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501

Area code 501

Arkansas, United States

National (501) 555-0123, E.164 +15015550123

How the 652 central office codes (exchanges) of area code 501 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 501 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
AR
Exchanges on record
652
Carriers on record
35
Exchanges of 501 by the line type they were allocated as
  • Mobile 213 (33%)
  • Fixed line 328 (50%)
  • VoIP 94 (14%)
  • No line type on record 17 (3%)
  • 652 exchanges on record

Most exchanges: AT&T 261, Lumen 82, Verizon 56.

Check a number

Valid fixed line or mobile number in the United States.

+1
country code
501
area code
5550123
subscriber number
CountryUnited States numbering plan
Line typeFixed line or mobile
Carrier the block was allocated toNo carrier on record for this prefix
E.164+15015550123
International+1 501-555-0123
National(501) 555-0123
RFC 3966tel:+1-501-555-0123

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

The example is 501-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 501, by the line type it was allocated as

One cell per exchange: blocks 501 2xx to 501 9xx; in each block the row is the tens digit, the column the units digit.

501 2xx501 3xx501 4xx501 5xx501 6xx501 7xx501 8xx501 9xx
  • Mobile 213
  • Fixed line 328
  • VoIP 94
  • No line type on record 17
  • Not on record 148

Formats and patterns

E.164+15015550123
International+1 501-555-0123
National(501) 555-0123
RFC 3966 (tel: URI)tel:+1-501-555-0123

Any 501 number, in E.164

^\+1501[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 (213 on record)

^\+1501(?:2(?:0[01349]|1[356]|3[016-9]|4[0357-9]|5[34689]|6[04679]|7[0-367]|8[2-689]|9[03478])|3(?:0[4689]|1[04]|2[26]|3[49]|4[36-9]|5[0-26]|6[06]|8[158]|9[0458])|4(?:0[3-59]|1[023568]|2[024-68]|3[01459]|4[2-59]|54|6[159]|7[1-38]|[89][89])|5(?:0[27]|1[024679]|2[489]|3[02689]|4[013579]|5[149]|63|7[2369]|8[04]|9[016])|6(?:0[67]|1[237]|26|4[14-8]|5[0258]|72|8[01]|9[01379])|7(?:03|1[02]|3[23]|4[49]|57|6[356]|7[239]|86)|8(?:0[248]|[15]8|2[78]|3[178]|70|91)|9(?:0[289]|1[2-4]|[26]0|4[04]|5[12]|93))\d{4}$

Fixed line exchanges (328 on record)

^\+1501(?:2(?:0[25-8]|1[0247-9]|2\d|3[2-5]|4[124]|5[0-257]|6[1258]|7[589]|8[017]|9[69])|3(?:0[1-35]|1[25-9]|2[013-57-9]|3[0-35-8]|4[0245]|5[457-9]|6[1-578]|7\d|8[046]|9[12679])|4(?:0[026-8]|17|2[1379]|3[2368]|4[078]|5[035-8]|6[37]|7[057]|8[0-35-7]|9[02])|5(?:0[4589]|1[35]|2[035-7]|3[347]|4[2468]|5[0236-8]|6[25689]|7[04]|8[1357-9]|9[2-4])|6(?:0[2-59]|1[458]|2[02-578]|3\d|5[134]|6[0-469]|7[1369]|8[236-8]|94)|7(?:0[178]|16|2[1-9]|3[048]|4[2358]|5[389]|6[0247]|7[168]|81|9[1468])|8(?:0[13]|1[23579]|2[135]|3[03-5]|4[02-479]|5[0-29]|6[0258]|8[1247-9]|9[37])|9(?:0[5-7]|1[568]|22|3[29]|4[135]|5[3-6]|61|7[1578]|8[2-57-9]|9[12]))\d{4}$

VoIP exchanges (94 on record)

^\+1501(?:2(?:46|63|74|9[125])|3(?:0[07]|[159]3|69|8[2379])|4(?:01|1[49]|37|4[16]|5[129]|6[02468]|7[46]|84|9[13-7])|5(?:0[0136]|18|2[12]|3[15]|6[0147]|7[1578]|8[26]|9[57-9])|6(?:0[018]|10|2[19]|4[023]|6[57])|7(?:14|37|4[67]|55|7[07]|82|9[09])|8(?:00|32|6[467])|9(?:0[04]|10|4[26]|99))\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 501, with the exchanges allocated to it (the three digits after the area code).

CarrierExchangesMobileFixed lineVoIPExchanges held
AT&T261861732200–202, 206–208, 210, 212–215, 217–219, 221, 223–225, 227–228, 230–231, 235, 244, 249–251, 253–254, 257–259, 261–262, 265, 268–269, 271, 276, 278–286, 288, 294, 296, 298, 301–303, 305–306, 312, 314–319, 321, 324, 327–329, 332, 336–337, 339–340, 342, 352, 354, 361–363, 365, 368, 370–380, 385, 394, 396, 398–399, 407, 410, 412–413, 416, 418, 424–425, 427, 431, 433, 445, 450, 454–455, 467, 470–472, 477–478, 490, 492, 499, 504–505, 513, 515, 520, 525, 538, 541, 545, 548–549, 551, 554, 557–558, 562–563, 565–566, 568–570, 573, 576, 579, 590, 594, 596, 602–603, 609, 612, 614–615, 618, 620, 622–627, 644–648, 650–653, 658, 660–661, 663–664, 666, 669, 671–672, 676, 681, 683, 686, 688, 691, 697, 701, 712, 716, 721, 727, 730, 732–733, 744, 747, 749, 753, 758, 760, 764–767, 771–773, 776, 778, 786, 791, 794, 803, 808, 812–813, 815, 819, 821, 825, 827, 833–835, 837–838, 840, 844, 847, 851, 860, 862, 864, 868, 882, 887–888, 893, 897, 915–916, 918, 920, 922, 939–940, 944–945, 953–956, 961, 971, 977, 984, 989, 991
Lumen820811205, 229, 232, 241–242, 255, 275, 299, 323, 325, 338, 344–345, 355, 357–358, 386, 397, 408, 417, 419, 421, 423, 429, 436, 438, 456, 458, 463, 481–483, 485–487, 508–509, 533–534, 542, 544, 546, 550, 553, 574, 588, 593, 604–605, 630–639, 694, 724–726, 729, 742–743, 762, 781, 798, 801, 817, 823, 842–843, 859, 881, 941, 982–983, 985, 987–988
Verizon565420203, 209, 238–239, 266, 270, 289, 297, 304, 322, 326, 350–351, 366, 381, 388, 422, 426, 428, 430, 434, 439, 514, 516–517, 519, 528–530, 532, 536, 539, 547, 559, 580, 584, 607, 617, 641, 680, 690, 699, 707–708, 757, 802, 804, 831, 858, 891, 902, 912–914, 951, 993
Windstream540540220, 222, 234, 252, 287, 320, 330–331, 333, 335, 364, 367, 391–392, 402, 432, 440, 447–448, 457, 475, 523, 526, 537, 552, 556, 581, 585, 589, 628, 654, 662, 673, 679, 682, 687, 722, 728, 734, 748, 759, 796, 849–850, 852, 889, 905–907, 932, 943, 975, 978, 992
T-Mobile484800204, 216, 236–237, 240, 243, 247–248, 256, 260, 264, 267, 272–273, 277, 290, 293, 308, 310, 346, 348–349, 403, 409, 415, 420, 435, 442–444, 449, 473, 489, 502, 507, 510, 591, 606, 613, 655, 693, 703, 779, 818, 908–909, 952, 960
Onvoy390039292, 295, 300, 307, 382, 460, 462, 464, 466, 468, 474, 476, 484, 493–497, 500–501, 506, 521–522, 560, 571, 578, 582, 586, 600–601, 610, 642, 770, 777, 790, 800, 867, 904, 910
Bandwidth.com110011291, 383, 387, 389, 393, 437, 491, 503, 518, 531, 575
American Messaging101000245, 334, 360, 390, 395, 405, 465, 543, 763, 828
Emergency Networks101000309, 343, 347, 461, 469, 488, 512, 540, 710, 870
Fractel7007567, 577, 599, 667, 755, 799, 946
Ton80 Communications7007535, 640, 746, 782, 832, 866, 942
Comcast6006246, 313, 353, 414, 446, 737
IP Horizon6006451, 564, 595, 597–598, 608
Arkansas Telephone Company4040592, 723, 745, 884
Dish Wireless3300498, 524, 572
E. Ritter Communications3030359, 453, 587
Paetec Itel3030400, 527, 830
Access2Go2002452, 459
Brightlink Communications2101404, 441
Central Arkansas Telephone Cooperative2020384, 865
TELNYX2002274, 621
Terra Nova Telecom2002900, 999
Twilio International2002643, 714
Vonage2002263, 401
Ahoi1010738
Airus Inc1010406
COMMIO LLC1001665
CSC Wireless LLC1100356
Callworks Corporation1001561
Exiant1001369
HD Carrier1001629
Nuso1010480
Optimum1010226
Wavenation1010583
Yell County Telephone Company1010233

Questions developers ask

Where is area code 501?
Area code 501 is in Arkansas, in the United States: all 652 of its exchanges on record are there. From abroad it is dialled +1 501, then the seven-digit number.
Is a 501 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 652 exchanges on record in 501, 213 (33%) were allocated as mobile, 328 (50%) as fixed line, 94 (14%) as VoIP and 17 (3%) 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 501?
35 carriers hold exchanges in 501 on record; the most: AT&T (261), Lumen (82) and Verizon (56). 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 501 phone number?
In E.164 a 501 number matches ^\+1501[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 (501) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.