Area code 517
4,214 number blocks indexed across 67 carriers.
States: MI (4,214)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 372 | 52 | att.com |
| 6003 | Cellco Partnership dba Verizon Wireless - MI | Olathe, KS | Wireless Carrier | 434 | 21 | verizonwireless.com |
| 991E | Bandwidth.com CLEC LLC - MI | Cary, NC | Competitive Local Exchange Carrier | 75 | 15 | bandwidth.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 9 | 8 | terranova.net |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 9 | 6 | hdcarrier.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 18 | 5 | dish.com |
| 2964 | Omnipoint Communications Midwest Operations LLC | Cedar Knolls, NJ | Personal Communications Service (Wireless) | 579 | 4 | t-mobile.com |
| 792K | Charter IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 19 | 4 | |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 6 | 2 | brightlink.com |
| 700J | Wavenation LLC | Chicago, IL | IP-Enabled Service / VoIP | 2 | 2 | peerlessnetwork.com |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 109 | 1 | comcast.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 104 | 1 | metropcs.com |
| 933G | Peerless Network of Michigan LLC - MI | Chicago, IL | Competitive Local Exchange Carrier | 44 | 1 | peerlessnetwork.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 5 | 1 | brightlink.com |
| 733J | Wiretap Telecom LLC | Miami, FL | IP-Enabled Service / VoIP | 2 | 1 | wiretaptelecom.com |
| 793K | TWC IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 2 | 1 | |
| 543C | Onvoy LLC V - MI | Chicago, IL | Competitive Local Exchange Carrier | 576 | — | sinch.com |
| 9323 | Ameritech Michigan | Hoffman Estates, IL | Regional Bell Operating Company | 378 | — | att.com |
| 6120 | Level 3 Communications LLC - MI | Westminster, CO | Competitive Local Exchange Carrier | 198 | — | centurylink.com |
| 7157 | MCImetro Access Transmission Services LLC - MI | Vienna, VA | Competitive Local Exchange Carrier | 180 | — | verizon.com |
| 3535 | ACD Telecom Inc - MI | East Lansing, MI | Competitive Local Exchange Carrier | 165 | — | acdtelecom.com |
| 0695 | Frontier North Inc - MI | Rochester, NY | Incumbent Local Exchange Carrier | 134 | — | frontier.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 119 | — | |
| 770E | Teleport Communications America LLC - MI | Bedminster, NJ | Competitive Local Exchange Carrier | 92 | — | att.com |
| 0681 | Frontier Midstates Inc - MI | Rochester, NY | Incumbent Local Exchange Carrier | 65 | — | frontier.com |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 57 | — | centurylink.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 46 | — | |
| 817J | Interactive Services Network Inc | Madison Heights, MI | IP-Enabled Service / VoIP | 44 | — | |
| 2550 | 123.Net LLC | Grand Rapids, MI | Competitive Local Exchange Carrier | 38 | — | 123.net |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 30 | — | att.com |
| 961J | WOW! Internet Cable and Phone | Evansville, IN | IP-Enabled Service / VoIP | 30 | — | wowinc.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 28 | — | commio.com |
| 4417 | Frontier Communications of Michigan Inc | Rochester, NY | Incumbent Local Exchange Carrier | 26 | — | frontier.com |
| 0726 | Shiawassee Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 23 | — | tdstelecom.com |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 22 | — | coretel.net |
| 558A | Deerfield Farmers' Telephone Company - MI | Petersburg, MI | Competitive Local Exchange Carrier | 19 | — | cass.net |
| 7279 | MCImetro Access Transmission Services LLC - MI | Vienna, VA | Competitive Local Exchange Carrier | 15 | — | verizon.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 15 | — | fractel.net |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 3459 | TC3 Telecom Inc - MI | Petersburg, MI | Competitive Local Exchange Carrier | 12 | — | d-pcomm.com |
| 9748 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 10 | — | americanmessaging.net |
| 460K | First Communications LLC | Oakbrook Terrace, IL | IP-Enabled Service / VoIP | 9 | — | |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 9 | — | spok.com |
| 046L | Clear Rate Communications LLC | Troy, MI | IP-Enabled Service / VoIP | 8 | — | |
| 0691 | Deerfield Farmers Telephone Company | Petersburg, MI | Incumbent Local Exchange Carrier | 7 | — | cass.net |
| 0672 | Communications Corporation of Michigan | Madison, WI | Incumbent Local Exchange Carrier | 6 | — | tdstelecom.com |
| 0714 | Ogden Telephone Company - MI | Blissfield, MI | Incumbent Local Exchange Carrier | 6 | — | ogdentel.com |
| 0671 | Brightspeed of Central Michigan Inc | Monroe, LA | Incumbent Local Exchange Carrier | 5 | — | centurylink.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 5 | — | twilio.com |
| 0725 | Sand Creek Telephone Company | Sand Creek, MI | Incumbent Local Exchange Carrier | 4 | — | sandcreektelco.com |
| 622J | Skye Telecom LLC dba Skyetel | Vancouver, WA | IP-Enabled Service / VoIP | 4 | — | skyetel.com |
| 691A | DayStarr LLC dba DayStarr Communications - MI | Owosso, MI | Competitive Local Exchange Carrier | 4 | — | daystarr.net |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 3 | — | vonage.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 2 | — | alticeusa.com |
| 495J | Stratus Networks Inc | Peoria Heights, IL | IP-Enabled Service / VoIP | 2 | — | stratusnet.com |
| 597F | VOIP Innovations LLC | Pittsburgh, PA | IP-Enabled Service / VoIP | 2 | — | voipstreet.com |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 2 | — | att.com |
| 9245 | CynergyComm.net Inc - MI | Rochester Hills, MI | Underlying Local Exchange Carrier | 2 | — | cynergycomm.net |
| 0728 | Springport Telephone Company | Springport, MI | Incumbent Local Exchange Carrier | 1 | — | springcom.com |
| 0734 | Waldron Telephone Company | Waldron, MI | Incumbent Local Exchange Carrier | 1 | — | waldrontel.com |
| 156J | RCLEC Inc | Centennial, CO | IP-Enabled Service / VoIP | 1 | — | rclec.com |
| 2518 | Lucre Inc - MI | Grand Rapids, MI | Competitive Local Exchange Carrier | 1 | — | |
| 3212 | Zenk Group Ltd dba Planet Access - MI | Fenton, MI | Competitive Local Exchange Carrier | 1 | — | |
| 356D | American Broadband and Telecommunications Company - MI | Sylvania, OH | Competitive Local Exchange Carrier | 1 | — | ambt.net |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 1 | — | |
| 591C | Westphalia Broadband Inc - MI | Westphalia, MI | Competitive Local Exchange Carrier | 1 | — | power-net.net |
| 9714 | Grid 4 Communications Inc - MI | Birmingham, MI | Underlying Local Exchange Carrier | 1 | — | grid4.com |