1.951 ausgewählt
- Nicht ausgefüllt
- MCN
- Median Telecom
- Medion Mobile
- Méditel
- Megaphone Telecom
- Menatel
- Merchantrade Asia Sdn. Bhd.
- Merci Card International
- Mercury
- Mercury Communications
- Mercury Teleservice
- Merkur Telekom Ltd.
- Merrick
- Meta
- Metro
- MGT
- MGTS - Moscow
- Michigan Bell
- Migros mobile
- Millecom
- Millennium
- Minolta
- Minut
- Minute Max
- Minutissime 9 Telecom
- Minutissime Telecom
- Miracle Planet
- Mitelco
- Mkitra
- MLS TM
- MM Card
- MMT
- Mobika
- Mobiklik
- Mobikom
- Mobil Halo
- Mobil Oil
- Mobilaire
- Mobile 8
- Mobile Ghana
- Mobile Malaysia
- Mobile Telecommunications Company
- Mobile Telephone Networks
- Mobilkom
- MobiLux
- MobiNed
- MobiNil
- Mobistar
- Mobitel
- Moldcell
- Moldtelecom
- Monaco Telecom
- Mondex
- Monétel
- MoneyGramm
- Mongolian Telecommunications Company
- Monotel
- More Minutes
- Moreminutes
- Moscow City Telephone Network
- Moscow Electrosvyaz
- Movicom Bell South
- Movilnet
- Movistar
- Mox Telecom AG
- MTC
- MTML
- MTN
- MTS
- Multi
- Multi-Acces AG
- Mundi
- Mundi Telecom
- Munditel
- Mundo
- Mundo TMBC
- Mundophone
- Mundophone Telekommunikationsges. mbH
- My Beach
- My Card
- my.t mobile
- My.t.mobile
- Myanma Posts and Telecommunications
- Myanmar Posts and Telecommunications
- N-Tel
- N-Wave Telecoms
- N.C.S.
- N9uf telecom
- Na *777
- NasionCom
- Nationaal Chipcard Platform
- National Module Systems S.A.
- National Networks
- Nativa
- Nawras
- NBT TCO Toque Cartäo
- NCC
- NCT
- Nederlandse banken
- NeoPhone
- Nepal Telecommuniations Corporation
- Net 263
- Net Tel
- Net-Up
- Net2Phone
- Netnet
- Netsource
- Nettel
- Network Srvices
- Networks Around the World
- Neuf Télécom
- New Call
- New Media Telecommunications.inc
- New World Cards
- New World Telephone
- New York Telephone
- Nex Telecom
- Nexia
- Next 3
- Nextel
- Niagara Waterfals Communications
- Niagra Falls
- Nigerian Telecommunications Limited
- Nile Telecom
- Nippon Telegraph and Telephone Corporation
- No Problem
- Non Stop
- Nondas
- Norfolk Telecom
- Nortel
- North American Telephone - PTA
- Novacard
- Novis
- Novobirsk
- Nowtel Global
- NST
- NTE
- NTI
- NTT
- Nufon
- Number One
- NuStar Communications
- NYNEX
- N° 2
- O12
- O2
- Oasis
- Oberthur
- Oblio Telecom, Inc.
- Office des Postes et Télécommunications du Benin
- Office des Postes et Télécommunications du Comores
- Office des Postes et Télécommunications du Djibouti
- Office des Postes et Télécommunications du Gabon
- Office des Postes et Télécommunications du Niger
- Office des Postes et Télécommunications du Nouvelle-Calédonie
- Office des Postes et Télécommunications du Polynésie française
- Office des Postes et Télécommunications du Togo
- Office National des Postes et Télécommunications
- Office National des Télécommunications
- OK
- OK Telecom
- Okapi
- Okatel
- Ole
- Oman Mobile
- Oman Telecommunications Company
- Omnicall
- Omnicom
- Omnicom GTS
- OmniTel
- On Air Telecom
- On Time
- Onatel
- Onbekend
- One
- One 2 One
- One World
- One.Card
- One.Tel
- Onion
- OniTelecom
- Online Telecom
- Online-Game
- Ono
- OnPoint Prepaid Telecom
- ONPT
- Onse
- Onse Telecom
- Open Line
- Optus
- Orange
- Orange Mauritius
- Orbisline
- Orbitel
- Orga
- OriënTel
- Orion Telecom
- Ortel
- Ortel Mobiel
- Ortel Mobile
- Österreichische Post- und Telegraphenverwaltung
- OTC
- OTC international
- OTE
- OTE net
- OTO
- OufiTel
- Outremer Telecom
- Outremer Telecom Maurice
- Ozemail
- P & J Promotions
- P&T
- P&T Luxemburg
- P.T.I.
- Pacific Bell
- Pacificnet
- PacificTelecard
- Paegas
- PakTelecom
- Palau National Communications Corp.
- Palestine Telecommunications Company p.l.c.
- Palme d'Or
- PanaFon
- Pangea
- Pannon
- Parkstad Limburg Stadion
- Passport 2 Africa
- Patco
- Patient Line
- Patria
- Pay Tel
- Payphone
- PCC
- PCC Cyberlight
- PCCW
- PCCW Mobile
- PCS Wireless Services
- Peepshow Amsterdam
- Pelikom
- Penitentiaire Inrichtingen Overmaze
- Pennytel Communications Sdn. Bhd.
- Peoplecall
- PePtalk
- Perumtel
- PGC, Inc.
- PGM, Inc.
- Phenix Telecom
- Philippine Digest
- Philips
- Phoenix Comms