Michigan, United States
Eastern Time
9:54 AM
Area Code
517
State / Province
Michigan
Country
United States
Time Zone
Eastern Time
Area code 517 covers 78 cities and communities across Michigan, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+15175550100">+15175550100</a><a href="tel:+15175550199">+15175550199</a>Look up which exchange in Michigan a specific 517 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
616 active prefixes in this area code, assigned as 4,293 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 4,293
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 517-200 | 0 | Litchfield | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | LNNGMIMNX4Z | 346 | — | — |
| 517-200 | 2 | Litchfield | Landline or VoIP | FRACTEL, LLC (965H) | LNNGMIMNXFZ | 346 | — | — |
| 517-200 | 3 | Litchfield | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-200 | 4 | Litchfield | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-200 | 6 | Litchfield | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - MI (770E) | LNNGMIMNX8Z | 346 | — | — |
| 517-200 | 7 | Litchfield | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - MI (6120) | LNNGMIVE2MD | 346 | — | — |
| 517-200 | 8 | Litchfield | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-200 | 9 | Litchfield | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-200 | A | Litchfield | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | LNNGMIMNX4Z | 346 | — | — |
| 517-201 | 0 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 1 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 2 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 3 | Leslie | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI (7157) | LANSING | 346 | — | — |
| 517-201 | 4 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 5 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 6 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 7 | Leslie | Wireless | ONVOY SPECTRUM, LLC (624H) | LNNGMIMN00Z | 346 | — | — |
| 517-201 | 8 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | 9 | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-201 | A | Leslie | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-202 | 0 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 1 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 2 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 3 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 4 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 5 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 6 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 7 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 8 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | 9 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-202 | A | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-203 | 0 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 1 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 2 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 3 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 4 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 5 | Lansing | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | LNNGMIMN02Z | 346 | — | — |
| 517-203 | 6 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-203 | 7 | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-203 | 8 | Lansing | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | LNNGMIMNX4Z | 346 | — | — |
| 517-203 | 9 | Lansing | Wireless | NEW CINGULAR WIRELESS PCS, LLC - IL (6534) | LNNGMIMNX4Z | 346 | — | — |
| 517-203 | A | Lansing | Landline | MICHIGAN BELL TEL CO (9323) | EAST LANSING | 346 | — | — |
| 517-204 | 0 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 1 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 2 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 3 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 4 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 5 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 6 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 7 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 8 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | 9 | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-204 | A | Lansing | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-205 | 0 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 1 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 2 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 3 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 4 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 5 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 6 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 7 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 8 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | 9 | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-205 | A | Jackson | Landline | MICHIGAN BELL TEL CO (9323) | JACKSON | 346 | — | — |
| 517-206 | 0 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 1 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 2 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 3 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 4 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 5 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 6 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 7 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 8 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | 9 | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-206 | A | Jackson | Wireless | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2964) | LNNGMIMNXSZ | 346 | — | — |
| 517-207 | A | Adrian | Landline or VoIP | TELNET WORLDWIDE, INC. (817J) | SFLDMIDC0MD | 340 | — | — |
| 517-208 | 0 | Britton | Landline or VoIP | PEERLESS NETWORK OF MICHIGAN, LLC - MI (933G) | SOUTHFIELD | 340 | — | — |
| 517-208 | 1 | Britton | Landline or VoIP | PEERLESS NETWORK OF MICHIGAN, LLC - MI (933G) | SOUTHFIELD | 340 | — | — |
| 517-208 | 2 | Britton | Landline or VoIP | PEERLESS NETWORK OF MICHIGAN, LLC - MI (933G) | SOUTHFIELD | 340 | — | — |
| 517-208 | 3 | Britton | Landline or VoIP | PEERLESS NETWORK OF MICHIGAN, LLC - MI (933G) | SOUTHFIELD | 340 | — | — |
| 517-208 | 4 | Britton | Landline or VoIP | PEERLESS NETWORK OF MICHIGAN, LLC - MI (933G) | SOUTHFIELD | 340 | — | — |
| 517-208 | 5 | Britton | Landline or VoIP | ONVOY, LLCV - MI (543C) | ADRNMIXGOMD | 340 | — | — |
| 517-208 | 6 | Britton | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - MI (770E) | BRHMMIBDBMD | 340 | — | — |
| 517-208 | 7 | Britton | Landline or VoIP | CENTURYLINK COMMUNICATIONS, LLC (508J) | SFLDMIBV3MD | 340 | — | — |
| 517-208 | 8 | Britton | Landline or VoIP | ONVOY, LLCV - MI (543C) | ADRNMIXGOMD | 340 | — | — |
| 517-208 | 9 | Britton | Landline or VoIP | ONVOY, LLCV - MI (543C) | ADRNMIXGOMD | 340 | — | — |
| 517-208 | A | Britton | Landline or VoIP | CENTURYLINK COMMUNICATIONS, LLC (508J) | SFLDMIBV3MD | 340 | — | — |
| 517-209 | 0 | Holt | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - MI (991E) | LNNGMIMN08Z | 346 | — | — |
| 517-209 | 1 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 2 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 3 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 4 | Holt | Landline or VoIP | PAETEC ITEL, LLC (829J) | LNNGMIMN16Z | 346 | — | — |
| 517-209 | 5 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 6 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 7 | Holt | Landline or VoIP | CLEAR RATE COMMUNICATIONS, LLC (046L) | — | 346 | — | — |
| 517-209 | 8 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | 9 | Holt | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (6003) | LNNGMIXIAMD | 346 | — | — |
| 517-209 | A | Holt | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - MI (991E) | LNNGMIMN08Z | 346 | — | — |
| 517-210 | 0 | Potterville | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
| 517-210 | 1 | Potterville | Landline or VoIP | ONVOY, LLCV - MI (543C) | LNNGMIMNX5Z | 346 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
616
Assignment Blocks
4,293
Rate Centers
78
Carriers of Record
62
| Type | Blocks | Share |
|---|---|---|
| Landline | 654 | 15% |
| Landline or VoIP | 2,091 | 49% |
| Wireless | 1,548 | 36% |
| Carrier | Blocks |
|---|---|
| ONVOY, LLCV - MI | 577 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 576 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 442 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 381 |
| MICHIGAN BELL TEL CO | 377 |
| LEVEL 3 COMMUNICATIONS, LLC - MI | 198 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 196 |
| ACD TELECOM, INC. - MI | 166 |
| FRONTIER NORTH, INC. - MI | 134 |
| ONVOY SPECTRUM, LLC | 119 |
| 52 other carriers | 1,127 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Lansing | 164 | 1,033 |
| Jackson | 63 | 486 |
| Adrian | 27 | 207 |
| Howell | 27 | 209 |
| Charlotte | 15 | 115 |
| Hillsdale | 15 | 87 |
| Coldwater | 14 | 87 |
| Holt | 13 | 133 |
| Dimondale | 12 | 131 |
| Albion | 11 | 63 |
| Fowlerville | 11 | 80 |
| Mason | 11 | 85 |
| Dansville | 8 | 63 |
| Grand Ledge | 8 | 72 |
| Eaton Rapids | 7 | 54 |
| Portland | 7 | 59 |
| Tecumseh | 7 | 42 |
| De Witt | 6 | 34 |
| Hudson | 6 | 41 |
| Jonesville | 6 | 30 |
| Leslie | 6 | 47 |
| Onondaga | 6 | 27 |
| Addison | 5 | 38 |
| Blissfield | 5 | 30 |
| Litchfield | 5 | 25 |
| Munith | 5 | 17 |
| Potterville | 5 | 45 |
| Stockbridge | 5 | 37 |
| Tekonsha | 5 | 20 |
| Burlington | 4 | 19 |
| Clinton | 4 | 31 |
| Homer | 4 | 32 |
| Laingsburg | 4 | 25 |
| Morenci | 4 | 26 |
| Nashville | 4 | 36 |
| Onsted | 4 | 38 |
| Parma | 4 | 24 |
| Reading | 4 | 20 |
| Rives Junction | 4 | 15 |
| Sunfield | 4 | 43 |
| Webberville | 4 | 27 |
| Williamston | 4 | 24 |
| Bath | 3 | 25 |
| Britton | 3 | 26 |
| Bundy Hill | 3 | 14 |
| Clarklake | 3 | 26 |
| Fitchburg | 3 | 16 |
| Grass Lake | 3 | 27 |
| Montgomery | 3 | 16 |
| Mulliken | 3 | 24 |
| Shaftsburg | 3 | 19 |
| Vermontville | 3 | 22 |
| Allen | 2 | 12 |
| Bell Oak | 2 | 17 |
| Bronson | 2 | 20 |
| Brooklyn | 2 | 9 |
| Cambria | 2 | 7 |
| Camden | 2 | 11 |
| Clayton | 2 | 16 |
| Coldwater Lake | 2 | 16 |
| Concord | 2 | 11 |
| Frontier | 2 | 8 |
| Hanover | 2 | 9 |
| Mosherville | 2 | 10 |
| Napoleon | 2 | 22 |
| North Adams | 2 | 11 |
| Osseo | 2 | 9 |
| Perry | 2 | 19 |
| Prattville | 2 | 8 |
| Quincy | 2 | 18 |
| Ransom | 2 | 8 |
| Springport | 2 | 7 |
| Tipton | 2 | 19 |
| Union City | 2 | 16 |
| Waldron | 2 | 7 |
| Deerfield | 1 | 10 |
| Ogden Center | 1 | 11 |
| Sand Creek | 1 | 10 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 517 is a North American Numbering Plan (NANP) telephone area code assigned to Michigan, United States. It is one of 13 area codes serving Michigan. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 517 is an active North American Numbering Plan (NANP) area code, currently assigned to Michigan, United States. It is safe to answer or dial calls using this area code.
Area code 517 covers 78 cities and communities in Michigan, including Addison, Adrian, Albion, Allen, Bath, and 73 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 517 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 517 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Michigan, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 517 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 517 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 517 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +15175550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.