Where is area code 404?

Area code 404 is in Georgia, in the United States: all 800 of its exchanges on record are there. From abroad it is dialled +1 404, then the seven-digit number.

Is a 404 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 404, 373 (47%) were allocated as mobile, 362 (45%) as fixed line, 50 (6%) as VoIP and 15 (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 404?

22 carriers hold exchanges in 404 on record; the most: AT&T (399), T-Mobile (151) and Verizon (108). 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 404 phone number?

In E.164 a 404 number matches ^\+1404[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 (404) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.

404

Area code 404

Georgia, United States

National (404) 555-0123, E.164 +14045550123

How the 800 central office codes (exchanges) of area code 404 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 404 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: GA
Exchanges on record: 800
Carriers on record: 22

Exchanges of 404 by the line type they were allocated as

Mobile 373 (47%)
Fixed line 362 (45%)
VoIP 50 (6%)
No line type on record 15 (2%)
800 exchanges on record

Most exchanges: AT&T 399, T-Mobile 151, Verizon 108.

Check a number

Valid fixed line or mobile number in the United States.

country code

404

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	+14045550123
International	+1 404-555-0123
National	(404) 555-0123
RFC 3966	tel:+1-404-555-0123

Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)

The example is 404-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 404, by the line type it was allocated as

One cell per exchange: blocks 404 2xx to 404 9xx; in each block the row is the tens digit, the column the units digit.

Mobile 373
Fixed line 362
VoIP 50
No line type on record 15

Formats and patterns

E.164	+14045550123
International	+1 404-555-0123
National	(404) 555-0123
RFC 3966 (tel: URI)	tel:+1-404-555-0123

Any 404 number, in E.164

^\+1404[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 (373 on record)

^\+1404(?:2(?:0[0-258]|1[036-9]|2[679]|34|4[25-7]|5[89]|6[38]|7[1-8]|[89][0135])|3(?:0[47-9]|1[02-46-9]|2[346]|3[467]|4[25]|5[346-9]|6[089]|7[24-69]|8[046-8]|9[0-24-79])|4(?:0[1-689]|1[4-6]|2[1-46-9]|3[0-8]|4[14579]|5[0-7]|6[58]|73|8[1-58]|9[0-36])|5(?:0[239]|1[02-47-9]|2[08]|3[35689]|4[23578]|5[0-26-8]|6[135-79]|7[014689]|8[0357]|9[034679])|6(?:0[46]|1[0578]|2[013568]|3[027]|4[0-7]|5[05]|6[013478]|7[02-4]|8[039]|9[3-578])|7(?:0[1289]|1[036-8]|2[1-359]|3[1245]|4[02367]|5[049]|6[49]|7[0-256]|8[02-46-9]|9[0136-8])|8(?:0[13-57-9]|19|2[0-5]|3[1349]|4[09]|5[2457-9]|6[0-467]|71|8[3469]|9[59])|9(?:0[1-9]|1[568]|2[258]|3[1-46-8]|4[047]|5[1-35-7]|6[0467]|7[17]|8[013-57-9]|9[0-36-8]))\d{4}$

Fixed line exchanges (362 on record)

^\+1404(?:2(?:0[3469]|1[245]|2[0-5]|3[0-35-9]|4[013489]|5[0-35-7]|6[0-24-79]|7[09]|8[4689]|9[246-9])|3(?:0[0-35]|15|2[0-257-9]|3[0-358]|4[146-9]|5[0-25]|6[1-7]|7[01378]|8[1259]|9[38])|4(?:07|1[07-9]|2[05]|[35]9|4[0238]|6[0134679]|7[12457-9]|8[679]|9[457-9])|5(?:0[14-8]|1[56]|2[1-79]|3[0-24]|4[01469]|5[349]|6[0248]|7[2357]|8[124689]|9[128])|6(?:0[0-357-9]|1[2-469]|2[2479]|3[13-689]|4[89]|5[1-46-9]|6[29]|7[15-79]|8[124-8]|9[169])|7(?:0[3-7]|[19][2459]|2[0478]|3[0369]|4[1459]|5[1-35-8]|6[0-35-8]|7[348]|8[15])|8(?:0[26]|1[02-8]|2[6-9]|3[26-8]|4[1-8]|5[136]|6[59]|7[02-9]|8[01578]|9[02-478])|9(?:1[047]|2[0134679]|3[05]|4[23689]|54|6[1-3589]|7[04589]|8[26]|9[45]))\d{4}$

VoIP exchanges (50 on record)

^\+1404(?:2(?:07|28|54|8[27])|3(?:06|39|[48]3)|4(?:[08]0|1[23]|46|58|62|7[06])|5(?:00|37|95)|6(?:6[56]|78|9[02])|7(?:26|3[78]|48|7[79])|8(?:[05]0|3[05]|68|82|9[16])|9(?:00|1[239]|[39]9|4[15]|7[23]))\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 404, with the exchanges allocated to it (the three digits after the area code).

Carrier	Exchanges	Mobile	Fixed line	VoIP	Exchanges held
AT&T	399	90	309	0	201–204, 206, 209, 212–213, 215–216, 218–226, 229–245, 248–253, 255–258, 261–266, 268–270, 277, 279, 281, 284–286, 288–289, 292, 294, 296–299, 300, 302–303, 305, 307, 310, 312, 314–317, 320–322, 325, 327–332, 335, 338, 341, 344–353, 355, 358, 361–368, 370–378, 381–382, 385–386, 394–395, 398, 401–403, 405–408, 414, 417, 420, 425, 431–435, 440, 442–444, 459–461, 463–464, 466–467, 469, 471–472, 486, 489, 494–495, 497–499, 501–502, 504–508, 515–516, 521–527, 529–532, 534, 536, 538–539, 541, 544–546, 553, 559–560, 562, 568, 572–575, 577, 580–584, 586, 588–589, 598, 602–603, 605, 607–609, 612–614, 616, 619, 622, 624–627, 629–631, 633–636, 638–639, 648–649, 651–654, 656–661, 669, 671, 675–677, 679–681, 684–688, 691, 696–699, 702, 704–705, 707, 712–715, 718, 724–725, 727–728, 730–731, 733, 735, 739, 741, 744–745, 747, 749, 752–758, 760–763, 765–769, 771, 773–775, 778, 785, 790–792, 794, 797, 799, 802, 810, 812–818, 824–829, 837–839, 841–843, 845–848, 851, 853, 855–856, 861–863, 865, 869–870, 872–881, 885, 887–890, 892–894, 897–898, 906–907, 910, 914–915, 923–924, 926–927, 929–930, 942–943, 948–949, 954, 962, 968, 970, 979, 982–984, 986, 995
T-Mobile	151	151	0	0	200, 246–247, 259, 271, 319, 324, 337, 369, 379–380, 384, 388, 390–392, 396–397, 399, 409, 421–424, 426–429, 436–438, 441, 447, 449, 451–457, 465, 468, 481–484, 488, 490, 492–493, 496, 503, 509–510, 512–514, 518, 528, 542–543, 547, 551–552, 557, 563, 565–567, 569, 578–579, 587, 593, 597, 599, 604, 610, 618, 621, 637, 641–645, 647, 663–664, 667–668, 709, 716, 721, 723, 729, 732, 734, 740, 750, 759, 784, 786–787, 789, 793, 798, 808, 819–820, 822, 834, 840, 849, 857, 860, 867, 883–884, 886, 901–903, 908, 916, 918, 925, 931–934, 936–937, 940, 944, 951–953, 956–957, 964, 966, 980–981, 988, 990, 992–993, 996–997
Verizon	108	90	18	0	205, 210, 217, 227, 260, 267, 272–276, 290–291, 293, 295, 304, 308–309, 313, 323, 326, 354, 357, 360, 387, 416, 430, 439, 445, 450, 475, 478–479, 487, 491, 519–520, 548, 550, 556, 558, 561, 576, 585, 590–591, 594, 596, 601, 606, 615, 617, 620, 623, 632, 640, 655, 662, 670, 673, 682–683, 693–695, 710, 720, 736, 764, 772, 780, 782–783, 788, 795–796, 801, 803–805, 807, 809, 821, 823, 831, 836, 852, 858–859, 895, 904, 909, 922, 938, 946–947, 955, 960, 965, 967, 971, 974, 977, 985, 987, 989, 991, 998
Onvoy	23	0	0	23	207, 383, 462, 470, 476, 500, 537, 595, 665, 678, 726, 737–738, 777, 779, 800, 835, 868, 882, 900, 912, 973, 999
American Messaging	17	17	0	0	278, 280, 283, 318, 415, 570–571, 650, 742–743, 746, 776, 833, 864, 866, 871, 899
Lumen	15	0	15	0	301, 393, 410, 549, 592, 719, 751, 806, 920–921, 935, 963, 975, 978, 994
Paetec Itel	13	0	13	0	214, 333, 389, 419, 474, 477, 554, 564, 781, 832, 844, 917, 969
USA Mobility	11	11	0	0	336, 356, 359, 485, 628, 646, 672, 674, 701, 708, 722
Bandwidth.com	10	0	0	10	282, 446, 480, 666, 692, 850, 913, 919, 939, 945
Comcast	8	0	0	8	228, 254, 287, 343, 413, 748, 896, 941
Emergency Networks	8	8	0	0	208, 342, 404, 517, 533, 770, 854, 905
Exiant	5	0	0	5	306, 339, 412, 830, 972
Peerless Network	3	0	0	3	400, 458, 891
SouthernLINC Wireless	3	3	0	0	473, 535, 717
Brightlink Communications	2	2	0	0	334, 689
BroadRiver Communications	2	0	2	0	418, 961
Five9	2	0	2	0	703, 706
BEST PAGE	1	1	0	0	928
CoreTel	1	0	1	0	448
Hadlo Technologies	1	0	0	1	690
Leap Telecom	1	0	1	0	540
O1 Communications	1	0	1	0	600

Questions developers ask

Where is area code 404?: Area code 404 is in Georgia, in the United States: all 800 of its exchanges on record are there. From abroad it is dialled +1 404, then the seven-digit number.
Is a 404 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 404, 373 (47%) were allocated as mobile, 362 (45%) as fixed line, 50 (6%) as VoIP and 15 (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 404?: 22 carriers hold exchanges in 404 on record; the most: AT&T (399), T-Mobile (151) and Verizon (108). 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 404 phone number?: In E.164 a 404 number matches ^\+1404[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 (404) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.