305
Area code 305
Florida, United States
National (305) 555-0123, E.164 +13055550123
How the 798 central office codes (exchanges) of area code 305 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 305 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
- FL
- Exchanges on record
- 798
- Carriers on record
- 20
- Mobile 296 (37%)
- Fixed line 446 (56%)
- VoIP 42 (5%)
- No line type on record 14 (2%)
- 798 exchanges on record
Most exchanges: AT&T 473, T-Mobile 92, Verizon 52.
Check a number
Valid fixed line or mobile number in the United States.
+1
country code
305
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 | +13055550123 |
| International | +1 305-555-0123 |
| National | (305) 555-0123 |
| RFC 3966 | tel:+1-305-555-0123 |
Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)
The example is 305-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.
The exchange map
One cell per exchange: blocks 305 2xx to 305 9xx; in each block the row is the tens digit, the column the units digit.
- Mobile 296
- Fixed line 446
- VoIP 42
- No line type on record 14
- Not on record 2
Formats and patterns
| E.164 | +13055550123 |
|---|---|
| International | +1 305-555-0123 |
| National | (305) 555-0123 |
| RFC 3966 (tel: URI) | tel:+1-305-555-0123 |
Any 305 number, in E.164
^\+1305[2-9]\d{6}$+1, the area code, a central office code that does not start with 0 or 1, then four digits.
Mobile exchanges (296 on record)
^\+1305(?:2(?:0[12568]|1[02-9]|36|4[014]|68|7[267]|8[1-36-8]|9[017-9])|3(?:0[0-589]|1[02-4689]|2[1-37]|3[1-9]|4[02-6]|5[23]|6[068]|89|9[3-579])|4(?:0[179]|1[07]|2[679]|3[159]|49|5[078]|6[479]|7[23589]|8[1346]|9[014-8])|5(?:0[2459]|1[0689]|2[24578]|4[02-46]|6[1-3568]|7[08]|8[0246-9])|6(?:0[15-9]|1[036-9]|32|4[15]|5[6-9]|60|78|8[04]|99)|7(?:0[689]|1[0239]|2[014-79]|3[0-46-9]|4[267]|5[03]|6[13-6]|7[23568]|8[0-358]|9[0346-9])|8(?:0[1-467]|1[235]|3[347-9]|4[1-49]|5[05]|7[57-9]|8[016]|9[06-8])|9(?:0[02-6]|15|2[02-46-8]|3[049]|4[12]|5[145]|6[23578]|7[02357-9]|8[0346-9]|9[267]))\d{4}$Fixed line exchanges (446 on record)
^\+1305(?:2(?:0[07]|[25]\d|3[0-578]|4[235-9]|6[0-79]|7[013-589]|8[0459]|9[2-6])|3(?:07|2[04-689]|4[17-9]|5[014-9]|6[1-579]|7\d|8[0-8]|9[0268])|4(?:0[023568]|1[2568]|2[0-58]|3[02-46-8]|4[1-8]|5[1359]|6[0-368]|7[01467]|8[02579]|9[239])|5(?:0[0136-8]|1[2-57]|2[01369]|[39]\d|4[157-9]|5[0-46-9]|6[079]|7[1-79]|8[15])|6(?:0[034]|12|2\d|3[013-9]|4[02-46-9]|5[0-5]|6[1-9]|7[0-69]|8[1-357-9]|9[0-68])|7(?:0[245]|1[4-8]|2[238]|35|4[03-589]|5[124-9]|6[027-9]|7[0479]|8[479]|9[25])|8(?:0[0589]|1[06-9]|[26]\d|3[0256]|4[067]|5[1-46-9]|7[0-46]|8[2-57-9]|9[1-59])|9(?:0[7-9]|1[0347-9]|2[159]|3[1-35-8]|4[03-9]|5[2367]|6[0149]|7[14]|8[12]|9[013-59]))\d{4}$VoIP exchanges (42 on record)
^\+1305(?:2(?:0[349]|39)|3(?:06|1[57]|30|91)|4(?:04|1[349]|40|5[246]|65|88)|564|6(?:02|1[45]|[79]7|86)|7(?:0[137]|[479]1|86)|8(?:14|31|4[58])|9(?:01|1[26]|85|98))\d{4}$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 305, with the exchanges allocated to it (the three digits after the area code).
| Carrier | Exchanges | Mobile | Fixed line | VoIP | Exchanges held |
|---|---|---|---|---|---|
| AT&T | 473 | 92 | 379 | 2 | 200, 202, 205–207, 213, 215, 220–235, 237–238, 242–243, 245–267, 269–271, 273–275, 278–279, 281–285, 289, 292–299, 301–302, 304, 308, 310, 318–319, 322–326, 329, 331–333, 335–336, 338, 341–343, 347–350, 354–355, 358, 361–362, 364–365, 367, 369–383, 385–388, 392–395, 400, 406–409, 412, 415–416, 418, 420–421, 424, 428, 430–431, 433–434, 436–439, 441–448, 450–451, 453, 458–463, 466, 468–471, 474, 476–477, 480, 482, 484–485, 487, 492–493, 495–496, 498–499, 500, 505, 509–510, 512–515, 517, 520, 523, 526, 529–536, 538–539, 541–542, 545–554, 556–560, 562, 567, 569–573, 575–577, 579, 582, 585–588, 590–599, 603–604, 606–608, 613, 620–640, 642–644, 646, 648–655, 661–674, 676, 679–682, 685, 687–696, 698–699, 705, 709, 712, 715–718, 733, 740–741, 743–745, 751–759, 762, 769–770, 773–775, 778, 781, 787, 789–790, 792–795, 798–799, 805, 808–810, 812–813, 815–829, 835–836, 846, 850, 852–854, 856–861, 863–874, 876–878, 882–885, 887–889, 891–893, 895, 898–899, 903–906, 913–916, 918–919, 921, 929, 931–938, 940, 943–945, 947–949, 951–953, 956–957, 960–961, 964–965, 969, 971–972, 974, 979, 981–982, 987, 989, 991, 993–995, 999 |
| T-Mobile | 92 | 92 | 0 | 0 | 216, 218–219, 244, 290, 300, 303, 305, 316, 321, 337, 339, 345, 360, 399, 417, 427, 429, 457, 464, 467, 479, 481, 490–491, 494, 497, 502, 504, 519, 522, 525, 527–528, 540, 565, 589, 609–610, 645, 684, 713, 720–721, 724–726, 731, 742, 746–747, 761, 764, 766, 772, 776, 780, 783, 785, 788, 796–797, 801, 803–804, 833–834, 842, 879, 890, 896–897, 900, 902, 922–924, 926–928, 930, 939, 942, 954, 963, 967, 970, 975, 984, 986, 988, 992 |
| Verizon | 52 | 15 | 37 | 0 | 240, 307, 328, 340, 351, 356–357, 359, 384, 389–390, 396–397, 401–402, 422–423, 425, 489, 506–508, 521, 561, 563, 574, 619, 647, 675, 702, 704, 710, 714, 723, 735, 763, 768, 807, 832, 847, 849, 851, 894, 907–910, 925, 946, 962, 968, 978 |
| USA Mobility | 42 | 42 | 0 | 0 | 208, 212, 272, 276–277, 287–288, 291, 312–314, 352–353, 366, 368, 483, 543–544, 601, 641, 729–730, 732, 734, 736–738, 750, 806, 837–839, 841, 843–844, 855, 880–881, 886, 955, 996–997 |
| ABC Paging | 38 | 38 | 0 | 0 | 201, 210, 214, 217, 236, 268, 309, 327, 344, 410, 426, 435, 472–473, 475, 478, 486, 516, 524, 566, 568, 578, 580, 584, 605, 617–618, 706, 708, 727, 739, 782, 802, 875, 920, 941, 973, 977 |
| Paetec Itel | 17 | 0 | 17 | 0 | 280, 398, 403, 405, 455, 503, 581, 683, 722, 728, 749, 777, 779, 784, 800, 830, 917 |
| Bandwidth.com | 15 | 0 | 0 | 15 | 203, 306, 317, 414, 452, 615, 697, 707, 771, 791, 814, 901, 912, 985, 998 |
| Onvoy | 14 | 0 | 0 | 14 | 315, 391, 404, 413, 419, 488, 564, 677, 686, 701, 703, 831, 845, 848 |
| American Messaging | 12 | 12 | 0 | 0 | 241, 286, 346, 616, 656–660, 678, 719, 983 |
| Lumen | 8 | 0 | 8 | 0 | 363, 432, 501, 537, 600, 748, 760, 767 |
| Emergency Networks | 5 | 5 | 0 | 0 | 334, 449, 518, 765, 980 |
| Comcast | 4 | 0 | 0 | 4 | 204, 440, 454, 456 |
| Peerless Network | 4 | 0 | 0 | 4 | 209, 330, 602, 614 |
| Livewire Telecom | 2 | 0 | 2 | 0 | 840, 862 |
| Barr Tell Usa | 1 | 0 | 1 | 0 | 990 |
| Engage Communications | 1 | 0 | 1 | 0 | 320 |
| Fractel | 1 | 0 | 0 | 1 | 465 |
| Hadlo Technologies | 1 | 0 | 0 | 1 | 786 |
| Optical Telecommunications | 1 | 0 | 1 | 0 | 612 |
| Smartedgenet LLC | 1 | 0 | 0 | 1 | 239 |
Questions developers ask
- Where is area code 305?
- Area code 305 is in Florida, in the United States: all 798 of its exchanges on record are there. From abroad it is dialled +1 305, then the seven-digit number.
- Is a 305 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 798 exchanges on record in 305, 296 (37%) were allocated as mobile, 446 (56%) as fixed line, 42 (5%) as VoIP and 14 (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 305?
- 20 carriers hold exchanges in 305 on record; the most: AT&T (473), T-Mobile (92) and Verizon (52). 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 305 phone number?
- In E.164 a 305 number matches ^\+1305[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 (305) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.