| Company | Now Known As | Street Address | Customer Contact No. |
|---|---|---|---|
| Backbone Communications, Inc. | 510 W 6th Street Suite 930 Los Angeles, CA 90014 | 213-799-1705 | |
| Baltimore-Washington Telephone Company | 5000 Birth St. Suite 3000 Newport Beach, CA 92660 | 855-228-9923 | |
| Bandwidth.com CLEC, LLC | 900 Main Campus Drive Suite 100 Raleigh, NC 27606 | 855-513-9666 | |
| Barr Tell USA, Inc. | 218 East Park Ave. Suite 522 Long Beach, NY 11561 | 866-948-6216 | |
| BCE Nexxia Corporation | 1821 Walden Office Square Suite 400 Schaumburg, IL 60173 | 855-848-7155 | |
| BCM One, Inc. | 295 Madison Avenue 5th Floor New York, NY 10017 | 888-543-2000 | |
| BCN Telecom, Inc. | 1200 Mount Kemble Avenue 3rd Floor Morristown, NJ 07960 | 866-462-9259 | |
| Berkshire Cable Corporation d/b/a Consolidated Communications Long Distance | 2116 S. 17th Street Mattoon, IL 61938 | 844-968-7224 | |
| Berkshire Telephone Corporation d/b/a Consolidated Communications | 2116 S. 17th Street Mattoon, IL 61938 | 844-968-7224 | |
| BIF IV Intrepid OpCo LLC | 11001 W 120th Ave, #305 Broomfield, CO 80021 | 866-371-1860 | |
| Billing Services of America, Inc. | 10161 Park Run Drive Suite 231 Las Vegas, NV 89145 | 952-401-0681 | |
| Blink Communications Corp | 70 Charles Lindbergh Blvd. Lower Level Suite 100 Uniondale, NY 11553 | 516-442-5083 | |
| Block Line Systems, LLC | 2700 Oregon Road Northwood, OH 43619 | 888-808-6111 | |
| Broadband Dynamics, L.L.C. | 8757 E. Via de Commercio Floor 1 Scottsdale, AZ 85258 | 800-277-1580 | |
| Broadview Networks, Inc. | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 | |
| Broadvox-CLEC, LLC | One North Wacker Drive Suite 2500 Chicago, IL 60606 | 803-902-6000 | |
| Broadwing Communications, LLC. | 100 CenturyLink Drive Monroe, LA 71203 | 877-453-8353 | |
| BT Communications Sales LLC | 11440 Commerce Park Drive Suite 100 Reston, VA 20191 | 833-556-6406 | |
| Buehner-Fry Inc. dba Resort Operator Services | 386 SW Scalehouse Court Bend, OR 97702 | 800-777-9511 | |
| Buehner-Fry, Inc. dba Directdial USA | 389 SW Scalehouse Court Bend, OR 97702 | 800-777-9511 | |
| BullsEye Telecom, Inc. | 25925 Telegraph Road Suite 210 Southfield, MI 48033 | 877-638-2855 | |
| Business Automation Technologies, Inc. d/b/a Data Network Solutions of New Jersey | 116 Oceanport Ave Suite 1 Little SIlver, NJ 07739 | 732-741-5889 | |
| Business Telecom, LLC d/b/a EarthLink Business | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 | |