Autonomous System details

AS15404

COLT Technology Services Group Limited · colt.net

United Kingdom

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AS15404 – COLT Technology Services Group Limited

Field	Value
Country	United Kingdom
Website	colt.net
Hosted domains	1,574
IPv4 addresses	143,872
IPv6 addresses	84,189,594,077,962,776,133,600,000,000
ASN type	Hosting
Registry	ripe
Allocated	56 years ago on Jan 01, 1970
Updated	6 years ago on Nov 05, 2019

Netblock	Company	Num of IPs
161.17.0.0/16	Guy's and St Thomas' NHS Foundation Trust	65,536
62.85.160.0/19	Aconet Srl	8,192
194.59.96.0/19	Deutsches Patent- und Markenamt	8,192
5.11.96.0/20	Postemobile S.p.A.	4,096
148.188.0.0/20	Boehringer Ingelheim Pharmaceuticals, Inc.	4,096
148.188.192.0/20	Boehringer Ingelheim Pharmaceuticals, Inc.	4,096
193.29.144.0/20	Mahle Behr GmbH & Co.Kg	4,096
148.188.232.0/21	Boehringer Ingelheim Pharmaceuticals, Inc.	2,048
178.249.200.0/21	Poste Italiane S.p.A.	2,048
194.99.120.0/21	Mahle Behr GmbH & Co.Kg	2,048
148.188.224.0/22	Boehringer Ingelheim Pharmaceuticals, Inc.	1,024
185.212.156.0/22	The Finsbury Business Centre Ltd	1,024
193.8.64.0/22	P.O. Box 8036 Zurich	1,024
193.29.152.0/22	Mahle Behr GmbH & Co.Kg	1,024
194.15.244.0/22	Hannover Rueck SE	1,024
77.74.158.0/23	Exide Technologies SAS	512
129.35.20.0/23	Kyndryl	512
185.60.76.0/23	Continental AG	512
185.154.148.0/23	XQueue GmbH	512
193.29.146.0/23	Mahle Behr GmbH & Co.Kg	512
193.29.150.0/23	Mahle Behr GmbH & Co.Kg	512
193.29.156.0/23	Mahle Behr GmbH & Co.Kg	512
193.176.112.0/23	Olaf Severin Geiss trading as Intersnack Group GmbH & Co. KG	512
193.176.114.0/23	Olaf Severin Geiss trading as Intersnack Group GmbH & Co. KG	512
193.177.180.0/23	HTM Personenvervoer N.V.	512
194.15.242.0/23	Hannover Rueck SE	512
202.252.108.0/23	Global Solution 2nd Office. IT Strategy & Digital Integration Division. Hitachi, Ltd.	512
5.182.152.0/24	Hoffmann GmbH Qualitaetswerkzeuge	256
45.129.69.0/24	Tite-Live-Belgique Ltd	256
46.28.212.0/24	Softonic International, S.A.	256
62.182.250.0/24	Genmab A/S	256
85.208.193.0/24	BEL SA	256
91.209.87.0/24	Celanese International Corporation	256
91.212.245.0/24	IVU Traffic Technologies AG	256
91.213.65.0/24	Gabinete do seceretario-Geral e Estrutruras Comuns ao SIED e ao SIS	256
91.213.68.0/24	CMS Hasche Sigle Partnerschaft von Rechtsanwalten und Steuerberatern	256
91.213.91.0/24	NEOFONIE GMBH	256
91.213.110.0/24	LONDON BOROUGH OF TOWER HAMLETS	256
91.238.4.0/24	DEVK Deutsche Eisenbahn Versicherung Sach- und HUK-Versicherungsverein a.G. Betriebliche Sozialeinrichtung der Deutschen Bahn AG	256
91.244.125.0/24	Informatica GmbH	256
103.80.220.0/24	FIL Japan Holdings KK	256
103.80.221.0/24	FIL Japan Holdings KK	256
109.107.145.0/24	Konrad-Adenauer-Stiftung e.V. - ORG-KE81-RIPE	256
129.35.17.0/24	Kyndryl	256
129.35.85.0/24	Kyndryl	256
139.138.235.0/24	Private Customer	256
141.98.45.0/24	RWS GmbH	256
155.137.0.0/24	Leo Pharmaceutical Products	256
155.137.1.0/24	Leo Pharmaceutical Products	256
155.137.2.0/24	Leo Pharmaceutical Products	256
155.137.3.0/24	Leo Pharmaceutical Products	256
155.137.7.0/24	Leo Pharma A/S	256
156.118.0.0/24	IFP ENERGIES NOUVELLES EPIC	256
156.118.6.0/24	IFP ENERGIES NOUVELLES EPIC	256
156.118.8.0/24	IFP ENERGIES NOUVELLES EPIC	256
157.239.128.0/24	Cargill B.V.	256
157.239.129.0/24	Cargill B.V.	256
158.156.155.0/24	Caisse des Depots et Consignations	256
158.156.162.0/24	Caisse des Depots et Consignations	256
158.156.172.0/24	Caisse des Depots et Consignations	256
158.156.182.0/24	Caisse des Depots et Consignations	256
158.156.193.0/24	Caisse des Depots et Consignations	256
161.17.0.0/24	Guy's and St Thomas' NHS Foundation Trust	256
163.199.254.0/24	Nedbank Limited	256
170.200.251.0/24	The Interpublic Group of Companies, Inc.	256
170.200.252.0/24	The Interpublic Group of Companies, Inc.	256
170.200.253.0/24	The Interpublic Group of Companies, Inc.	256
170.248.142.0/24	Accenture LLP	256
170.251.108.0/24	Accenture LLP	256
170.252.84.0/24	Accenture LLP	256
170.252.85.0/24	Accenture LLP	256
170.252.86.0/24	Accenture LLP	256
176.119.201.0/24	VIASAT S.P.A.	256
185.13.62.0/24	VOZITEL SL	256
185.60.79.0/24	Continental AG	256
185.134.140.0/24	First Network for Services	256
185.140.104.0/24	SEFE Securing Energy for Europe GmbH	256
185.199.204.0/24	Zentrum fuer Sonnenenergie- und Wasserstoff-Forschung Baden Wuerttemberg	256
185.203.232.0/24	Market Pay Nordic & Baltic ApS	256
185.213.216.0/24	GROUPAMA ASSICURAZIONI S.P.A.	256
185.213.217.0/24	GROUPAMA ASSICURAZIONI S.P.A.	256
185.218.120.0/24	Engage Hub Ltd.	256
185.218.121.0/24	Engage Hub Ltd.	256
185.218.122.0/24	Engage Hub Ltd.	256
185.218.123.0/24	Engage Hub Ltd.	256
185.226.224.0/24	ALLFUNDS DIGITAL SL	256
185.234.136.0/24	Boerse Stuttgart GmbH	256
188.64.17.0/24	Official IP range SIRA HBG	256
188.64.18.0/24	Official IP range SIRA FFM	256
188.64.19.0/24	Unify Software and Solutions GmbH & Co KG	256
192.31.22.0/24	SAS Institute, Inc.	256
192.76.161.0/24	Amt fuer Informations- und Kommunikationstechnik	256
192.109.222.0/24	Germanischer Lloyd AG	256
192.166.107.0/24	DekaBank Deutsche Girozentrale	256
192.228.1.0/24	Attends Healthcare Products, Inc.	256
192.228.2.0/24	Attends Healthcare Products, Inc.	256
192.228.3.0/24	Attends Healthcare Products, Inc.	256
192.232.64.0/24	Eastman Kodak Company	256
192.232.66.0/24	Eastman Kodak Company	256
193.26.246.0/24	Sopra Steria SE	256
193.26.247.0/24	Sopra Steria SE	256
193.26.248.0/24	Sopra Steria SE	256
193.26.249.0/24	Sopra Steria SE	256
193.26.250.0/24	Sopra Steria SE	256
193.26.251.0/24	Sopra Steria SE	256
193.26.252.0/24	Sopra Steria SE	256
193.26.253.0/24	Sopra Steria SE	256
193.26.254.0/24	Sopra Steria SE	256
193.26.255.0/24	Sopra Steria SE	256
193.28.71.0/24	D-Trust GmbH	256
193.29.159.0/24	Mahle Behr GmbH & Co.Kg	256
193.36.241.0/24	ALLEN OVERY SHEARMAN STERLING LLP	256
193.36.254.0/24	ALLEN OVERY SHEARMAN STERLING LLP	256
193.38.200.0/24	Co-operative Group Limited	256
193.46.62.0/24	Fielmann Group AG	256
193.47.140.0/24	Swissphone Wireless AG	256
193.53.174.0/24	BRUSSELS AIRPORT COMPANY S.A.	256
193.53.185.0/24	BRUSSELS AIRPORT COMPANY S.A.	256
193.53.186.0/24	BRUSSELS AIRPORT COMPANY S.A.	256
193.53.188.0/24	BRUSSELS AIRPORT COMPANY S.A.	256
193.53.190.0/24	BRUSSELS AIRPORT COMPANY S.A.	256
193.56.33.0/24	AIRBUS SAS	256
193.57.56.0/24	InfoVista SAS	256
193.58.6.0/24	Belgium	256
193.73.113.0/24	Zuehlke Engineering AG	256
193.102.79.0/24	AFB Parexel GmbH, Berlin	256
193.102.174.0/24	RMS Radio Marketing Service GmbH & Co. KG	256
193.103.129.0/24	RMS Radio Marketing Service GmbH & Co. KG	256
193.135.254.0/24	Zuehlke Engineering AG	256
193.164.14.0/24	Athene, Odyssey Business Park	256
193.200.191.0/24	Movianto UK Ltd	256
194.11.129.0/24	Manage Now GmbH	256
194.15.16.0/24	Reemtsma Cigarettenfabriken GmbH	256
194.15.18.0/24	Reemtsma Cigarettenfabriken GmbH	256
194.33.183.0/24	LIGS Ltd	256
194.39.220.0/24	Presse und Informationsamt der Bundesregierung	256
194.59.121.0/24	Deutsches Patent- und Markenamt	256
194.59.137.0/24	Centric Netherlands B.V.	256
194.59.139.0/24	Centric Netherlands B.V.	256
194.76.8.0/24	Hamburg	256
194.76.9.0/24	Hamburg	256
194.99.12.0/24	Gewerbezentrum Ricklinger Kreisel	256
194.117.239.0/24	ESSENSYS (UK) Ltd.	256
194.126.242.0/24	Lupus alpha Asset Management AG	256
194.173.47.0/24	DATAGROUP Koeln GmbH	256
195.47.207.0/24	Athene, Odyssey Business Park	256
195.182.60.0/24	Helvetia Schweizerische Versicherungsgesellschaft AG	256
195.234.175.0/24	Amnesty International Limited	256
202.246.252.0/24	Global Solution 2nd Office. IT Strategy & Digital Integration Division. Hitachi, Ltd.	256
213.163.237.0/24	DGN Deutsches Gesundheitsnetz Service GmbH	256

Netblock	Company
2a07:cb81::/32	Centric Netherlands B.V.
2a10:8802::/36	INTERPUBLIC GIS (UK) LTD
2001:678:274::/48	Performance Media Deutschland GmbH
2001:67c:67c::/48	Deutsches Patent- und Markenamt
2001:67c:2b20::/48	Prof. Dr. Michael Kliemt trading as KLIEMT Arbeitsrecht Partnerschaft von Rechtsanwaelten mbB.
2001:67c:2ea0::/48	NEOFONIE GMBH
2a02:11f8:70::/48	Deutsches Patent- und Markenamt
2a0a:d6c0:145::/48	Konrad-Adenauer-Stiftung e.V.
2a0e:900:d001::/48	Hoffmann GmbH Qualitaetswerkzeuge
2a11:4d40::/48	Boehringer Ingelheim GmbH

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WHOIS Details

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                                                ASHandle:       AS15404
                                                OrgID:          AS15404
                                                ASName:         AS15404
                                                ASNumber:       AS15404
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 1,574 domain names hosted across 207 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
91.238.4.123	███████	272
192.76.161.80	██████████	218
62.85.163.191	██████████	62
185.226.224.132	██████████	59
91.213.68.13	██████████	43
45.129.69.168	██████████	43
213.163.237.9	██████████	40
195.182.60.196	██████████	30
185.218.121.82	██████████	29
194.76.8.20	██████████	27

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Peers

There are 3 peers for this ASN.

Peers	Name
AS1419	Selerity Financial, Inc.
AS21070	TotalEnergies SE
AS8220	COLT Technology Services Group Limited

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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS1419	Selerity Financial, Inc.
AS8220	COLT Technology Services Group Limited

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Downstreams

There is 1 peer for this ASN.

Downstreams	Name
AS21070	TotalEnergies SE

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ASN API & Database

Pingable IPs

150 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
185.140.104.3	AS15404 COLT Technology Services Group Limited	`1.70ms` from Berlin, DE
2a10:8802::2	AS15404 COLT Technology Services Group Limited	`0.92ms` from Frankfurt am Main, DE
195.182.60.220	AS15404 COLT Technology Services Group Limited	`0.95ms` from Frankfurt am Main, DE
194.33.183.1	AS15404 COLT Technology Services Group Limited	`1.08ms` from London, GB
185.13.62.141	AS15404 COLT Technology Services Group Limited	`0.34ms` from Madrid, ES
193.56.33.63	AS15404 COLT Technology Services Group Limited	`0.89ms` from Paris, FR
193.135.254.105	AS15404 COLT Technology Services Group Limited	`0.79ms` from Zuerich, CH
193.8.65.169	AS15404 COLT Technology Services Group Limited	`0.87ms` from Zuerich, CH
185.226.224.134	AS15404 COLT Technology Services Group Limited	`0.76ms` from Zuerich, CH
194.76.9.69	AS15404 COLT Technology Services Group Limited	`5.40ms` from Copenhagen, DK
213.163.237.10	AS15404 COLT Technology Services Group Limited	`0.61ms` from Frankfurt am Main, DE
103.80.221.13	AS15404 COLT Technology Services Group Limited	`0.75ms` from Osaka, JP
62.85.168.3	AS15404 COLT Technology Services Group Limited	`2.65ms` from Rome, IT
62.85.162.10	AS15404 COLT Technology Services Group Limited	`1.00ms` from Rome, IT
194.59.122.254	AS15404 COLT Technology Services Group Limited	`6.55ms` from Vienna, AT
192.232.64.1	AS15404 COLT Technology Services Group Limited	`11.16ms` from Copenhagen, DK
2001:678:274::1	AS15404 COLT Technology Services Group Limited	`7.76ms` from Frankfurt am Main, DE
193.29.153.22	AS15404 COLT Technology Services Group Limited	`3.73ms` from Frankfurt am Main, DE
170.252.85.120	AS15404 COLT Technology Services Group Limited	`13.70ms` from Frankfurt am Main, DE
193.57.56.1	AS15404 COLT Technology Services Group Limited	`2.22ms` from Paris, FR
155.137.0.181	AS15404 COLT Technology Services Group Limited	`7.88ms` from Stockholm, SE
193.53.174.159	AS15404 COLT Technology Services Group Limited	`0.58ms` from Brussels, BE
193.103.129.24	AS15404 COLT Technology Services Group Limited	`5.54ms` from Copenhagen, DK
185.212.157.21	AS15404 COLT Technology Services Group Limited	`0.77ms` from London, GB
185.212.156.1	AS15404 COLT Technology Services Group Limited	`0.77ms` from London, GB

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
97.237.130.140	AS6167 Verizon Business	`12.82ms` from Atlanta, US
172.75.74.108	AS11426 Charter Communications Inc	`6.96ms` from Charlotte, US
159.53.18.44	AS7743 JPMorgan Chase & Co.	`7.24ms` from Chicago, US
41.214.57.252	AS8346 SONATEL-AS Autonomous System	`1.94ms` from Dakar, SN
86.164.105.44	AS2856 British Telecommunications PLC	`5.67ms` from Erith, GB
98.67.184.220	AS8075 Microsoft Corporation	`0.88ms` from Frankfurt am Main, DE
1.53.18.172	AS18403 FPT Telecom Company	`0.67ms` from Hanoi, VN
161.81.98.124	AS137872 China Mobile Hong Kong Company Limited	`2.37ms` from Hong Kong, HK
175.114.5.220	AS9318 SK Broadband Co Ltd	`1.38ms` from Incheon, KR
157.173.96.188	AS51167 Contabo GmbH	`0.28ms` from Lauterbourg, FR
129.169.34.252	AS786 Jisc Services Limited	`2.32ms` from London, GB
183.155.182.204	AS4134 CHINANET-BACKBONE	`7.90ms` from Nanchang, CN
65.115.233.76	AS209 CenturyLink Communications, LLC	`1.92ms` from New York City, US
91.170.186.12	AS12322 Free SAS	`5.81ms` from Paris, FR
24.251.88.156	AS22773 Cox Communications Inc.	`1.62ms` from Phoenix, US
119.179.217.204	AS4837 CHINA UNICOM China169 Backbone	`8.22ms` from Qingdao, CN
79.32.227.76	AS3269 Telecom Italia S.p.A.	`5.19ms` from Rome, IT
107.199.201.172	AS7018 AT&T Enterprises, LLC	`3.77ms` from San Jose, US
49.0.124.76	AS133848 Internet Datacenter Network	`13.45ms` from Bangkok, TH
117.12.213.172	AS4837 CHINA UNICOM China169 Backbone	`5.25ms` from Beijing, CN
16.148.80.140	AS16509 Amazon.com, Inc.	`0.51ms` from Boardman, US
69.135.117.188	AS10796 Charter Communications Inc	`1.93ms` from Cleveland, US
119.236.235.44	AS4760 HKT Limited	`9.14ms` from Hong Kong, HK
74.208.234.28	AS8560 IONOS SE	`0.39ms` from Lenexa, US
50.113.74.92	AS20001 Charter Communications Inc	`5.99ms` from Los Angeles, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f2 -m6 148.188.0.141

traceroute to 148.188.0.141 (148.188.0.141): 6 hops max, 52 byte packets

2 [AS58061] 38.180.36.1 0.289 ms

3 [AS200590] 188.94.153.128 1.062 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS15404 at robtex.

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