Every .dk domain whose website address (A record) is announced by AS8220, with the network's IPv6 and DNSSEC adoption and its observed prefixes. An autonomous system is the routing identity of a hosting company or ISP. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
Active .dk domains whose website address (A record) is announced by AS8220, counted once a day.
AS8220 is announced by COLT Technology Services Group Limited (Denmark) and currently hosts 129 .dk domains in our dataset — 0.01% of all scanned .dk domains. Across all our scans we have observed 42 unique IPv4 addresses on this network, and the domains currently sit in 19 IPv4 CIDR blocks covering roughly 393.5 thousand addresses of IPv4 space.
We have yet to observe any IPv6 (AAAA) hosting on this AS.
The network is part of the .dk zone's infrastructure too: 18 distinct nameservers and 31 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 53 of the domains hosted here (41.1%) validate as DNSSEC-secure — below the zone-wide average for domains with a web address, 70.5%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.
COLT Technology Services Group Limited announces 173 prefixes (154 IPv4, 19 IPv6) and reaches the internet through 10 upstream networks.
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.
| Network | Name | Domains | Power |
|---|---|---|---|
| AS64289 | Macarne.com | — | |
| AS10021 | KVH Co.,Ltd | — | |
| AS9607 | BBTower - BroadBand Tower, Inc. | — | |
| AS15576 | NTS workspace AG | — | |
| AS38001 | NEWMEDIAEXPRESS-AS-AP - NewMedia Express Pte Ltd | — | |
| AS5394 | UNIDATA S.p.A. | — | |
| AS48237 | MOBILY-AS Etihad Etisalat, a joint stock company | — | |
| AS19151 | BBO-1 - BroadbandONE, LLC | — | |
| AS8426 | Claranet Limited | 18 | |
| AS6730 | Sunrise GmbH | — | |
| AS852 | ASN852 - TELUS Communications Inc. | — | |
| AS51088 | A2B IP B.V. | — | |
| AS20912 | ASN-PANSERVICE Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C." | — | |
| AS42473 | AS-ANEXIA Anexia Cloud Solutions GmbH | — | |
| AS3360 | DXC US Latin America Corporation | — | |
| AS12637 | SEEWEB s.r.l. | — | |
| AS31027 | GlobalConnect A/S | 8,611 | |
| AS559 | SWITCH | — | |
| AS15699 | AS_ADAM Adam EcoTech, S.A | — | |
| AS34177 | Celeste SAS | — | |
| AS29222 | Infomaniak Network SA | 64 | |
| AS39923 | AS-UNIXSOLUTIONS Unix-Solutions BV | — | |
| AS8758 | Iway AG | — | |
| AS8218 | NEO-ASN Zayo Infrastructure France SA | — | |
| AS16347 | INHERENT ADISTA SAS | — | |
| AS47692 | Nessus GmbH | 61 | |
| AS396356 | Latitude.sh | — | |
| AS47720 | CIX-AS Cork Internet Exchange Limited | — | |
| AS3573 | Accenture LLP | — | |
| AS138840 | HSP-NAP-AS-ID PT. PARSAORAN GLOBAL DATATRANS - NAP | — | |
| AS25384 | DMDATA-AS Kyndryl Danmark ApS | 67 | |
| AS15695 | Expereo International BV | — | |
| AS59908 | ISLALINK BalaLink S.A. | — | |
| AS2152 | CENIC | — | |
| AS33965 | LITECOM AG | — | |
| AS15404 | COLT Technology Services Group Limited | — | |
| AS4229 | ZEN-NET - Zenlayer Inc | — | |
| AS34893 | Institut Straumann AG | — | |
| AS2907 | SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | — | |
| AS204764 | AS_MWS_EUR Kyndryl, Inc. | — | |
| AS21595 | Baxter Healthcare | — | |
| AS5662 | WBD-AS5662 - Turner Broadcasting System, Inc. | — | |
| AS48038 | CH-COOP Coop Genossenschaft | — | |
| AS15776 | International Business Machines of Belgium Ltd | — | |
| AS3296 | Societe Generale S.A. | — | |
| AS21070 | TotalEnergies SE | — | |
| AS3295 | Societe Generale S.A. | — | |
| AS5650 | FRONTIER-FRTR - Frontier Communications of America, Inc. | — | |
| AS6908 | DATAHOP Six Degrees Technology Group Limited | — | |
| AS6421 | TATA COMMUNICATIONS (AMERICA) INC | — | |
| AS14127 | Iland Internet Solutions Corporation | — | |
| AS3738 | SSB-ASN-3738 - State Street Bank and Trust Company | — | |
| AS20694 | Unknown | — | |
| AS201208 | GFIS GmbH | — | |
| AS16019 | Vodafone Czech Republic a.s. | — | |
| AS29802 | HVC-AS - HIVELOCITY, Inc. | 19 | |
| AS31747 | BlackRock Financial Management, Inc. | — | |
| AS141757 | ZJC-AS-AP - Zoho Japan Corporation | — | |
| AS31474 | MTV-UK-AS Viacom International Media Networks U.K. Limited | — | |
| AS7246 | BMS-AS - Bristol-Myers Squibb Company | 41 | |
| AS57533 | DELTICOM AG | 50 | |
| AS28674 | ITERGO-CORP-AS ITERGO Informationstechnologie GmbH | — | |
| AS15644 | Fresenius SE & Co. KGaA | — | |
| AS212225 | Roedl Audit GmbH Wirtschaftsprufungsgesellschaft | — | |
| AS58389 | SDI-NAP-AS-ID - PT Sumber Data Indonesia | — | |
| AS15543 | Oddo BHF SCA | — | |
| AS12025 | IMDC-AS12025 - Iron Mountain Data Center | — | |
| AS39702 | Unknown | — | |
| AS43861 | CIRCLEB-ASN Circle B B.V. | — | |
| AS31154 | TMME-AS Toyota Motor Europe SA | — | |
| AS10455 | LUCENT-CIO - Nokia of America Corporation | — | |
| AS197352 | Tinext Cloud SA | — | |
| AS48849 | Sika Informationssysteme AG | — | |
| AS8784 | Odigo SASU | — | |
| AS48284 | TELENET-AS SWU TeleNet GmbH | — | |
| AS5517 | CSL Computer Service Langenbach GmbH | 49 | |
| AS4764 | WIDEBAND-AS-AP - Aussie Broadband | — | |
| AS198333 | Unknown | — | |
| AS24771 | Iveco SpA | — | |
| AS25031 | NOVARTIS-CH Novartis AG | — | |
| AS198745 | ALSO-IS ALSO International Services GmbH | — | |
| AS33921 | Lebara Ltd | — | |
| AS43751 | KEYTRADE Arkea Direct Bank SA | — | |
| AS34191 | DGBS-NUE-DE-AS DATAGROUP Operations GmbH | — | |
| AS22056 | SITEL-OMA - Sitel | — | |
| AS40810 | EY-AS-SG - Ernst & Young LLP | — | |
| AS206266 | Unknown | — | |
| AS21033 | ESSILOR International SAS | — | |
| AS23947 | MORATELINDONAP-AS-ID - PT.Mora Telematika Indonesia | — | |
| AS9159 | Credit Agricole SA | — | |
| AS205366 | dreso_de-ffm_rz1 Drees & Sommer SE | — | |
| AS26654 | RFA-IDC - Richard Fleischman & Assoc., Inc. | — | |
| AS46118 | CELANESE-US - Celanese International Corporation | — | |
| AS142118 | SGHKB-AS-AP - Societe Generale | — | |
| AS9507 | NEXTHOP-AS-AP - NextHop Pty Ltd | — | |
| AS703 | UUNET - Verizon Business | — | |
| AS3585 | TE Connectivity Corporation | — | |
| AS202466 | qbeeo QBE Management Services (UK) Limited | — | |
| AS3299 | Societe Generale S.A. | — | |
| AS203315 | Web Wiz Ltd | 44 | |
| AS135607 | Unknown | — | |
| AS6786 | CRONON-BERLIN-AS Cronon GmbH | — | |
| AS28676 | WiTCOM Wiesbadener Informations- und Telekommunikations GmbH | — | |
| AS24953 | ASN-NETPLANET NETPLANET GmbH | — | |
| AS11404 | AS-WAVE-1 - Wave Broadband | — | |
| AS17071 | UBSW-STAMFORD - UBS AG | — | |
| AS28729 | Ford Motor Company Limited | — | |
| AS16316 | TMT GmbH & Co. KG | — | |
| AS200083 | Sub 6 Limited | 27 | |
| AS2687 | ATGS-MMD-AS - AT&T Enterprises, LLC | — | |
| AS12888 | Amadeus GmbH | — | |
| AS8528 | Renault SAS | — | |
| AS44931 | TNT-EXP-ICS FedEx Express International B.V. | — | |
| AS12331 | Audi AG | — | |
| AS7795 | LUMOS Networks, Inc. | — | |
| AS16365 | Commerzbank Aktiengesellschaft | — | |
| AS15726 | MARCANT AG | — | |
| AS50837 | CLOUDSIGMA AG | — | |
| AS50824 | DEKRA AG | — | |
| AS2047 | ASN-ROCHE-BASLE Hoffmann - La Roche Ltd. | — | |
| AS15446 | XCOMAGNET flatexDEGIRO SE | — | |
| AS28961 | CANDA-AS C&A Services GmbH & Co. OHG | — | |
| AS39656 | Securitas Direct AB | — | |
| AS15518 | Circular Informationssysteme GmbH | — | |
| AS11323 | Getty Images (Seattle), Inc. | — | |
| AS24786 | PTS-AS ProSiebenSat.1 Tech & Services GmbH | — | |
| AS4515 | PCCW-AS-AP - PCCW IMS Ltd (PCCW Business Internet Access) | — | |
| AS11003 | PANDG - The Procter and Gamble Company | — | |
| AS41700 | Festo Management SE | — | |
| AS24926 | HDM-AS Heidelberger Druckmaschinen Aktiengesellschaft | — | |
| AS213118 | indis Kommunikationssysteme GmbH | — | |
| AS35258 | ITOSS akquinet outsourcing gGmbH | — | |
| AS43440 | Digitale Suisse AG | — | |
| AS48815 | CriticalCase s.r.l | — | |
| AS19400 | SPX Flow Inc. | — | |
| AS20055 | AS-WHOLESAIL - Wholesail networks LLC | — | |
| AS24889 | Monzoon Networks AG | — | |
| AS201543 | Unknown | — | |
| AS9183 | Unknown | 124 | |
| AS19229 | IFOXNETODPD-ENSONO-DCCS - Ensono LP | — | |
| AS40703 | WBD-AS40703 - Turner Broadcasting System, Inc. | — | |
| AS51760 | Unknown | — | |
| AS22024 | SPLUNK-WEST - Splunk, Inc. | — | |
| AS20896 | Unknown | — | |
| AS27552 | TWDX - TowardEX Technologies International, Inc. | — | |
| AS26554 | US Signal Company, L.L.C. | — | |
| AS34171 | SNAFU-LIG-AS snafu Gesellschaft fuer interaktive Netzwerke mbH | — | |
| AS205584 | CASHPOINT Solutions GmbH | — | |
| AS203329 | Unknown | — | |
| AS15580 | Allianz Technology SE | — | |
| AS16107 | Commerzbank Aktiengesellschaft | — | |
| AS203201 | IT-SUPERNAP INFRASTRUCTURE ITALIA COLO S.R.L. | — | |
| AS12512 | CBXNET combox internet GmbH | — | |
| AS209110 | AMPAREX EVEX Deutschland GmbH | — | |
| AS50422 | RBS-GBM Natwest Markets PLC | — | |
| AS5610 | O2 Czech Republic, a.s. | — | |
| AS2860 | NOS COMUNICACOES, S.A. | — | |
| AS50152 | IMED Intermedia Technologies Company Limited | — | |
| AS31404 | LYCATEL DISTRIBUTION UK LIMITED | — | |
| AS12483 | Unknown | — | |
| AS8953 | ASN-ORANGE-ROMANIA Orange Romania S.A. | — | |
| AS10010 | TOKAI Communications Corporation | — | |
| AS20681 | Saxo Bank A/S | — | |
| AS11796 | AIRSTREAMCOMM-NET - Airstream Communications, LLC | — | |
| AS6848 | Telenet BV | 17 | |
| AS42730 | EVANZO e-commerce GmbH | — | |
| AS42831 | UKSERVERS-AS UK Dedicated Servers Limited | 97 | |
| AS30931 | IGINDEX-PLC IG Index Ltd. | — | |
| AS2381 | WiscNet | — | |
| AS63956 | INT-5GN-AS-AP - 5G NETWORK OPERATIONS PTY LTD | — | |
| AS9790 | TWO-DEGREES-AS-AP - Two Degrees Networks Limited | — | |
| AS9186 | ONI ONITELECOM - INFOCOMUNICACOES, S.A. | — | |
| AS48728 | Vodafone Qatar P.Q.S.C | — | |
| AS7632 | Linknet-Exchange-AS-ID - Linknet-Exchange ASN | — | |
| AS4648 | Unknown | — | |
| AS5432 | PROXIMUS-ISP-AS Proximus NV | — | |
| AS9280 | SAU-NET-AU - Servers Australia Pty Ltd | — | |
| AS4862 | EQUANT-ASIA - Orange Business AS for Asia | — | |
| AS58682 | LEVEL3-BD - Level3 Carrier Ltd. | — | |
| AS132132 | REPUBLICTELECOM-SG - MyRepublic Ltd. | — | |
| AS12338 | Euskaltel S.A. | — | |
| AS9038 | BAT-AS9038 Al Bahrainia al Urdunia Liltaknia Wa Alitisalat Plc. Co | — | |
| AS16751 | Unknown | — | |
| AS21336 | INFORENT GmbH | — | |
| AS138128 | SOLNET-ID - PT Solnet Indonesia | — | |
| AS30722 | VODAFONE-IT-ASN Fastweb SpA | — | |
| AS8680 | SURE-International-Limited Sure (Guernsey) Limited | — | |
| AS12353 | VODAFONE-PT Vodafone Portugal - Communicacoes Pessoais S.A. | — | |
| AS26496 | AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC | 45 | |
| AS20836 | CDLAN SpA | — | |
| AS23856 | SPTEL-AS-AP - SPTEL PTE. LTD. | — | |
| AS29518 | Bredband2 AB | 28 | |
| AS55900 | GLBB-JP - GLBB Japan KK | — | |
| AS4780 | Unknown | — | |
| AS5583 | ORANGE-BUSINESS-SERVICES-BENELUX Orange S.A. | — | |
| AS40676 | Psychz Networks | — | |
| AS43833 | OPENCABLE-ASN OPEN CABLE TELECOMUNICACIONES, S.L. | — | |
| AS19108 | SUDDENLINK-COMMUNICATIONS - Optimum | — | |
| AS16265 | LeaseWeb Network B.V. | — | |
| AS135158 | AS-SOFTNET-HK Softnet Limited | — | |
| AS4694 | IDC Frontier Inc. | — | |
| AS2514 | InfoSphere - NTT PC Communications, Inc. | — | |
| AS5413 | Wavenet Limited | — | |
| AS31115 | INTRED S.p.A. | — | |
| AS35847 | AS-EFTL - Ezee Fiber | — | |
| AS43100 | FRANCE-IX-LYN-RS France IX Services SASU | — | |
| AS10282 | DIALIP-PR - GLOBAL ONE | — | |
| AS23033 | Wowrack.com | — | |
| AS9370 | SAKURA-B - SAKURA Internet Inc. | — | |
| AS3352 | Unknown | — | |
| AS7506 | GMO-I-R1 - GMO Internet, Inc. | — | |
| AS35916 | MULTA-ASN1 - MULTACOM CORPORATION | — | |
| AS54825 | Packet Host, Inc. | — | |
| AS5645 | TekSavvy Solutions, Inc. | — | |
| AS17686 | ACCELIA | — | |
| AS13037 | Zen Internet Ltd | 38 | |
| AS13189 | LIDERO Liden Data Internetwork AB | — | |
| AS21309 | CASAWEB-AS HERABIT S.p.A. | — | |
| AS39605 | Iguane Solutions SAS | — | |
| AS51375 | VIVABH STC BAHRAIN B.S.C CLOSED | — | |
| AS53334 | TUT-AS - Total Uptime Technologies, LLC | — | |
| AS2647 | ORANGE-BUSINESS-NAM Orange Business Communications Technology Limited | — | |
| AS4760 | HKTIMS-AP - HKT Limited | — | |
| AS16371 | acens Technologies, S.L. | — | |
| AS24748 | THINX_Poland Atman Sp. z o.o. | — | |
| AS32181 | ASN-GIGENET - GigeNET | — | |
| AS2874 | ORANGE-BUSINESS-SERVICES-NORDICS ORANGE BUSINESS SERVICES U.S. Inc. | — | |
| AS6853 | ORANGE-BUSINESS-SERVICES-SOUTHEUR ORANGE BUSINESS SERVICES U.S. Inc. | — | |
| AS8607 | TIMICO Digital Space Group Limited | — | |
| AS14016 | CAPCON-NETWORK-LLC - Capcon Networks | — | |
| AS201838 | ASN-COMMUNITYFIBRE Community Fibre Limited | — | |
| AS4004 | Cogent Communications, LLC | — | |
| AS8360 | Allianz Technology SE | — | |
| AS11377 | SendGrid, Inc. | — | |
| AS9371 | SAKURA-C - SAKURA Internet Inc. | — | |
| AS11979 | BLUENET - Bluegrass Network LLC | — | |
| AS29283 | Unknown | — | |
| AS13727 | ND-CA-ASN - NEXT DIMENSION INC | — | |
| AS40065 | CNSERVERS LLC | — | |
| AS30517 | Great Lakes Comnet, Inc. | — | |
| AS43578 | bitNAP TEMPLUS BARCELONA S.L. | — | |
| AS15224 | OMNITURE - Adobe Inc. | — | |
| AS31655 | Unknown | — | |
| AS400529 | Infraly, LLC | — |
Among the networks we hold ipbot.dk routing data for (the ones looked up on this site), so this is a sample of the AS's customers, not all of them.
| CIDR | Domains |
|---|---|
| 80.80.0.0/19 | 54 |
| 80.169.32.0/19 | 16 |
| 62.23.0.0/16 | 11 |
| 213.61.0.0/16 | 10 |
| 217.110.0.0/19 | 9 |
| 217.111.64.0/18 | 6 |
| 84.16.160.0/19 | 5 |
| 213.27.128.0/17 | 4 |
| 213.41.0.0/17 | 2 |
| 212.35.96.0/19 | 2 |
| 213.86.128.0/17 | 2 |
| 194.223.128.0/19 | 1 |
| 62.96.128.0/18 | 1 |
| 217.111.0.0/19 | 1 |
| 212.31.224.0/19 | 1 |
| 213.229.128.0/18 | 1 |
| 213.215.128.0/17 | 1 |
| 46.28.184.0/24 | 1 |
| 212.123.192.0/18 | 1 |
| Hostname | Domains |
|---|---|
| ns0.lon.auth.colt.net | 19 |
| ns1.fra.auth.colt.net | 19 |
| ns8.colt.net | 8 |
| ns0.dk.colt.net | 8 |
| ns1.dk.colt.net | 8 |
| ns1.de.colt.net | 6 |
| ns0.de.colt.net | 6 |
| ns.it.colt.net | 3 |
| ns2.it.colt.net | 3 |
| ns0.uk.colt.net | 2 |
| ns1.uk.colt.net | 2 |
| ns1.se.colt.net | 2 |
| gate1.psi.de | 2 |
| ns1.zetes.com | 1 |
| frparns01.enea.com | 1 |
| ns1.doblenet.com | 1 |
| ns2.doblenet.com | 1 |
| ns1.euroclix.nl | 1 |