| Column 1 | Column 2 |
|---|
| ABS Telecom PLC (formerly known as Advanced Business Services Ltd) | 18 .12.1996 |
| Alpha Telecom Limited | 13.10.1998 |
| American Telemedia Limited | 28.04.1997 |
| AT & T—Unisource Communications Services (UK) Limited | 15.06.1999 |
| Axxon Telecom Limited | 09.12.1998 |
| Belgacom UK Limited | 13.10.1998 |
| BSI ACCESS UK Limited | 15.06.1999 |
| Call-Net (UK) Limited | 13.10.1998 |
| Carrier One Ltd | 08.03.1999 |
| Cherry Communications UK Limited | 05.06.1997 |
| City Telecom (HK) Limited | 09.12.1998 |
| Communicorp (UK) Ltd | 18.12.1996 |
| Cyberlight Europe PLC | 13.10.1998 |
| Data Marine Systems Limited | 05.08.1998 |
| DirectNet Telecommunications UK Limited | 27.04.1998 |
| Drive Memory Limited | 15.01.1999 |
| Esat Telecommunications (UK) Ltd | 05.02.1997 |
| Eurotunnel Telecommunications Limited | 05.08.1998 |
| FaciliCom International (UK) Ltd | 18.12.1996 |
| First Telecom PLC | 21.04.1997 |
| Frontel Communications Limited | 14.10.1997 |
| GC Global Communications Limited | 28.06.1999 |
| GN Great Northern Gateway Limited A/S | 27.04.1998 |
| Ibercom Limited | 05.08.1998 |
| IBSC Limited | 15.06.1999 |
| ICO Services Limited | 17.03.1999 |
| IDT Global Limited | 14.10.1997 |
| IFC Global (UK) Limited | 08.03.1999 |
| INCOM (UK) Ltd | 18.12.1996 |
| International Optical Network Limited | 09.12.1998 |
| International Telecom PLC | 05.08.1998 |
| International Telecommunications Group Inc. | 15.06.1998 |
| Interoute Networks Ltd | 18.12.1996 |
| ITG (UK) Ltd | 18.12.1996 |
| IXNET UK Limited | 18.12.1996 |
| Japan Telecom UK Limited | 09.12.1998 |
| Jersey Telecoms | 09.12.1998 |
| LCI Telecom UK Limited | 30.12.1997 |
| LDI Communications Ltd | 18.12.1996 |
| Net.Net Ltd | 18.12.1996 |
| Netkonect Communications Limited | 01.06.1999 |
| NETs Limited | 05.08.1998 |
| North American Gateway Limited | 30.12.1997 |
| NTT Europe Limited | 13.10.1998 |
| o.tel.o communications Limited | 27.04.1998 |
| Pacific Gateway Exchange (UK) Ltd | 18.12.1996 |
| Pantheon Telecom (UK) Limited | 11.06.1999 |
| PLDncompass Limited | 08.03.1999 |
| PrimeTEC (UK) Limited | 30.12.1997 |
| Primus Telecommunications Ltd | 18.12.1996 |
| PSINet Telecom UK Limited | 27.04.1998 |
| PT-1 Communications UK Limited | 05.08.1998 |
| Qwest Communications International Limited | 15.06.1998 |
| Singtel (Europe) Limited | 27.04.1998 |
| Skylight Holdings Inc. | 25.09.1997 |
| Sonic Telecommunications International Limited | 30.12.1997 |
| Spacetel International Ltd | 18.12.1996 |
| Star Europe Ltd | 18.12.1996 |
| StarGlobal Ltd | 01.06.1999 |
| Startec Global Communications UK Limited (formerly known as Startec Telecom Limited) | 27.04.1998 |
| Stentor Communications Limited | 27.04.1998 |
| Swisscom (UK) Limited | 08.03.1999 |
| Tele 2 Communications Services Limited | 08.03.1999 |
| Tele 2 Sweden Limited | 01.06.1999 |
| Tele Danmark A/S | 27.04.1998 |
| Telecom One Limited | 05.08.1998 |
| Telegroup UK Limited | 30.12.1997 |
| Teleport (Northern Ireland) Limited | 14.10.1997 |
| Teleport UK Limited (trading as Satellite Media Services) | 15.01.1999 |
| TGC UK Limited | 30.12.1997 |
| The JNT Association | 05.08.1998 |
| The Phone Company | 04.09.1997 |
| TotalTel International Inc. | 28.04.1997 |
| Transline Communications Limited | 27.04.1998 |
| USA Global Link (UK) Limited | 08.03.1999 |
| VIA Net Works UK Ltd | 25.06.1999 |
| Witley Communications Limited | 15.06.1998 |
| World-Link Inc. | 15.06.1999 |
| Worldport Communications Limited | 05.08.1998 |
| WorldxChange Communications Limited | 21.04.1997 |
| WXNET Limited | 15.01.1999 |