La tabella sottostante riporta un elenco delle società operative del gruppo Colt (la cui capogruppo, Colt Group Holdings Limited, una società domiciliata in Inghilterea è una holding pura non operativa).
I clienti e i fornitori di una delle società del gruppo Colt (o altra controparte giuridica di una di esse) potranno trovare gli estremi della società con la quale hanno posto in essere rapporti contrattuali sul contratto stesso o sul modulo di ordinazione. Gli estremi delle singole società interessate sono inoltre indicati sugli ordini di acquisto, le fatture, gli estratti conto e altra documentazione.
| Colt Technology Services GmbH | Austria | Kärntner Ring 10-12 A1010 Vienna Austria | +43 1 20 5000 | FN 175379K | ATU 45766309 |
| Colt Technology Services NV | Belgium | Culliganlaan 2H 1831 Diegem Belgium | +32 2 790 1616 | VAT BE 0461.455.625 RPR Brussels | BE 0461455625 |
| Lumen Technologies Belgium SA | Belgium | Av. L. Grosjean 2, 1140 Evere, Belgium | 0462.823.523 | BE 0462823523 | |
| Colt Technology Services GmbH - Branch Bulgaria | Bulgaria | 14, Lavski Rid Street, ground floor, office 11, 1680 Sofia, Bulgaria. | +44 20 7390 3900 | 205565332 | BG205565332 |
| Colt Technology Services GmbH - Branch Zagreb - for telecommunication services | Croatia | Nova cesta 60, Zagreb, Croatia | +44 20 7390 3900 | OIB number: 59098560040 MSB number: 081235064 | HR59098560040 |
| Colt Technology Services GmbH odštěpný závod | Czech Republic | Klimentská 1216/46, Nové Město, 110 00 Prague 1, Czech Republic | +44 20 7390 3900 | 079 32 707 | CZ684737023 |
| CenturyLink Communications CZ s.r.o | Czech Republic | Klimentská 46, č.p. 1216, 110 02 Praha 1, Czech Republic | 271 84 099 | CZ27184099 | |
| Colt Technology Services A/S | Denmark | Borgmester Christiansens Gade 55 2450 Copenhagen SV Denmark | +45 70 21 23 30 | 25760352 | DK 25 76 03 52 |
| Lumen Technologies Denmark ApS | Denmark | Sydvestvej 100, 2600 Glostrup, Denmark | 21264644 | DK 21 26 46 44 | |
| Colt Technology Services | England & Wales | 20 Great Eastern Street London EC2A 3EH United Kingdom | +44 20 7390 3900 | 2452736 | GB 645 4205 50 |
| Lumen Technologies Europe Limited | England & Wales | 260-266 Goswell Road, London, EC1V 7EB, United Kingdom | 3728783 | GB740593236 | |
| Lumen Technologies UK Limited | England & Wales | 260-266 Goswell Road, London, EC1V 7EB, United Kingdom | 2495998 | GB744433045 (EORI for Northern Ire. XI744433045000) | |
| Colt Technology Services Oy | Finland | Accounting Services Tilimatic Mannerheimintie 16 A 3 Helsinki 00100 Finland | +46 8 781 8000 | 1776465-6 | FI 17764656 |
| Colt Technology Services | France | 23-27 rue Pierre Valette 92247 Malakoff Cedex France | +33 1 70 99 55 00 | B402 628 838 | FR 404 0 262 883 8 |
| Lumen Technologies France S.A.S | France | Le Capitole, 55 Avenue des Champs Pierreux, 92000 Nanterre | 420 989 154 RCS NANTERRE | FR 234 2 098 915 4 | |
| Colt Technology Services GmbH | Germany | Gervinusstrasse 18-22 60322 Frankfurt/Main Germany | +49 69 56606 0 | HRB 46123 | USt.-IdNr. DE 197 498 400 |
| Lumen Technologies Germany GmbH | Germany | Rüsselsheimer Straße 22, 60326 Frankfurt am Main, Germany | HRB 43850 | DE 195 395 583 | |
| Colt Technology Services Limited (formerly KVH Co. Ltd.) | Hong Kong | Suite 3619-20, PCCW Tower, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong. | +852 3725 0068 | 1860574 | |
| Colt Technology Services GmbH Hungarian Branch | Hungary | H-1068 Budapest, Dzsa Gyrgy t 84/B. | +44 20 7390 3900 | 01-17-001238 | HU26732668 |
| Colt Technology Services Limited | Ireland | 15-16 Docklands Innovation Park East Wall Road Dublin 3 Ireland | +353 1 436 5900 | 324439 | IE 63 444 39 R |
| Lumen Technologies PEC Ireland Limited | Ireland | Riverside One, Sir John Rogerson's, Quay, Dublin 2, D02 X576, Ireland | 297581 | IE 82 975 81 F | |
| Lumen Technologies Israel Ltd. | Israel | 7 Rival Street. Tel Aviv- Yafo 6777840 Israel | 515263804 | 515263804 | |
| Colt Technology Services S.p.A. | Italy | Viale Vincenzo Lancetti 23 20158 Milano, Italia | +39 02 30 333 1 | 12286350157 | IT 122 863 501 57 |
| Lumen Technologies Italia Srl | Italy | Via San Giusto, 5I- 20153 Milan, Italy | 12465050156 | IT12465050156 | |
| Colt Technology Services Co., Ltd. | Japan | Izumi Garden Tower, 27F 1-6-1, Roppongi, Minato-ku Tokyo, 106-6027, Japan | +0120-525-135 | 0104-01-039799 | |
| Colt Technology Services Ltd., | Korea | 16F, 83 Uisadang-daero, Yeongdeungpo-gu, Seoul 07325, Korea. | +82-1661-4801 | 110114-0109733 | 214-88-92771 |
| CenturyLink Europe B.V. | The Netherlands | Stekkenbergweg 4, 1105AJ Amsterdam, The Netherlands | 34117150 | NL 808121650 B 01 | |
| Colt Technology Services B.V. | The Netherlands | Van der Madeweg 12-14a 1114 AM AMSTERDAM-DUIVENDRECHT Postbus 94014 1090 GA AMSTERDAM | +31 20 888 2020 | 33303165 | NL 806825790 B 01 |
| Lumen Technologies NL B.V. | The Netherlands | Stekkenbergweg 4 – Amsterdam, 1105 AJ The Netherlands | 33299249 | NL 807110930 B 01 | |
| Colt Technology Services AS | Norway | c/o EconPartner AS, Dronning Mauds gate 15, 0250 Oslo, Norway | +45 70 21 23 30 | 982 792 924 | 982 792 924 |
| Lumen Technologies Norway AS | Norway | Okernveirn 121, 0579 Oslo | 981 195 361 | 981 195 361 MVA | |
| Colt Technology Services GmbH (spółka z ograniczoną odpowiedzialnością) Oddział w Polsce | Poland | Ul. Piękna 18, 00-549 Warszawa, Poland. | +44 20 7390 3900 | KRS : 0000786057 | PL1080023327 |
| Lumen Technologies Poland sp. z o.o. | Poland | ul. Emilii Plater 53, 00-113, Warsaw, Poland | 396199 | PL7010314979 | |
| Colt Technology Services, Unipessoal Lda | Portugal | Estrada da Outurela 118 – Edificio B 2790 – 114 Carnaxide Portugal | +351 21 12000 00 | 505289385 | PT 505 289 385 |
| Colt Technology Services RO S.R.L | Romania | 50, Calea Dumbrăvii, Sibiu, Sibiu County, Romania | +40 369 229 200 | RO 14613218 | RO 14613218 |
| Lumen Technologies Romania S.R.L. | Romania | 313 - 315, Barbu Vacarescu Street, 5th floor, Bucharest, 2nd District, 020272, Romania | RO 22164560 | RO 22164560 | |
| Colt Technology Services, Pte Ltd. (Formerly KVH Pte Ltd.) | Singapore | 8 Temasek Boulevard #17-01, Suntec Tower Three Singapore (038988) | +65 800 852 3528 | 201003217K | |
| Colt Techonology Services GmbH, organizačná zložka Slovensko | Slovakia | Mudroňova 51, Bratislava – mestská časť Staré Mesto, 811 03, Slovakia | +44 20 7390 3900 | 52 363 279 | SK4120171946 |
| Group Lumen South Africa (PTY) Ltd. | South Africa | Central Office Park No.4, 257 Jean Avenue, Centurion, Gauteng, 0157, South Africa | 2012 / 025797 / 07 | 4030264289 | |
| Colt Technology Services, S.A.U. | Spain | C/Telémaco 5 28027 Madrid Spain | +34 91 789 9000 | M-186178 | ES A81626905 |
| Lumen Technologies Iberia S.A. | Spain | Calle Acanto 22, 10th Floor 28045 Madrid, Spain. | A82440173 | ES A82440173 | |
| Colt Technology Services AB | Sweden | PO Box 3458, Luntmakargatan 18, SE-10369 Stockholm | +46 8 781 8000 | 556576-8958 | SE 556 576 8958 01 |
| CenturyLink Communications Sweden AB | Sweden | Olof Palmes gata 29, 4th Floor, 111 22 Stockholm, Sweden | 556624-1195 | SE556624119501 | |
| Colt Technology Services AG | Switzerland | Albulastrasse 47 8048 Zürich Switzerland | +41 58 560 16 00 | CHE-106.834.429 | CHE-106.834.429 MWST |
| Lumen Technologies Switzerland AG | Switzerland | Aargauerstrasse 10, 8048 Zürich, Switzerland | CHE 101.287.129 | CHE-101.287.129 | |
| Lumen Teknoloji Hizmetleri Limited Şirketi | Turkey | Reşitpaşa Mahallesi, Eskibüyükdere Caddesi, Park Plaza Apt. No:14/24 Kat:10, Sarıyer / İstanbul, Turkey | 750586-0 | 3960630673 | |
| Colt US Internet Corp | Delaware, USA | c/o Corporation Service Company, 2711 Centerville Road, Suite 400, Wilmington, Delaware 19808, USA | 3102974 | EIN-04-3500566 |
