CallataGuides

Get a local business phone number in Tucson, AZ

Tucson's area code, prefixes and carriers from NANPA records, and how to put a Tucson number in front of your customers.

Area code
520
Exchanges
399NANPA-assigned
Carriers
40
Population
554,013Census 2024 est.

Tucson area codes

Tucson, in Pima County, Arizona, had a Census-estimated population of 554,013 in July 2024. All 399 exchanges NANPA lists for its rate center are in area code 520. Tucson is in the Mountain time zone.

According to NANPA's dialing-plan data, local calls within 520 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Tucson, AZ
Area codeExchanges hereShareIn service sinceOverlay withTime zone
520399100%1995noneMountain

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Tucson exchanges by carrier

40 carriers hold the 399 exchanges assigned to Tucson's rate center. Qwest Corporation has the most, with 143. 249 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Carriers holding exchanges in Tucson, AZ
Carrier (NANPA operating company)ExchangesShare
Qwest Corporation14336%
Cellco Partnership d/b/a Verizon Wireless - Az6516%
T-mobile USA, INC.4712%
New Cingular Wireless PCS, LLC4110%
Onvoy, LLC - Az184.5%
Bandwidth.com CLEC, LLC - Az133.3%
Level 3 Telecom of Arizona, LLC - Az102.5%
Level 3 Communications, LLC - Az82.0%
Metropcs, INC.61.5%
Mcimetro Access Transmission Services LLC - Az41.0%
Comcast Ip Phone, LLC41.0%
Electric Lightwave LLC d/b/a Allstream41.0%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Exchanges (NPA-NXX) assigned in Tucson

These are the central office codes NANPA records for Tucson. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 48 of the 399 were assigned in 2020 or later.

Prefixes assigned in Tucson, AZ
Area codePrefixes (NXX)
520202, 203, 204, 205, 206, 207, 209, 214, 218, 219, 222, 225, 228, 229, 230, 232, 235, 237, 239, 240, 241, 243, 244, 245, 246, 247, 248, 250, 256, 257, 258, 259, 260, 261, 262, 268, 269, 270, 271, 272, 273, 274, 275, 276, 278, 279, 282, 283, 284, 286, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 312, 314, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 336, 338, 339, 342, 343, 344, 345, 347, 349, 351, 352, 354, 355, 358, 359, 360, 365, 367, 369, 370, 372, 373, 382, 388, 389, 390, 392, 393, 395, 396, 398, 399, 400, 401, 403, 404, 405, 406, 407, 408, 409, 410, 416, 419, 420, 425, 427, 428, 429, 433, 434, 437, 440, 441, 443, 444, 445, 446, 447, 448, 449, 451, 460, 461, 462, 465, 467, 468, 469, 471, 474, 475, 476, 477, 479, 481, 482, 484, 485, 486, 488, 489, 490, 492, 493, 495, 496, 497, 498, 499, 500, 501, 505, 512, 513, 514, 516, 519, 524, 526, 528, 529, 530, 531, 534, 535, 537, 539, 540, 542, 543, 544, 545, 546, 547, 548, 549, 551, 554, 561, 565, 566, 570, 571, 572, 573, 574, 575, 576, 577, 578, 579, 584, 585, 589, 591, 594, 596, 599, 600, 602, 603, 605, 606, 609, 612, 613, 614

First 240 of 399 prefixes. Source: NANPA.

When Tucson's exchanges were assigned

The table groups Tucson's exchanges by the decade NANPA recorded them as assigned.

Tucson, AZ: exchanges by decade assigned
Decade assignedExchangesShare
2000s4526%
2010s7846%
2020s4828%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

Rate centers and local calling in Tucson

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Tucson's numbers are rated to the TUCSON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Tucson number.

If your business already has a Tucson number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Businesses around Tucson

Tucson is part of the Tucson, AZ metro area, home to 1.1 million people in 2024. County Business Patterns counted 21,381 business establishments in the Tucson, AZ metro area in 2023, employing 341,481 people. The largest sectors by establishment count are health care and social assistance (3,028), professional, scientific, and technical services (2,611), and retail trade (2,561).

Selected industries in the Tucson, AZ metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants81017,46521.6
Offices of real estate agents and brokers6919441.4
Physician practices6669,91314.9
Full-service restaurants60615,60625.8
Law offices4632,0264.4
Insurance agencies and brokerages3971,3103.3
Dental offices3542,6267.4
Plumbing, heating and air-conditioning contractors3464,24512.3

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

A Tucson number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Tucson is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Tucson, AZ metro area, 16 users on RingCentral RingEX Core come to $480.00 a month and on Ooma Office Pro $399.20, at month-to-month list prices checked September 28, 2026. Callata comes to $319.00 a month for 16 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for a 16-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$319.00$3,828.00
Quo (Starter)$19.00 per user$304.00$3,648.00
Nextiva (Core)$23.00 per user$368.00$4,416.00
Ooma (Office Pro)$24.95 per user$399.20$4,790.40
Dialpad (Standard)$27.00 per user$432.00$5,184.00
RingCentral (RingEX Core)$30.00 per user$480.00$5,760.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Tucson, AZ?

520. All exchanges NANPA lists for Tucson are in 520.

How many phone companies have exchanges in Tucson?

40, holding 399 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Tucson business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Tucson?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 16 users come to $319.00 a month. For comparison, 16 users on RingCentral RingEX Core list at $480.00 a month (checked September 28, 2026).