Area Code 520 phone numbers
State: Arizona
In service since: 1995
Landlines: 331
Wireless prefixes: 192
Carriers: 45
Counties: 5
ZIP codes: 47
Major cities: Tucson, Phoenix, Sierra Vista, Tempe, Gilbert
Area Code 520 has 523 prefixes
| Prefix | County | City | Carrier |
|---|---|---|---|
| 1-520-200 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-201 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-202 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-203 | Pima | Tucson | Xo Arizona, Inc. |
| 1-520-204 | Pima | Tucson | Mcleodusa Telecommunications Services, Inc.- Az |
| 1-520-205 | Pima | Tucson | Qwest Corporation |
| 1-520-206 | Pima | Tucson | Qwest Corporation |
| 1-520-207 | Pima | Tucson | Cox Arizona Telcom, Inc. - Az |
| 1-520-208 | Maricopa | Tempe | Global Crossing Local Services, Inc.-az |
| 1-520-209 | Pima | Tucson | Qwest Corporation |
| 1-520-210 | Pima | Tucson | Onvoy, Llc - Az |
| 1-520-212 | Cochise | Benson | Midvale Telephone Exchange, Inc. |
| 1-520-213 | Maricopa | Tempe | T-mobile Usa, Inc. |
| 1-520-214 | Pima | Tucson | Neutral Tandem-arizona, Llc - Az |
| 1-520-215 | Maricopa | Chandler | Gila River Telecomm, Inc. |
| 1-520-216 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-217 | Pinal | Maricopa | Qwest Corporation |
| 1-520-218 | Pima | Tucson | Qwest Corporation |
| 1-520-219 | Pima | Tucson | Qwest Corporation |
| 1-520-220 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-221 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-222 | Pima | Tucson | Qwest Corporation |
| 1-520-223 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-224 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-225 | Pima | Tucson | Qwest Corporation |
| 1-520-226 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-227 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-228 | Pima | Tucson | Qwest Corporation |
| 1-520-229 | Pima | Tucson | Qwest Corporation |
| 1-520-230 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-231 | Maricopa | Phoenix | Bandwidth.com Clec, Llc - Az |
| 1-520-232 | Pima | Tucson | Qwest Corporation |
| 1-520-233 | Maricopa | Phoenix | At&t Local |
| 1-520-234 | Pima | Tucson | At&t Local |
| 1-520-235 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-236 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-237 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-238 | Maricopa | Tempe | T-mobile Usa, Inc. |
| 1-520-239 | Pima | Tucson | At&t Local |
| 1-520-240 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-241 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-243 | Pima | Tucson | Qwest Corporation |
| 1-520-244 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-245 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-247 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-248 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-249 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-250 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-251 | Maricopa | Phoenix | Sprint Spectrum L.p. |
| 1-520-252 | Maricopa | Phoenix | Sprint Spectrum L.p. |
| 1-520-253 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-254 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-255 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-256 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-257 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-258 | Pima | Tucson | Qwest Corporation |
| 1-520-259 | Pima | Tucson | North County Communications Corp. |
| 1-520-260 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-261 | Pima | Tucson | Bandwidth.com Clec, Llc - Az |
| 1-520-262 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-263 | Pima | Tucson | Cox Arizona Telcom, Inc. - Az |
| 1-520-264 | Pima | Tucson | At&t Local |
| 1-520-265 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-266 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-268 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-269 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-270 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-271 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-272 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-273 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-274 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-275 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-276 | Pima | Tucson | Bandwidth.com Clec, Llc - Az |
| 1-520-277 | Maricopa | Phoenix | Onvoy, Llc - Az |
| 1-520-278 | Pima | Tucson | Metro Pcs, Inc. |
| 1-520-279 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-280 | Maricopa | Phoenix | Sprint Spectrum L.p. |
| 1-520-281 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-282 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-283 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-284 | Pima | Tucson | Xo Arizona, Inc. |
| 1-520-285 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-286 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-287 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-288 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-289 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-290 | Pima | Tucson | Qwest Corporation |
| 1-520-291 | Pima | Tucson | Qwest Corporation |
| 1-520-292 | Pima | Tucson | Qwest Corporation |
| 1-520-293 | Pima | Tucson | Qwest Corporation |
| 1-520-294 | Pima | Tucson | Qwest Corporation |
| 1-520-295 | Pima | Tucson | Qwest Corporation |
| 1-520-296 | Pima | Tucson | Qwest Corporation |
| 1-520-297 | Pima | Tucson | Qwest Corporation |
| 1-520-298 | Pima | Tucson | Qwest Corporation |
| 1-520-299 | Pima | Tucson | Qwest Corporation |
| 1-520-300 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-301 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-302 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-303 | Pima | Tucson | Ymax Communications Corp. - Az |
| 1-520-304 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-305 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-306 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-307 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-308 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-309 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-310 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-312 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-313 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-314 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-315 | Maricopa | Chandler | Gila River Telecomm, Inc. |
| 1-520-316 | Qwest Corporation | ||
| 1-520-318 | Pima | Tucson | Qwest Corporation |
| 1-520-319 | Pima | Tucson | Qwest Corporation |
| 1-520-320 | Pima | Tucson | Qwest Corporation |
| 1-520-321 | Pima | Tucson | Qwest Corporation |
| 1-520-322 | Pima | Tucson | Qwest Corporation |
| 1-520-323 | Pima | Tucson | Qwest Corporation |
| 1-520-324 | Pima | Tucson | Qwest Corporation |
| 1-520-325 | Pima | Tucson | Qwest Corporation |
| 1-520-326 | Pima | Tucson | Qwest Corporation |
| 1-520-327 | Pima | Tucson | Qwest Corporation |
| 1-520-328 | Pima | Tucson | Qwest Corporation |
| 1-520-329 | Pima | Tucson | Teleport Communications America, Llc - Az |
| 1-520-330 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-331 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-332 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-333 | Pima | Tucson | Xo Arizona, Inc. |
| 1-520-334 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-335 | Pima | Tucson | Cox Arizona Telcom, Inc. - Az |
| 1-520-336 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-337 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-338 | Pima | Tucson | Onvoy, Llc - Az |
| 1-520-339 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-340 | Maricopa | Gilbert | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-341 | Pima | Tucson | Telnyx Llc |
| 1-520-342 | Pima | Tucson | Onvoy, Llc - Az |
| 1-520-343 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-344 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-345 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-347 | Pima | Tucson | Cox Arizona Telcom, Inc. - Az |
| 1-520-348 | Pima | Tucson | Centurylink Communications Llc |
| 1-520-349 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-350 | Maricopa | Phoenix | Gila Local Exchange Carrier, Inc. - Az |
| 1-520-351 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-352 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-353 | Pima | Tucson | Onvoy, Llc - Az |
| 1-520-354 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-355 | Pima | Tucson | Bandwidth.com Clec, Llc - Az |
| 1-520-356 | Qwest Corporation | ||
| 1-520-357 | Qwest Corporation | ||
| 1-520-358 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-359 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-360 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-361 | Tohono O'odham Utility Authority | ||
| 1-520-362 | Cochise | San Simon | Tohono O'odham Utility Authority |
| 1-520-363 | Qwest Corporation | ||
| 1-520-364 | Cochise | Douglas | Qwest Corporation |
| 1-520-365 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-366 | Cochise | Hereford | Qwest Corporation |
| 1-520-367 | Pima | Tucson | Onvoy Spectrum, Llc |
| 1-520-368 | Pima | Tucson | Qwest Corporation |
| 1-520-369 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-370 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-371 | Maricopa | Phoenix | Sprint Spectrum L.p. |
| 1-520-373 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-374 | Qwest Corporation | ||
| 1-520-375 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-377 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-378 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-381 | Maricopa | Phoenix | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-382 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-383 | Pima | Sells | Tohono O'odham Utility Authority |
| 1-520-384 | Cochise | Willcox | Qwest Corporation |
| 1-520-385 | Pinal | San Manuel | Qwest Corporation |
| 1-520-387 | Pima | Ajo | Table Top Telephone Co., Inc. |
| 1-520-388 | Pima | Tucson | Qwest Corporation |
| 1-520-389 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-390 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-391 | Maricopa | Phoenix | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-392 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-393 | Pima | Green Valley | Qwest Corporation |
| 1-520-394 | Santa Cruz | Patagonia | Qwest Corporation |
| 1-520-395 | Pima | Tucson | Comcast Phone Of Arizona, Llc - Az |
| 1-520-396 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-397 | Santa Cruz | Nogales | Qwest Corporation |
| 1-520-398 | Santa Cruz | Tumacacori | Qwest Corporation |
| 1-520-399 | Pima | Green Valley | Qwest Corporation |
| 1-520-400 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-401 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-402 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-403 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-404 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-405 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-406 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-407 | Pima | Tucson | Qwest Corporation |
| 1-520-408 | Pima | Tucson | Qwest Corporation |
| 1-520-409 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-410 | Pima | Tucson | Qwest Corporation |
| 1-520-413 | Maricopa | Phoenix | Level 3 Communications, Llc - Az |
| 1-520-414 | Maricopa | Phoenix | Level 3 Communications, Llc - Az |
| 1-520-415 | Pima | Tucson | Mcc Telephony Of The West, Llc - Az |
| 1-520-417 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-418 | Maricopa | Chandler | Gila River Telecomm, Inc. |
| 1-520-419 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-421 | Qwest Corporation | ||
| 1-520-422 | Pima | Tucson | At&t Local |
| 1-520-423 | Qwest Corporation | ||
| 1-520-424 | Qwest Corporation | ||
| 1-520-425 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-426 | Qwest Corporation | ||
| 1-520-427 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-428 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-429 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-430 | Maricopa | Chandler | Gila River Telecomm, Inc. |
| 1-520-431 | Maricopa | Phoenix | New Cingular Wireless Pcs, Llc |
| 1-520-432 | Cochise | Bisbee | Qwest Corporation |
| 1-520-433 | Pima | Tucson | Level 3 Communications, Llc - Az |
| 1-520-434 | Pima | Tucson | Qwest Corporation |
| 1-520-437 | Pima | Tucson | Xo Arizona, Inc. |
| 1-520-439 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-440 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-441 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-442 | Pima | Tucson | Bandwidth.com Clec, Llc - Az |
| 1-520-443 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-444 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-445 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-446 | Pima | Tucson | Usa Mobility Wireless, Inc. |
| 1-520-447 | Pima | Tucson | Onvoy, Llc - Az |
| 1-520-448 | Pima | Tucson | Peerless Network Of Arizona, Llc - Az |
| 1-520-449 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-450 | Maricopa | Tempe | T-mobile Usa, Inc. |
| 1-520-452 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-454 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-455 | Santa Cruz | Elgin | Qwest Corporation |
| 1-520-456 | Cochise | Huachuca City | Qwest Corporation |
| 1-520-457 | Cochise | Tombstone | Qwest Corporation |
| 1-520-458 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-459 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-460 | Pima | Tucson | Commnet Wireless, Llc |
| 1-520-461 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-462 | Pima | Tucson | Neutral Tandem-arizona, Llc - Az |
| 1-520-463 | Qwest Corporation | ||
| 1-520-464 | Qwest Corporation | ||
| 1-520-465 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-466 | Qwest Corporation | ||
| 1-520-468 | Pima | Tucson | Neutral Tandem-arizona, Llc - Az |
| 1-520-469 | Pima | Tucson | Qwest Corporation |
| 1-520-470 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-471 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-474 | Pima | Tucson | Sprint Spectrum L.p. |
| 1-520-477 | Pima | Tucson | Brooks Fiber Communications Of Tucson, Inc. - Az |
| 1-520-481 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-483 | Maricopa | Gilbert | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-484 | Pima | Tucson | 365 Wireless, Llc |
| 1-520-485 | Pima | Tucson | Bandwidth.com Clec, Llc - Az |
| 1-520-487 | Pinal | Mammoth | Qwest Corporation |
| 1-520-488 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-489 | Pima | Tucson | Qwest Corporation |
| 1-520-490 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-491 | Maricopa | Tempe | T-mobile Usa, Inc. |
| 1-520-494 | Qwest Corporation | ||
| 1-520-495 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-498 | Pima | Tucson | Qwest Corporation |
| 1-520-499 | Pima | Tucson | T-mobile Usa, Inc. |
| 1-520-500 | Pima | Tucson | Neutral Tandem-arizona, Llc - Az |
| 1-520-505 | Pima | Tucson | Electric Lightwave, Llc Dba Integra Telecom - Az |
| 1-520-507 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-508 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-509 | Maricopa | Phoenix | Level 3 Communications, Llc - Az |
| 1-520-510 | Maricopa | Phoenix | New Cingular Wireless Pcs, Llc |
| 1-520-512 | Pima | Tucson | Qwest Corporation |
| 1-520-513 | Pima | Tucson | Qwest Corporation |
| 1-520-514 | Pima | Tucson | Qwest Corporation |
| 1-520-515 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-516 | Pima | Tucson | Qwest Corporation |
| 1-520-518 | Maricopa | Phoenix | New Cingular Wireless Pcs, Llc |
| 1-520-519 | Pima | Tucson | Qwest Corporation |
| 1-520-525 | Cellco Partnership Dba Verizon Wireless - Az | ||
| 1-520-526 | Pima | Tucson | Commio, Llc |
| 1-520-528 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-529 | Pima | Tucson | Qwest Corporation |
| 1-520-531 | Pima | Tucson | Qwest Corporation |
| 1-520-533 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-538 | Cochise | Sierra Vista | Qwest Corporation |
| 1-520-539 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-540 | Pima | Tucson | Network Services Llc (tsr) |
| 1-520-544 | Pima | Tucson | Qwest Corporation |
| 1-520-545 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-546 | Pima | Tucson | Qwest Corporation |
| 1-520-547 | Pima | Tucson | Level 3 Telecom Of Arizona, Llc - Az |
| 1-520-548 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-549 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-550 | Maricopa | Chandler | Gila River Telecomm, Inc. |
| 1-520-551 | Pima | Tucson | New Cingular Wireless Pcs, Llc |
| 1-520-557 | Pima | Tucson | Network Services Llc (tsr) |
| 1-520-558 | Cochise | Pearce | Valley Telephone Cooperative, Inc. |
| 1-520-559 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |
| 1-520-560 | Maricopa | Phoenix | New Cingular Wireless Pcs, Llc |
| 1-520-561 | Pima | Tucson | Cellco Partnership Dba Verizon Wireless - Az |