- Open Mobile Alliance
- Openet Telecom
- OPM American Tower
- Opptel
- Opt Inc
- Optel Associates
- Optical & Telecommunications
- Optical Cabling Systems
- Optical Wireless Link
- Optimum Communications Corp
- Optisave LLC
- Opusource Inc
- Oriental Telecom
- Orion Communications Inc
- Orion Telecommunications Corp
- Orius Telecom
- Orius Telecommunication
- Orius Telecommunication Svc
- Orius Telecommunication Svc
- Orius Telecommunication Svc
- Orius Telecommunications
- Orius Telecommunications Svc
- Orius Telecommunications Svc
- Orius Telecommunications Svc
- Orlando Metro CCN
- Osceola Telecom
- Oscilloquartz
- Ouellet Communications Svc Inc
- Out Of Warranty Svc Co
- Ovation Telecommunications
- P B Telecom
- P C Communications
- P C Phone Inc
- P C Phone Inc
- P C Telecom Corp
- P C Telecom Group
- P C Telecommunications
- P C Telecommunications
- P G & H Communications
- P G Mc Callum
- P J White Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pac-West Telecomm Inc
- Pacific Bay Pay Station
- Pacific Management Co
- Pacific States Communications
- Pacific Tel-Data
- Pacific Telecom
- Pacific Telecom & Computer Svc
- Pacific Telecom Management Grp
- Pacific Telecom Svc LLC
- Pacific Telecom Svc LLC
- Pacific Telecommunications
- Pacific Telemanagement Svc
- Packet Telecom Solutions
- Pacsat
- Pacwest Telecomm
- Pacwest Telecomm
- Pae Tec Communications
- Pae Telecom
- Paetec
- Paetec
- Paetec Communications
- Page One
- Page Plus
- Paige Communications Corp
- Pak Telecom
- Pak Telecom
- Palladium Consulting Group LLC
- Palm One Inc
- Palm Source Inc
- Palmetto Net
- Palmetto Net
- Paloma Group Inc
- Panamsat
- Panasonic
- Panda Global Communications
- Pangea Tech Inc
- Panhandle Telecommunication
- Paniaguas Enterprises Inc
- PAO Enterprises
- PAO Enterprises
- PAO Enterprises
- Paquette Enterprises
- Paquette Telecom
- Paradigm Telecom
- Paradise Telecommunications
- Parallel Technologies
- Paramount Designs Inc
- Park Cities Telecom
- Parker Communications
- Parlance Corp
- Partner Communications
- Partner Communications
- Partner Mgmt Group
- Partners Communications Inc
- Partners Datacom
- Pate Telecommunications
- Patrick Allan Telephone
- Patriot Enterprises
- Patriot Power & Telecom Syst
- Patriot Systems Inc
- Patron Communications Of MD
- Paul Johnson Assoc Inc
- Pax Telecom Consulting Inc
- Pax TV
- Pay It Back Check Cashing
- Pay Smart America
- Pay-Phone Management Inc
- Pay-Tel Of America
- Payphone
- Payphone
- Payphone
- Paytel
- Paytel
- PC Telecommunications
- PC2 Telecom
- Peachtree Communications
- Peachtree Communications
- Peachtree Telecommunications
- Peacock Associates Inc
- Peak Communications
- Peco II Global Svc Inc
- Peninsula Communications
- Peninsula Prewire
- Peninsula Prewire
- Pentecostal Church Of God
- Peoples Rural Telephone Co-Op
- Peoples Telecommunications
- Peoples Telecommunications
- Peoples Telecommunications LLC
- Peoples Telecommunications LLC
- Peoplesupport Inc
- Perceptionist Inc
- Perfect Phones
- Performance Cabling Systems
- Performance Communication Svc
- Performance Resource Group
- Performance Technologies Inc
- Personal Communications
- Personal Management Agency
- Pertel Communications Corp
- Peterson Communications Group
- Peterson Datacom Group
- Phase Three Communications
- Phe Telecom
- Phenix Communications Inc
- Phil Wood Enterprises Inc
- Phil Wood Enterprises Inc
- Phil's Phones Plus
- Phillips Telecommunication
- Philyaw Communications
- Phoenix Comm-Tel Inc
- Phoenix Comm-Tel Inc
- Phoenix Communications
- Phoenix Network
- Phoenix Telecom
- Phoenix Telecom
- Phoenix Telecommunications
- Phoenix Telecommunications
- Phone & Wireless
- Phone & Wireless
- Phone All
- Phone Bill Auditing
- Phone Booth Systems
- Phone Cards On Demand
- Phone Center
- Phone Center
- Phone Connection
- Phone Connection
- Phone Connection
- Phone Consultant
- Phone Corp Inc
- Phone Craft Inc
- Phone Depot
- Phone Doctor Of Delaware
- Phone Expert
- Phone Expert
- Phone Guy
- Phone Guy
- Phone Guys Inc
- Phone Jacks Installed By
- Phone Man
- Phone Man
- Phone Man Marc
- Phone Mart
- Phone Mart
- Phone Master
- Phone Meister
- Phone Needs
- Phone Pros
- Phone Solutions
- Phone Solutions Inc
- Phone Store
- Phone Store
- Phone Store & More
- Phone Store Communications
- Phone Systems Plus
- Phone Tel
- Phone Tel
- Phone Tel Technologies I
- Phone Tel Technologies Inc
- Phone Tel Technologies Inc
- Phone Tel Technologies Inc
- Phone Tel Technologies Inc
- Phone Ware Inc
- Phone World Communications
- Phone World Inc
- Phonecheck
- Phonechip Inc
- Phones 4 Less
- Phones For All
- Phones Plus
- Phones USA
- Phonetel Technologies Inc
- Phonetel Technologies Inc
- Phoneworks International
- Phoneworks International
- Phylogy Inc
- Pico Multi Svc Inc
- Pierce Telephone Co
- Pilot Communications
- Pine Tree Networks
- Pingpong Voip Communications
- Pingtel Corp
- Pinnacle Communications
- Pinnacle Communications
- Pinnacle Telecom Inc
- Pinnacles Telephone Co
- Pioneer Communications
- Pioneer Telecommunications
- Pioneer Telephone
- Pioneer Telephone
- Pisgah Telecommunications
- PKB Telecom Inc
- Planet Telecom & Technologies
- Planetfax
- Plant Telecommunications
- Plateau Telecommunications
- Platform Experts
- Platinam Telecom Inc
- Platinum Communications
- Platinum Networks Inc
- Platinum Paging
- Platinum Telecommunications
- PLS Group
- Plymouth Telecom
- PMC
- PMP Of Minnesota
- PMT Inc
- PMT Inc
- PMT Project Mutual Telephone
- PNG Telecommunications
- PNG Telecommunications
- Point Connections Inc
- Point One Telecom Inc
- Point One Telecom Inc
- Point One Telecom Inc
- Point One Telecommunications
- Point Telecom Solutions Inc
- Polaris Tower Inc
- Polycom Inc
- Polycom Inc
- Pop Shoppe
- Pop Shoppe II
- Pop Telecom
- Popp Industries Inc
- Portel Communication Corp
- Portfolio Network Svc
- Portraits On The Way
- Positron Inc
- Positron Inc
- Posner Telecommunications
- Posner Telecommunications
- Posner Telecommunications
- Posner Telecommunications
- Posner Telecommunications
- Posner Telecommunications
- Posner Telecommunications
- Possibility Systems Assoc
- Postive Telecommunications
- Power Dsine Inc
- Ppg Technologies
- PPL Prism LLC
