Search Registered Service Providers

Common Carrier: Company that provides telecommunication services to the general public.
Pay Telephone Providers: Company that is registered to provide payphone services.
Competitive Local Exchange Carrier: Local telephone company that competes against the incumbent.
Data Local Exchange Carrier: Company that provides data services.
Incumbent Local Exchange Carrier: Local telephone company that is the incumbent in the area.
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Search Results
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800 Response Information Services, LLC800-639-1650Click for website
Access Long Distance, Inc.866-818-6183Click for website
Access One, Inc. Click for website
AccessLine Communications Corporation877-880-0055Click for website
AccessPlus Communications, Inc.978-499-9164Click for website
ACN Communication Services, LLC877-226-1010Click for website
Advantage Telecommunications, Corp.800-841-4614Click for website
Affinity Network Incorporated(866)493-2741Click for website
Affordable Long Distance, LLC715-392-7253Click for website
Airespring, Inc.800-825-1055Click for website
Airus, Inc.888-380-2721Click for website
Alliance Global Networks LLC800-756-2236Click for website
Allied Telecom Group, LLC866-595-9915Click for website
American Telephone Company, LLC800-600-5050Click for website
AmeriVision Communications, Inc.800-755-1844Click for website
ANPI Business LLC877-366-2674Click for website
ANPI LLC877-366-2674Click for website
Archtop Fiber LLC800-275-2724Click for website
AT&T Corp.800-222-2020Click for website
ATC Outdoor DAS, LLC1-877-282-7483Click for website CLEC, LLC800-808-5150Click for website
Barr Tell USA, Inc.212-226-4420Click for website
BCM One, Inc.888-543-2000Click for website
BCN Telecom, Inc.800-768-2852Click for website
BIF IV Intrepid OpCo LLC ("Intrepid")866-371-1860Click for website
Big River Telephone Company, LLC573-651-3373Click for website
Billing Services of America, Inc.877-773-2888Click for website
Block Line Systems, LLC1-888-808-6111Click for website
Boldyn Networks US LLC fka Mobilitie LLC877-999-7070Click for website
Boundless Broadband, LLC1-800-552-0426Click for website
Brazilian Help, Inc.800-994-0016Click for website
BridgeConnex, LLC888-749-3510Click for website
Broadband Dynamics, LLC800-277-1580Click for website
Broadview Networks, Inc.800-BROADVIEWClick for website
Broadvox-CLEC LLC877-884-6597Click for website
Broadwing Communications LLC814-260-2000Click for website
BT Communications Sales LLC Click for website
Buehner-Fry, Inc.514-617-2933Click for website
BullsEye Telecom, Inc.877-638-2855Click for website
Cambridge Network Solutions LLC866-661-3434Click for website
Cause Based Commerce Incorporated877-474-3662Click for website
CBTS Technology Solutions LLC1-800-571-6601Click for website
Centerline Communications, LLC888-315-0220 Option 1Click for website
Central Telecom Long Distance, Inc.1-888-988-9818Click for website
CenturyLink Communications LLC1-866-642-0444Click for website
Certain Communications Corporation310-933-6500Click for website
Charter Fiberlink MA-CCO, LLC866-207-3663Click for website
CherryRoad Technologies, Inc.978-402-7802Click for website
Choice One Communications of Massachusetts, Inc.800-600-5050Click for website
City of Westfield, Gas and Electric Department413-572-0100Click for website
Clear Rate Communications, Inc.877-877-4799Click for website
Cloud Computing Concepts, LLC1-877-247-4949Click for website
Cogeco US Enterprise, LLC888-536-9600Click for website
ComApp Technologies LLC866-800-2802Click for website
Comcast Phone of Massachusetts, Inc.800-633-4266Click for website
Communications Network Billing, Inc.800-407-2047Click for website
ComTech21 LLC877-312-5564Click for website
Consumer Telcom, Inc. Click for website
Convergia, Inc.800-293-7778Click for website
Conversent Communications of Massachusetts, Inc.800-600-5050Click for website
Cooperative Communications, Inc.800-833-2700Click for website
Cox Rhode Island Telcom, LLC401-383-2000Click for website
CRC Communications, LLC833-683-5261Click for website
Crexendo Business Solutions, Inc.866-621-6111Click for website
Crocker Communications, Inc.866-633-1213Click for website
Crown Castle Fiber LLC1-855-913-4237Click for website
CTC Communications Corp.800-600-5050Click for website
Custom Network Solutions, Inc.800-809-0663Click for website
Custom Teleconnect, Inc.800-672-9080Click for website
DCT Telecom Group, LLC Click for website
DeltaCom, LLC800-600-5050Click for website
Dense Air Networks US, LLC833-405-0301Click for website
dishNET Wireline, LLC855-347-3474Click for website
DSCI Corporation, see name change DSCI, LLC866-438-3724Click for website
DSCI LLC877-344-7441Click for website
DSI-ITI LLC877-650-4249Click for website
Dynalink Communications, Inc.212-352-7307Click for website
EarthGrid PBC833-327-8441Click for website
Easton Telecom Services, LLC800-222-8122Click for website
Electric Lightwave, LLC800-727-8484Click for website
Enhanced Communications Group LLC918-333-8833Click for website
Enhanced Communications Network, Inc.800-354-1606Click for website
EnTelegent Solutions, Inc.800-975-7192Click for website
ExteNet Asset Entity LLC1-866-892-5327Click for website
ExteNet Systems LLC866-892-5327Click for website
ExteNet Telecom Solutions, Inc.888-436-3690Click for website
FairPoint Business Services LLC844-968-7224Click for website
First Choice Technology, Inc.888-598-0672Click for website
First Communications LLC800-274-1015Click for website
FirstLight Fiber, Inc.888-832-4976Click for website
Fitchburg Fiber LLC978-696-8699Click for website
France Telecom Corporate Solutions LLC866-280-3726Click for website
Frontier Communications of America, Inc.800-727-1653Click for website
Fusion Cloud Services, LLC888-301-1721Click for website
Fusion LLC888-301-1721Click for website
G3 Telecom USA, Inc.888-315-3050Click for website
Gardner American Legion, Post 129 Click for website
Gateway Infrastructure LLC888-201-4339Click for website
GC Pivotal, LLC1-866-226-4244Click for website
Global Crossing Local Services Inc.800-414-1973Click for website
Global Crossing Telecommunications, Inc.800 249 4672Click for website
Global Tel*Link Corporation877-650-4249Click for website, LLC480-505-8877Click for website
Granby Telephone LLC833-683-5261Click for website
Granite Telecommunications, LLC866 847-5500Click for website
Grasshopper Group, LLC800-820-8210Click for website
Hypercube Networks LLC866-905-1735Click for website
IDT America Corp.800-889-9126Click for website
Impact Telecom, Inc.*866-557-8920Click for website
inContact, Inc.866-541-0000Click for website
iNET Communications, LLC1-855-463-8662Click for website
Inmark, Inc.800-460-0556Click for website
Inmate Calling Solutions, LLC888-506-8407 or 800-661-3845Click for website
Integrated Services, Inc.800-441-5395Click for website
Intelletrace, Inc.800-618-5877Click for website
Intellifiber Networks, LLC800-600-5050Click for website
International Telcom, Ltd. Click for website
Intrado Safety Communications, Inc.877-262-3775Click for website
IPC Network Services, Inc.888-286-2343Click for website
IRU Networks, LLC888-250-2111Click for website
KDDI America, Inc.888-833-2678Click for website
Last Mile Solutions LLC774-641-6080Click for website
LCR Telecommunications LLC877-554-7958Click for website
LDMI Telecommunications, LLC800-347-1991Click for website
Legent Comm LLC866-469-0829Click for website
Level 3 Communications, LLC814-260-2000Click for website
Level 3 Telecom Data Services, LLC303-566-1000Click for website
Lightpath of New England LLC866-661-3434Click for website
Lightship Telecom LLC800-600-5050Click for website
Lingo Telecom LLC888-411-0111Click for website
Local Linx MA Inc.413-233-6016Click for website
Long Distance Access, Inc.866-818-6183Click for website
M.B.E. Coin Phone, LLC aka M.B.E Connect LLC Click for website
Magna5 LLC844-462-4625Click for website
Marathon Fiber Networks LLC617-451-6464Click for website
Massachusetts Local Telephone Company, Inc.888-248-MLTCClick for website
MassComm LLC800-600-5050Click for website
MCI Communications Services LLC800-624-5622Click for website
McLeodUSA Telecommunications Services, LLC800-600-5050Click for website
MClmetro Access Transmission Services LLC800-837-4966Click for website
MegaCLEC, Inc.508-646-0020Click for website
Merrimack Education Center, Inc.978-275-1600Click for website
Metropolitan Telecommunications of Mass, LLC800-876-9823Click for website
Mosaic Networx LLC866-724-2605Click for website
Netwolves Network Services LLC813-579-3224Click for website
Network Communications International Corp.888-230-4523Click for website
Network Innovations LLC1-888-450-2100Click for website
NetworkIP LLC877-638-7762Click for website
Neutral Tandem-Massachusetts LLC888-682-6336Click for website
New Horizons Communications Corp.781-290-4600 or 866-241-9423Click for website
NextGen Communications, Inc800-959-3749Click for website
Norstar Telecommunications, LLC Click for website
North Atlantic Networks LLC508-339-0482Click for website
NOS Communications, Inc.(888) 569-4667Click for website
Onepath Systems, LLC877-663-7971Click for website
ONLINE SAVINGS, INC.877-271-5582Click for website
Onvoy LLC800-933-1224Click for website
OpenCape Corporation888-253-2561Click for website
OPEX Communications, Inc.888-577-7266Click for website
Otelco Telecommunications, LLC800-286-4600Click for website
PacOptic Networks, LLC888-722-8188Click for website
PaeTec Communications, LLC800-600-5050Click for website
Pay Tel Communications, Inc.800-729-8355Click for website
Peerless Network of Massachusetts LLC888-380-2721Click for website
PEG Bandwidth MA, LLC610-660-4910Click for website
PNG Telecommunications, Inc.800-860-9495Click for website
Public Communications Services, Inc.888-350-1000Click for website
Pulse Telecom, LLC502-327-0055Click for website
QuantumShift Communications, Inc.888-994-1000Click for website
RCLEC, Inc.1-888-898-4591 or 877-888-3156Click for website
RCN Telecom Services of Massachusetts, LLC1-800-746-4276Click for website
Reduced Rate Long Distance, LLC866-367-7753Click for website
Reliable Air-Vac, Inc.800-718-5192Click for website
Reliant Communications, Inc.800-810-2199Click for website
Richmond Telephone Company LLC413-698-2255Click for website
RingSquared APC LLC800-686-2377Click for website
SBC Long Distance, LLC Click for website
Securus Technologies, Inc.800-559-1535Click for website
Sentinel Tree Telephone Company, Inc.508-299-8013Click for website
Smart Choice Communications, LLC800-217-3096Click for website
Smart Communications Holdings, Inc.1-888-843-1972Click for website
Spectrotel of New England, LLC888-773-9722Click for website
SQF LLC1-844-484-5766Click for website
SQF, LLC1-844-484-5766Click for website
Stratus Networks, Inc.1-866-822-2246Click for website
Streamline Networks, Inc.857-221--8960 Ext. 4Click for website
Synergem Technologies, Inc.336-808-0911Click for website
Taconic TelCom Corp844-968-7224Click for website
Taconic Telephone Corporation844-968-7224Click for website
Talk America LLC800-347-1991Click for website
TC Systems, Inc.888-227-3824Click for website
TDS Long Distance Corporation1-888-CALL-TDSClick for website
Telco Experts, LLC1-800-795-6200Click for website
Telecom Management, Inc.888-492-6878Click for website
Teleport Communications America, LLC888-227-3824Click for website
Televergence Solutions, Inc.800-706-5199Click for website
Teliax, Inc.888-483-5429Click for website
Telmex USA LLC aka Claro Enterprise Solutions954-517-7300Click for website
Telrite Corporation678-202-1292Click for website
Time Clock Solutions, LLC855-753-0941Click for website
Time Warner Cable Business LLC877-636-3278Click for website
Time Warner Cable Information Services (Mass.) LLC866-321-CABLE (2225) or 518-24Click for website
Touchtone Communications, Inc.800-266-4006 or 866-727-3323Click for website
TowardEX Technologies International, Inc.844-290-8939Click for website
Twin City Capital, LLC877-271-5582Click for website
U.S. South Communications, Inc.800-305-6009Click for website
U.S. Telecom Long Distance, Inc.888-299-6618Click for website
Uniti National LLC877-652-2321Click for website
Universal Telephone Services Corp. aka Emerald Isle Merchant Services, Inc.800-880-5157Click for website
US Signal Company LLC866-274-4625Click for website
USA Digital Communications, Inc.800-598-7949Click for website
Vanco US, LLC312-881-4731Click for website
Velocity, A Managed Services Company, Inc.866-868-9983Click for website
Verizon Long Distance LLC800-837-4966 / 800-VERIZONClick for website
Verizon New England, Inc.800-837-4966Click for website
Verizon Select Services, Inc.800-483-6222Click for website
Vodafone US, Inc.1-855-377-8360Click for website
Voicecom Telecommunications, LLC888-554-7835Click for website
Wholesale Carrier Services, Inc.888-940-5600Click for website
Wide Voice, LLC866-508-9020Click for website
WilTel Communications LLC Click for website
WiMacTel, Inc888-476-0881Click for website
Windstream New Edge, LLC866-624-3505Click for website
Working Assets Funding Service, Inc.800 788-0898Click for website
X2Comm, Inc.866-330-4322Click for website
XO Communications Services LLC888-575-6398Click for website
YMax Communications Corp.888-624-4222Click for website
Zayo Group, LLC866-236-2824Click for website
Zayo Northeast, LLC866-364-6033Click for website