Area code 608
5,165 number blocks indexed across 82 carriers.
States: WI (5,165)
Carriers
| OCN | Company | HQ | Type | Blocks | Recent | Website |
|---|---|---|---|---|---|---|
| 6529 | T-Mobile USA Inc | Bellevue, WA | Personal Communications Service (Wireless) | 310 | 56 | t-mobile.com |
| 6534 | New Cingular Wireless PCS LLC - IL | Atlanta, GA | Wireless Carrier | 364 | 42 | att.com |
| 5562 | T-Mobile USA Inc | Dallas, TX | Personal Communications Service (Wireless) | 86 | 41 | metropcs.com |
| 6508 | Cellco Partnership dba Verizon Wireless - WI | Olathe, KS | Wireless Carrier | 506 | 17 | verizonwireless.com |
| 225C | Onvoy LLC - WI | Chicago, IL | Competitive Local Exchange Carrier | 754 | 15 | sinch.com |
| 6274 | United States Cellular - WI | Chicago, IL | Wireless Carrier | 355 | 14 | uscellular.com |
| 145J | Terra Nova Telecom Inc | Lakewood Ranch, FL | IP-Enabled Service / VoIP | 13 | 12 | terranova.net |
| 007F | Bandwidth.com CLEC LLC - WI | Cary, NC | Competitive Local Exchange Carrier | 219 | 10 | bandwidth.com |
| 792K | Charter IP Enabled Services LLC | Saint Louis, MO | IP-Enabled Service / VoIP | 214 | 7 | |
| 321J | HD Carrier LLC | Henderson, NV | IP-Enabled Service / VoIP | 9 | 5 | hdcarrier.com |
| 5489 | Level 3 Communications LLC - WI | Broomfield, CO | Competitive Local Exchange Carrier | 224 | 2 | centurylink.com |
| 490J | Boost SubscriberCo LLC | Washington, DC | Wireless Carrier | 11 | 2 | dish.com |
| 506J | Twilio International Inc | San Francisco, CA | IP-Enabled Service / VoIP | 6 | 2 | twilio.com |
| 624H | Onvoy Spectrum LLC | Broomfield, CO | Wireless Carrier | 121 | 1 | |
| 227F | Peerless Network of Wisconsin LLC - WI | Chicago, IL | Competitive Local Exchange Carrier | 46 | 1 | peerlessnetwork.com |
| 7229 | MCImetro Access Transmission Services LLC | Vienna, VA | Competitive Local Exchange Carrier | 45 | 1 | verizon.com |
| 9327 | Ameritech Wisconsin | Hoffman Estates, IL | Regional Bell Operating Company | 282 | — | att.com |
| 0886 | Frontier North Inc - WI | Rochester, NY | Incumbent Local Exchange Carrier | 248 | — | frontier.com |
| 7216 | Teleport Communications America - WI - LLC | Staten Island, NY | Competitive Local Exchange Carrier | 154 | — | att.com |
| 520K | TDS Metrocom LLC | Madison, WI | IP-Enabled Service / VoIP | 120 | — | |
| 508J | CenturyLink Communications LLC | Littleton, CO | IP-Enabled Service / VoIP | 103 | — | centurylink.com |
| 1159 | Brightspeed of Central Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 97 | — | centurylink.com |
| 829J | PAETEC iTel LLC | Charlotte, NC | IP-Enabled Service / VoIP | 80 | — | |
| 516J | Ton80 Communications LLC | Anderson, SC | IP-Enabled Service / VoIP | 66 | — | coretel.net |
| 983F | MCC Telephony of the Midwest LLC - WI | Middletown, NY | Competitive Local Exchange Carrier | 55 | — | mediacomcc.com |
| 0922 | Brightspeed of Western Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 53 | — | centurylink.com |
| 0913 | Brightspeed of Midwest Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 52 | — | centurylink.com |
| 0963 | Utelco Inc | Madison, WI | Incumbent Local Exchange Carrier | 50 | — | tdstelecom.com |
| 7588 | CenturyLink Communications LLC - WI | Monroe, LA | Competitive Local Exchange Carrier | 40 | — | centurylink.com |
| 0881 | Mid-Plains Telephone Inc | Madison, WI | Incumbent Local Exchange Carrier | 37 | — | tdstelecom.com |
| 698E | Michigan Wireless LLC dba Bug Tussel Wireless | Green Bay, WI | Wireless Carrier | 35 | — | btussel.com |
| 0917 | Mt. Vernon Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 34 | — | tdstelecom.com |
| 965H | Fractel LLC | Indialantic, FL | IP-Enabled Service / VoIP | 29 | — | fractel.net |
| 0930 | Grantland Telecom Inc | Madison, WI | Incumbent Local Exchange Carrier | 26 | — | tdstelecom.com |
| 1155 | Telephone USA of Wisconsin LLC dba CenturyLink | Monroe, LA | Incumbent Local Exchange Carrier | 25 | — | centurylink.com |
| 0880 | The Farmers Telephone Company | Lancaster, WI | Incumbent Local Exchange Carrier | 23 | — | tdstelecom.com |
| 0924 | Brightspeed of North Central Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 19 | — | centurylink.com |
| 0895 | Brightspeed of Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 17 | — | centurylink.com |
| 939H | Commio LLC | Austin, TX | IP-Enabled Service / VoIP | 16 | — | commio.com |
| MULT | Multiple OCN Listing | Administrative / Reserved | 14 | — | ||
| 2556 | Tech Com Inc - WI | Blue River, WI | Competitive Local Exchange Carrier | 12 | — | genuinetel.com |
| 408G | Marquette-Adams Telephone Cooperative Inc - WI | Oxford, WI | Competitive Local Exchange Carrier | 12 | — | maadtelco.com |
| 516C | AT&T Enterprises LLC | San Antonio, TX | IP-Enabled Service / VoIP | 12 | — | att.com |
| 732J | NUSO LLC | University City, MO | IP-Enabled Service / VoIP | 11 | — | brightlink.com |
| 0859 | Central State Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 10 | — | tdstelecom.com |
| 0958 | Tenney Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 10 | — | tdstelecom.com |
| 0970 | Brightspeed of Western Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 10 | — | centurylink.com |
| 3043 | MH Telecom Inc - WI | Mount Horeb, WI | Competitive Local Exchange Carrier | 10 | — | mhtc.net |
| 1183 | Citizens Telecommunications Company of Illinois dba Frontier Citizens Communications of Illinois | Rochester, NY | Incumbent Local Exchange Carrier | 9 | — | frontier.com |
| 0966 | Vernon Telephone Cooperative Inc | Westby, WI | Incumbent Local Exchange Carrier | 8 | — | vernoncom.coop |
| 0968 | Waunakee Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 8 | — | tdstelecom.com |
| 0875 | Dickeyville Telephone Corporation | Lancaster, WI | Incumbent Local Exchange Carrier | 7 | — | tdstelecom.com |
| 197D | Vonage America LLC | Holmdel, NJ | IP-Enabled Service / VoIP | 7 | — | vonage.com |
| 073H | Telnyx LLC | Chicago, IL | IP-Enabled Service / VoIP | 6 | — | telnyx.com |
| 0849 | Black Earth Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 6 | — | tdstelecom.com |
| 6630 | Spok Inc | Plano, TX | Wireless Carrier | 6 | — | spok.com |
| 7322 | Level 3 Telecom of Wisconsin LP - WI | Littleton, CO | Competitive Local Exchange Carrier | 6 | — | centurylink.com |
| 0942 | Richland-Grant Telephone Cooperative Inc | La Valle, WI | Incumbent Local Exchange Carrier | 5 | — | rgtc.coop |
| 0908 | Marquette-Adams Telephone Cooperative Inc | Oxford, WI | Incumbent Local Exchange Carrier | 4 | — | maadtelco.com |
| 0934 | Brightspeed of Western Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 4 | — | centurylink.com |
| 1036 | Frontier North Inc - IL | Rochester, NY | Incumbent Local Exchange Carrier | 4 | — | frontier.com |
| 9748 | American Messaging Services LLC | Lewisville, TX | Wireless Carrier | 4 | — | americanmessaging.net |
| 0866 | Cochrane Cooperative Telephone Company | Cochrane, WI | Incumbent Local Exchange Carrier | 3 | — | cochranetel.com |
| 0868 | Coon Valley Farmers Telephone Company | Coon Valley, WI | Incumbent Local Exchange Carrier | 3 | — | coonvalleytel.com |
| 495J | Stratus Networks Inc | Peoria Heights, IL | IP-Enabled Service / VoIP | 3 | — | stratusnet.com |
| 717E | Vernon Communications Cooperative | Westby, WI | Competitive Local Exchange Carrier | 3 | — | vernoncom.coop |
| 0899 | La Valle Telephone Cooperative | La Valle, WI | Incumbent Local Exchange Carrier | 2 | — | rgtc.coop |
| 0900 | Lemonweir Valley Telephone Company | Camp Douglas, WI | Incumbent Local Exchange Carrier | 2 | — | getlynxx.com |
| 318J | Comcast IP Phone LLC | Philadelphia, PA | IP-Enabled Service / VoIP | 2 | — | comcast.com |
| 425J | CSC Wireless LLC | Long Island City, NY | Wireless Carrier | 2 | — | alticeusa.com |
| 478J | NUSO LLC | Atlanta, GA | IP-Enabled Service / VoIP | 2 | — | brightlink.com |
| 551G | NUSO LLC | Atlanta, GA | Wireless Carrier | 2 | — | 365wireless.net |
| 7421 | AT&T Local | Bedminster, NJ | Competitive Local Exchange Carrier | 2 | — | att.com |
| 996H | Airespring Inc | Van Nuys, CA | IP-Enabled Service / VoIP | 2 | — | airespring.com |
| 0841 | Brightspeed of Western Wisconsin LLC | Monroe, LA | Incumbent Local Exchange Carrier | 1 | — | centurylink.com |
| 0847 | Belmont Telephone Company | Madison, WI | Incumbent Local Exchange Carrier | 1 | — | cstech.com |
| 0872 | Cuba City Telephone Exchange Company Inc | Madison, WI | Incumbent Local Exchange Carrier | 1 | — | cstech.com |
| 0892 | Hillsboro Telephone Company Inc | Hillsboro, WI | Incumbent Local Exchange Carrier | 1 | — | |
| 0916 | Mt. Horeb Telephone Company | Dodgeville, WI | Incumbent Local Exchange Carrier | 1 | — | mhtc.net |
| 0967 | Frontier Communications of Wisconsin LLC | Rochester, NY | Incumbent Local Exchange Carrier | 1 | — | frontier.com |
| 156J | RCLEC Inc | Centennial, CO | IP-Enabled Service / VoIP | 1 | — | rclec.com |
| 515J | IP Horizon LLC | Orlando, FL | IP-Enabled Service / VoIP | 1 | — |