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520 Area Code

Introduction To Area Code 520

520 is a geographic area code for Tucson, Arizona and its suburbs.The 520 area code was created on October 7, 1997, as a split from area code 602. It originally covered the southeastern corner of the state, from the New Mexico border to the town of Marana, just north of Tucson.

In 2001,520 was extended to cover most of the Tucson metropolitan area, including the city of Oro Valley.

Today, 520 is the only area code serving Tucson and its suburbs.

Regions That Use 520 As Area Code

There are many different area codes in use throughout the United States, and each one has its own unique set of quirks and characteristics. One of the most interesting area codes is 520, which is used in a number of different regions throughout the country.520 is a unique area code in a few ways. Firstly, it is one of the few area codes that is split between multiple states. Specifically, 520 is used in Arizona and New Mexico. This can lead to some confusion, as people in different states may not be familiar with the other state's 520 area code.

Additionally, 520 is one of the few area codes that is not assigned to a specific city. Instead, it is used in a number of different rural areas. This can be both good and bad, as it means that there is more flexibility in terms of where you can use the 520 area code, but it also means that there is less certainty about what specific area you are calling.

Overall, the 520 area code is a fascinating example of how different regions in the United States use different area codes to reflect their unique character. If you are curious about the different area codes in use throughout the United States, be sure to check out the 520 area code and see how it is used in different parts of the country!

Time Zones With Area Code 520

520 area code time zonesWhen looking at the time zones in the United States, it's important to know the area code for Arizona. The 520 area code is for the state of Arizona. This code is broken up into four time zones.

The 520 area code time zones are:

Mountain Standard Time (MST)

Pacific Standard Time (PST)

Arizona Standard Time (AST)

Hawaii-Aleutian Standard Time (HST)

Each of these zones has a different start and end time. Knowing which time zone you're in can help when scheduling appointments or planning a trip.

Mountain Standard Time is the first time zone in the 520 area code. It runs from UTC-7 to UTC-6. This zone is mostly in Arizona, with a small part in Utah.

Pacific Standard Time is the second time zone in the 520 area code. It runs from UTC-8 to UTC-7. This zone is mostly in California, with a small part in Arizona.

Arizona Standard Time is the third time zone in the 520 area code. It runs from UTC-7 to UTC-6. This zone is in Arizona, and is the same as Mountain Standard Time.

Hawaii-Aleutian Standard Time is the fourth time zone in the 520 area code. It runs from UTC-10 to UTC-9. This zone is in Hawaii and Alaska, and is the same as Pacific Standard Time.

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Cities Served by 520 Are Code

  • Arkansas, AR
  • Kentucky, KY
  • Oregon, OR
  • Louisiana, LA
  • New Mexico, NM
  • Minnesota, MN
  • Massachusetts, MA
  • Washington, WA
  • California, CA
  • Texas, TX
  • Ohio, OH
  • Iowa, IA
  • New York, NY
  • Michigan, MI
  • New York, NY

Details of Prefixes in 520 Area Code

Prefix
Current Location
Carrier
Type
  • (520) 200
    Tucson
    Electric Lightwave, Llc Dba Integra Telecom - Az
    Landline
  • (520) 201
    Tucson
    Electric Lightwave, Llc Dba Integra Telecom - Az
    Landline
  • (520) 202
    Tucson
    Level 3 Telecom Of Arizona, Llc - Az
    Landline
  • (520) 203
    Tucson
    Xo Arizona, Inc.
    Landline
  • (520) 204
    Tucson
    Mcleodusa Telecommunications Services, Inc.- Az
    Landline
  • (520) 205
    Tucson
    Qwest Corporation
    Landline
  • (520) 206
    Tucson
    Qwest Corporation
    Landline
  • (520) 207
    Tucson
    Cox Arizona Telcom, Inc. - Az
    Landline
  • (520) 208
    Tempe
    Global Crossing Local Services, Inc.-az
    Landline
  • (520) 209
    Tucson
    Qwest Corporation
    Landline
  • (520) 210
    Tucson
    Onvoy, Llc - Az
    Landline
  • (520) 212
    Benson
    Midvale Telephone Exchange, Inc.
    Landline
  • (520) 213
    Tempe
    T-mobile Usa, Inc.
    Mobile
  • (520) 215
    Chandler
    Gila River Telecomm, Inc.
    Landline
  • (520) 216
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 218
    Tucson
    Qwest Corporation
    Landline
  • (520) 219
    Tucson
    Qwest Corporation
    Landline
  • (520) 220
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 221
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 222
    Tucson
    Qwest Corporation
    Landline
  • (520) 223
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 224
    Tucson
    Electric Lightwave, Llc Dba Integra Telecom - Az
    Landline
  • (520) 225
    Tucson
    Qwest Corporation
    Landline
  • (520) 226
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 227
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 228
    Tucson
    Qwest Corporation
    Landline
  • (520) 229
    Tucson
    Qwest Corporation
    Landline
  • (520) 230
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 232
    Tucson
    Qwest Corporation
    Landline
  • (520) 233
    Phoenix
    At&t Local
    Landline
  • (520) 234
    Tucson
    At&t Local
    Landline
  • (520) 235
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 236
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 237
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 238
    Tempe
    T-mobile Usa, Inc.
    Mobile
  • (520) 239
    Tucson
    At&t Local
    Landline
  • (520) 240
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 241
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 243
    Tucson
    Qwest Corporation
    Landline
  • (520) 244
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 245
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 247
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 248
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 249
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 250
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 251
    Phoenix
    Sprint Spectrum L.p.
    Mobile
  • (520) 252
    Phoenix
    Sprint Spectrum L.p.
    Mobile
  • (520) 253
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 254
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 255
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 256
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 258
    Tucson
    Qwest Corporation
    Landline
  • (520) 259
    Tucson
    North County Communications Corp.
    Landline
  • (520) 260
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 261
    Tucson
    Bandwidth.com Clec, Llc - Az
    Landline
  • (520) 262
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 264
    Tucson
    At&t Local
    Landline
  • (520) 265
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 266
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 268
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 269
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 270
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 271
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 272
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 275
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 277
    Phoenix
    Onvoy, Llc - Az
    Landline
  • (520) 279
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 280
    Phoenix
    Sprint Spectrum L.p.
    Mobile
  • (520) 281
    Nogales
    Qwest Corporation
    Landline
  • (520) 282
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 284
    Tucson
    Xo Arizona, Inc.
    Landline
  • (520) 285
    Nogales
    Qwest Corporation
    Landline
  • (520) 286
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 287
    Nogales
    Qwest Corporation
    Landline
  • (520) 288
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 289
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 290
    Tucson
    Qwest Corporation
    Landline
  • (520) 291
    Tucson
    Qwest Corporation
    Landline
  • (520) 292
    Tucson
    Qwest Corporation
    Landline
  • (520) 293
    Tucson
    Qwest Corporation
    Landline
  • (520) 294
    Tucson
    Qwest Corporation
    Landline
  • (520) 295
    Tucson
    Qwest Corporation
    Landline
  • (520) 296
    Tucson
    Qwest Corporation
    Landline
  • (520) 297
    Tucson
    Qwest Corporation
    Landline
  • (520) 298
    Tucson
    Qwest Corporation
    Landline
  • (520) 299
    Tucson
    Qwest Corporation
    Landline
  • (520) 300
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 301
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 302
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 303
    Tucson
    Ymax Communications Corp. - Az
    Landline
  • (520) 304
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 305
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 306
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 307
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 308
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 309
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 310
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 312
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 313
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 314
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 315
    Chandler
    Gila River Telecomm, Inc.
    Landline
  • (520) 316
    Qwest Corporation
    Landline
  • (520) 318
    Tucson
    Qwest Corporation
    Landline
  • (520) 319
    Tucson
    Qwest Corporation
    Landline
  • (520) 320
    Tucson
    Qwest Corporation
    Landline
  • (520) 321
    Tucson
    Qwest Corporation
    Landline
  • (520) 322
    Tucson
    Qwest Corporation
    Landline
  • (520) 323
    Tucson
    Qwest Corporation
    Landline
  • (520) 324
    Tucson
    Qwest Corporation
    Landline
  • (520) 325
    Tucson
    Qwest Corporation
    Landline
  • (520) 326
    Tucson
    Qwest Corporation
    Landline
  • (520) 327
    Tucson
    Qwest Corporation
    Landline
  • (520) 328
    Tucson
    Qwest Corporation
    Landline
  • (520) 329
    Tucson
    Teleport Communications America, Llc - Az
    Landline
  • (520) 331
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 332
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 333
    Tucson
    Xo Arizona, Inc.
    Landline
  • (520) 334
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 335
    Tucson
    Cox Arizona Telcom, Inc. - Az
    Landline
  • (520) 336
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 337
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 338
    Tucson
    Onvoy, Llc - Az
    Landline
  • (520) 339
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 342
    Tucson
    Onvoy, Llc - Az
    Landline
  • (520) 343
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 344
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 345
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 349
    Tucson
    Cellco Partnership Dba Verizon Wireless - Az
    Mobile
  • (520) 350
    Phoenix
    Gila Local Exchange Carrier, Inc. - Az
    Landline
  • (520) 351
    Tucson
    Level 3 Telecom Of Arizona, Llc - Az
    Landline
  • (520) 352
    Tucson
    Electric Lightwave, Llc Dba Integra Telecom - Az
    Landline
  • (520) 353
    Tucson
    Onvoy, Llc - Az
    Landline
  • (520) 355
    Tucson
    Bandwidth.com Clec, Llc - Az
    Landline
  • (520) 356
    Qwest Corporation
    Landline
  • (520) 357
    Qwest Corporation
    Landline
  • (520) 358
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 359
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 360
    Tucson
    New Cingular Wireless Pcs, Llc
    Mobile
  • (520) 361
    Tohono O'odham Utility Authority
    Landline
  • (520) 362
    San Simon
    Tohono O'odham Utility Authority
    Landline
  • (520) 363
    Qwest Corporation
    Landline
  • (520) 364
    Douglas
    Qwest Corporation
    Landline
  • (520) 365
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 366
    Hereford
    Qwest Corporation
    Landline
  • (520) 368
    Tucson
    Qwest Corporation
    Landline
  • (520) 369
    Tucson
    Level 3 Communications, Llc - Az
    Landline
  • (520) 370
    Tucson
    Sprint Spectrum L.p.
    Mobile
  • (520) 371
    Phoenix
    Sprint Spectrum L.p.
    Mobile
  • (520) 373
    Tucson
    T-mobile Usa, Inc.
    Mobile
  • (520) 374
    Qwest Corporation
    Landline
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