]\d{6}$+1, the area code, a central office code that does not start with 0 or 1, then four digits.
Mobile exchanges (206 on record)
^\+1734(?:2(?:0[2489]|1[68]|2[36-8]|3[13]|49|5[05]|6[0237]|7[1346-8]|80|9[0-2467])|3(?:0[135689]|12|2[03]|3[09]|4[167]|5[1358]|6[0368]|7[137]|8[013]|95)|4(?:06|1[07]|3[15]|44|50|6[05]|7[3468]|9[167])|5(?:0[24579]|[17][56]|36|4[568]|5[0248]|6[046]|8[134]|9[467])|6(?:0[2489]|1[0237]|2[04-6]|3[4-7]|4[4-69]|5[1278]|6[04]|7[03489]|8[02]|9[134])|7(?:0[69]|1[6-8]|23|3[01359]|4[08]|5[14-6]|6[57]|7[0-35-8]|8[78]|9[078])|8(?:0[27]|1[27-9]|29|3[347]|4[256]|52|6[06]|7[56]|8[35]|9[01369])|9(?:0[457]|[124]5|34|68|7[29]))\d{4}$Fixed line exchanges (391 on record)
^\+1734(?:2(?:0[5-7]|1[3-57]|2[0259]|3[0246-9]|4[0-7]|5[246-9]|6[14-689]|7[29]|8[1-9]|9[3589])|3(?:0[24]|1[0479]|2[1246-9]|3[2-57]|4[2-589]|5[0247]|6[2457]|7[024-689]|8[24-9]|9[0-46-9])|4(?:0[1-578]|1[3-689]|2\d|3[2-47-9]|4[0-35-9]|5[1-9]|6[1246-9]|7[01579]|8[0-79]|9[3-58])|5(?:0[1368]|1[0238]|2\d|3[0-589]|4[2-479]|5[13679]|6[157]|7[1-48]|8[25-8]|9[1-35])|6(?:0[156]|1[59]|2[1-37-9]|3[02389]|4[127]|5[4-69]|6[1-35689]|7[125-7]|8[15-79]|9[2579])|7(?:08|1[2-49]|2[0-26-9]|3[26-8]|4[1-4679]|5[237-9]|6[1-49]|79|8[0-69]|9[2-69])|8(?:0[35]|2[36-8]|39|4[0347-9]|5[03-8]|6[249]|7[2389]|8[178]|97)|9(?:02|1[37]|2[128]|3[069]|4[1-467]|5[3-7]|69|7[0135]|8[13-5]|9[14-8]))\d{4}$VoIP exchanges (104 on record)
^\+1734(?:2(?:[05][13]|1[029]|2[14]|35|7[05])|3(?:07|1[568]|25|3[168]|40|5[69]|6[19])|4(?:0[09]|[17]2|3[06]|63|88|9[29])|5(?:1[49]|37|4[01]|6[238]|7[079]|8[09]|9[089])|6(?:0[037]|4[38]|53|67|8[348])|7(?:0[247]|1[05]|2[45]|6[68]|74)|8(?:0[08]|2[0-2]|3[28]|6[358]|7[47]|8[0249]|9[25])|9(?:2[679]|3[1-37]|6[167]|77|8[27]|9[29]))\d{4}$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 734, with the exchanges allocated to it (the three digits after the area code).
| Carrier | Exchanges | Mobile | Fixed line | VoIP | Exchanges held |
|---|---|---|---|---|---|
| AT&T | 241 | 42 | 198 | 1 | 206–207, 213–214, 218, 222–223, 228–229, 232–233, 240–244, 246–247, 250, 254, 256–258, 261, 263, 266, 274, 276–277, 281–285, 287, 289, 302, 315, 317, 324, 326–327, 332, 334–335, 350–351, 353–355, 358, 362, 365, 367, 374–375, 379, 384, 386, 391–392, 394, 396–399, 406, 414, 416, 420–422, 424–428, 432–434, 439, 449, 451, 453–455, 457–459, 461–462, 464–467, 475, 477, 479–487, 495, 502, 506, 508, 510, 513, 516, 522–525, 528, 539, 542, 544–548, 551, 565, 572, 582–583, 591, 593, 595, 601, 604, 612–613, 615, 617, 619–620, 622–623, 630, 632, 635, 641, 647, 654–655, 662–663, 665–666, 668–669, 671, 675–677, 691–693, 695, 697, 699, 712, 716, 721–722, 727–731, 733, 737–738, 741, 747, 753, 757, 761–765, 767, 769, 771, 775–776, 778–783, 788–789, 792, 802–803, 805, 827, 834, 840, 844, 849, 853, 855, 857–858, 878–879, 887, 913, 921, 930, 936, 941–942, 946–947, 953–955, 957, 969–971, 973, 975, 981, 983–984, 994–998 |
| Verizon | 124 | 71 | 53 | 0 | 202, 204–205, 209, 249, 255, 264–265, 273, 280, 286, 288, 293–294, 303–304, 308–309, 312, 329, 339, 345, 347, 352, 357, 366, 378, 381, 395, 413, 417, 419, 423, 431, 435, 445, 447–448, 452, 456, 460, 468–469, 474, 476, 478, 491, 496, 505, 512, 515, 518, 521, 530–531, 535–536, 543, 552, 554, 558, 575, 585, 592, 594, 597, 608, 610, 621, 625–629, 634, 645–646, 649, 660–661, 664, 672, 679, 685, 694, 706, 718, 723, 735, 739–740, 742–744, 748–749, 751, 755–756, 758, 770, 784, 787, 790, 807, 812, 823, 829, 839, 842, 866, 869, 875–876, 890, 893, 904, 917, 922, 928, 939, 979, 985, 991 |
| T-Mobile | 69 | 69 | 0 | 0 | 216, 231, 260, 262, 271, 278, 291–292, 301, 306, 320, 323, 330, 341, 346, 360, 363, 368, 371, 373, 377, 383, 410, 444, 450, 497, 507, 550, 560, 564, 576, 581, 596, 609, 624, 636–637, 644, 652, 657–658, 673–674, 678, 680, 709, 717, 754, 772–773, 777, 818–819, 833, 837, 845–846, 883, 885, 891, 896, 899, 905, 915, 925, 934, 945, 968, 972 |
| Lumen | 45 | 0 | 43 | 2 | 217, 221, 238–239, 259, 268, 272, 299, 322, 328, 337, 343–344, 348, 364, 388, 393, 418, 437, 443, 446, 471, 493–494, 526, 532, 556–557, 586, 606, 642, 681, 702, 719–720, 726, 732, 736, 752, 785–786, 843, 862, 864, 956 |
| Onvoy | 42 | 0 | 0 | 42 | 201, 212, 219, 224, 251, 307, 336, 361, 400, 409, 463, 472, 488, 514, 537, 540, 563, 568, 570, 577, 579, 590, 598, 600, 603, 607, 648, 688, 704, 707, 715, 724, 774, 800, 821–822, 838, 863, 865, 868, 889, 892 |
| Paetec Itel | 42 | 0 | 42 | 0 | 215, 220, 230, 234, 236–237, 252, 333, 349, 382, 385, 389–390, 402–405, 407–408, 415, 440–442, 470, 489, 559, 561, 567, 639, 656, 659, 689, 713–714, 759, 793–796, 799, 826, 828 |
| Telnet Worldwide | 31 | 0 | 31 | 0 | 298, 310, 314, 319, 321, 342, 370, 372, 376, 387, 401, 438, 501, 503, 520, 527, 533–534, 538, 549, 553, 571, 573–574, 605, 633, 638, 687, 873, 902, 943 |
| Comcast | 20 | 0 | 0 | 20 | 253, 270, 316, 318, 325, 331, 338, 340, 359, 369, 562, 580, 667, 725, 882, 895, 929, 961, 977, 992 |
| American Messaging | 14 | 14 | 0 | 0 | 208, 267, 296–297, 305, 504, 566, 651, 670, 797–798, 817, 852, 860 |
| Frontier | 13 | 0 | 13 | 0 | 269, 295, 429, 498, 529, 587, 847–848, 850, 854, 856, 888, 944 |
| Ton80 Communications | 12 | 0 | 0 | 12 | 643, 653, 683–684, 768, 832, 874, 932, 937, 967, 982, 987 |
| Bandwidth.com | 10 | 0 | 0 | 10 | 203, 210, 430, 492, 519, 589, 710, 926–927, 931 |
| Fractel | 7 | 0 | 0 | 7 | 356, 499, 599, 766, 877, 933, 966 |
| Peerless Network | 6 | 0 | 0 | 6 | 235, 275, 436, 808, 820, 999 |
| USA Mobility | 6 | 6 | 0 | 0 | 226–227, 380, 473, 509, 907 |
| 123.Net Inc | 3 | 0 | 3 | 0 | 245, 588, 897 |
| Emergency Networks | 3 | 3 | 0 | 0 | 290, 584, 682 |
| Deerfield Farmers' Telephone Company | 2 | 0 | 2 | 0 | 279, 746 |
| Spectrum | 2 | 0 | 2 | 0 | 708, 872 |
| Wow! Internet | 2 | 0 | 2 | 0 | 225, 578 |
| ACD Telecom | 1 | 0 | 1 | 0 | 686 |
| Airespring | 1 | 0 | 0 | 1 | 884 |
| Brightlink Communications | 1 | 0 | 0 | 1 | 541 |
| Dish Wireless | 1 | 1 | 0 | 0 | 602 |
| Grid 4 Communications | 1 | 0 | 1 | 0 | 881 |
| Skyetel | 1 | 0 | 0 | 1 | 880 |
| Vonage | 1 | 0 | 0 | 1 | 412 |
Questions developers ask
- Where is area code 734?
- Area code 734 is in Michigan, in the United States: all 730 of its exchanges on record are there. From abroad it is dialled +1 734, then the seven-digit number.
- Is a 734 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 730 exchanges on record in 734, 206 (28%) were allocated as mobile, 391 (54%) as fixed line, 104 (14%) as VoIP and 29 (4%) 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 734?
- 27 carriers hold exchanges in 734 on record; the most: AT&T (241), Verizon (124) and T-Mobile (69). 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 734 phone number?
- In E.164 a 734 number matches ^\+1734[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 (734) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.