Telecommunications in Barbican |
| Arbinet The Exchange Ltd | 020 7377 9449 | | 12-18 Paul Street, London, EC2A 4JH |  Map & Directions |
| Itouch Ltd | 020 7613 6000 | | Avalon House, 57-63 Scrutton Street, London, EC2A 4PF | | Map & Directions |
| I D T | 020 7549 6000 | | Princes House, 93-95 Gresham Street, London, EC2V 7NA | | Map & Directions |
| Packet Exchange | 020 7377 4130 | | 11a Curtain Road, London, EC2A 3LT | | Map & Directions |
| First Technology | 020 7600 5255 | | Royex House, 5 Aldermanbury Square, London, EC2V 7HR | | Map & Directions |
| Advanced Telecom Services | 020 7608 7777 | | Sekforde Court, 213 St. John Street, London, EC1V 4LY | | Map & Directions |
| Digital Mail Ltd | 020 7060 2000 | | 70-74 City Road, London, EC1Y 2BJ | | Map & Directions |
| Spacetel Ltd | 020 7253 5516 | | 15 Bowling Green Lane, London, EC1R 0BD | | Map & Directions |
| Premier Conferencing | 020 7890 7000 | | 120 Aldersgate Street, London, EC1A 4JQ | | Map & Directions |
| A T & T Communications Ltd | 020 7880 6880 | | Mitre House, 160 Aldersgate Street, London, EC1A 4DD | | Map & Directions |
| National Telecable Ltd | 020 7638 2344 | | 40 Bowling Green Lane, London, EC1R 0NE | | Map & Directions |
| Highspeed Office | 020 7847 4500 | | Epworth House, 25 City Road, London, EC1Y 1AA | | Map & Directions |
| Gains International Ltd | 020 7550 8888 | | Bucklersbury House, Walbrook, London, EC4N 8EL | | Map & Directions |
| Vodafone Global Content Services | 020 7212 0000 | | Shell Mex House, 80 Strand, London, WC2R 0RJ | | Map & Directions |
| Aic Telecom Ltd | 020 7437 7123 | | 12-13 Little Newport Street, London, WC2H 7JJ | | Map & Directions |
| Worldcom | 020 7675 5000 | | Fox Court, 14 Gray's Inn Road, London, WC1X 8HN | | Map & Directions |
| Bulldog Communications | 020 7164 1000 | | 26 Red Lion Square, London, WC1R 4HQ | | Map & Directions |
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