National Phone Number Registry NPNR

(520)
Enter 7-digit phone number for area code 520 or the complete 10-digit phone number

Phone Prefixes for Area Code 520

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Area code Location Company / Service Provider
520-200 HAYDEN, AZ ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - AZ
520-201 SAN MANUEL, AZ ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - AZ
520-202 TUCSON, AZ LEVEL 3 TELECOM OF ARIZONA, LLC - AZ
520-203 TUCSON, AZ XO ARIZONA, INC.
520-204 TUCSON, AZ MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- AZ
520-205 TUCSON, AZ QWEST CORPORATION
520-206 TUCSON, AZ QWEST CORPORATION
520-207 TUCSON, AZ COX ARIZONA TELCOM, INC. - AZ
520-208 CASAGRANDE, AZ GLOBAL CROSSING LOCAL SERVICES, INC.-AZ
520-209 TUCSON, AZ QWEST CORPORATION
520-210 TOMBSTONE, AZ ONVOY, LLC - AZ
520-212 CASCABEL, AZ MIDVALE TELEPHONE EXCHANGE, INC.
520-213 CASAGRANDE, AZ T-MOBILE USA, INC.
520-214 TUCSON, AZ NEUTRAL TANDEM-ARIZONA, LLC - AZ
520-215 BLACKWATER, AZ GILA RIVER TELECOMM, INC.
520-216 NOGALES, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-217 CASAGRANDE, AZ QWEST CORPORATION
520-218 TUCSON, AZ QWEST CORPORATION
520-219 TUCSON, AZ QWEST CORPORATION
520-220 Sierra Vista, AZ T-MOBILE USA, INC.
520-221 BENSON, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-222 TUCSON, AZ QWEST CORPORATION
520-223 NOGALES, AZ LEVEL 3 COMMUNICATIONS, LLC - AZ
520-224 Sierra Vista, AZ ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - AZ
520-225 TUCSON, AZ QWEST CORPORATION
520-226 Sierra Vista, AZ LEVEL 3 COMMUNICATIONS, LLC - AZ
520-227 Sierra Vista, AZ SPRINT SPECTRUM L.P.
520-228 TUCSON, AZ QWEST CORPORATION
520-229 TUCSON, AZ QWEST CORPORATION
520-230 TUCSON, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-231 WHITLOW, AZ BANDWIDTH.COM CLEC, LLC - AZ
520-232 TUCSON, AZ QWEST CORPORATION
520-233 CASAGRANDE, AZ AT&T LOCAL
520-234 Sierra Vista, AZ AT&T LOCAL
520-235 TUCSON, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-236 Sierra Vista, AZ SPRINT SPECTRUM L.P.
520-237 TUCSON, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-238 YUMA, AZ T-MOBILE USA, INC.
520-239 TUCSON, AZ AT&T LOCAL
520-240 TUCSON, AZ CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ
520-241 TUCSON, AZ NEW CINGULAR WIRELESS PCS, LLC
520-243 TUCSON, AZ QWEST CORPORATION
520-244 TUCSON, AZ T-MOBILE USA, INC.
520-245 TUCSON, AZ T-MOBILE USA, INC.
520-247 TUCSON, AZ NEW CINGULAR WIRELESS PCS, LLC
520-248 TUCSON, AZ T-MOBILE USA, INC.
520-249 Sierra Vista, AZ SPRINT SPECTRUM L.P.
520-250 TUCSON, AZ SPRINT SPECTRUM L.P.
520-251 CASAGRANDE, AZ SPRINT SPECTRUM L.P.
520-252 CASAGRANDE, AZ SPRINT SPECTRUM L.P.
New numbers being added to 520 area code
Effective: 08/27/2017
520-367 in TUCSON, AZ
ONVOY SPECTRUM, LLC
Effective: 06/25/2017
520-526 in TUCSON, AZ
COMMIO, LLC
Effective: 07/25/2017
520-685 in SIERRA VISTA, AZ
COX ARIZONA TELCOM, INC. - AZ
Effective: 08/06/2017
520-849 in TUCSON, AZ
AIRUS, INC. - AZ
520 Area Code Information
Type of code: General Purpose Code
Location: AZ - US
Time zone: M
Assigned for use: Yes
Code in service: Yes
Service date: March 19, 1995
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): IL94-01-030
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D NA
Foreign local calls: 10D NA
Home toll calls: 1+10D NA
Foreign toll calls: 1+10D -
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