Summary

NetName
OrgName
Colt Technology Services Co., Ltd.
CIDR
RIR

APNIC

Country
Status

Abuse

abuse2@colt.net

Contact

********

abuse2@colt.net

RegDate

Updated

Routing

AS Desc Country IPv4 NUMs IPv6 NUMs
AS559 Switch, CH Switzerland 2184960 176093790208
AS577 BACOM - Bell Canada, CA Canada 6904576 8785297408
AS852 ASN852 - TELUS Communications Inc., CA Canada 4794624 12907118592
AS1273 CW - Vodafone Group PLC, GB United Kingdom 1811968 8796093022208
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 85248 240518430720
AS1853 ACOnet, AT Austria 334592 34359803904
AS2152 CENIC-2152 - CENIC, US United States 2013440 4294967296
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3908608 17716871168
AS2907 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics, JP Japan 8883264 8589934592
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 6334976 30065098752
AS3303 SWISSCOM - Swisscom (Schweiz) AG, CH Switzerland 3522048 204347408384
AS3399 OBE-NET - Obenet AB, SE Sweden 17152 38654771200
AS3491 CONSOLE-CONNECT-ASN - PCCW Global, Inc., US United States 1158656 13421838336
AS4635 HKIX-RS1 - The Hong Kong Internet Exchange Limited, HK Hong Kong 2048 0
AS4637 ASN-TELSTRA-GLOBAL - Telstra International Limited, HK Hong Kong 1148416 21474836480
AS4777 APNIC-COLO - Asia Pacific Network Information Centre, AU Australia 512 1073741824
AS4826 VOCUS-BACKBONE-AS - VOCUS PTY LTD, AU Australia 326400 17180065792
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 2816 34359738368
AS6453 AS6453 - TATA COMMUNICATIONS (AMERICA) INC, US United States 507904 55834705920
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1744640 52076871680
AS6663 TTI-NET - Euroweb Romania S.R.L., RO Romania 39936 6442450944
AS6667 EUNET-FINLAND - Elisa Oyj, FI Finland 2560 4294967296
AS6696 VERIXI - VERIXI SA, BE Belgium 83456 8589934592
AS6730 SUNRISE - Sunrise GmbH, CH Switzerland 1992704 292091789312
AS6830 LibertyGlobal - Liberty Global Europe Holding B.V., NL Netherlands 1121024 103079215104
AS6939 HURRICANE - Hurricane Electric LLC, US United States 578048 282631665680384
AS7195 EDGEUNO S.A.S, CO Colombia 31488 4275109888
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47360 12884967424
AS8426 CLARANET-AS - Claranet Limited, GB United Kingdom 987904 253403463680
AS9002 RETN-AS - RETN Limited, GB United Kingdom 42240 4294967296
AS9583 SIFY-AS-IN - Sify Limited, IN India 755712 4294967296
AS12552 GlobalConnect-AS12552 - GlobalConnect AB, SE Sweden 561152 214749347840
AS12637 SEEWEB - SEEWEB s.r.l., IT Italy 82176 197568495616
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 46336 42949804032
AS13030 INIT7 - Init7 (Switzerland) Ltd., CH Switzerland 113408 107395481600
AS13058 serve-u-AS - serve-u - Buchholz und Suenderhauf GbR, DE Germany 2048 34359738368
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 66048 12884901888
AS16347 INHERENT - ADISTA SAS, FR France 246528 390842023936
AS16552 DIGICERT - Tiggee LLC, US United States 20736 34363670528
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53248 13153337344
AS19151 BBO-1 - BroadbandONE, LLC, US United States 31488 4294967296
AS19653 CTSTELECOM - CTS Communications Corp, US United States 61952 4294967296
AS20912 ASN-PANSERVICE - Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C.", IT Italy 18432 4294967296
AS21320 GEANT_IAS_VRF - GEANT Vereniging, NL Netherlands 2048 0
AS24115 ASN-EQIX-MLPE - Equinix Asia Pacific Pte Ltd, SG Singapore 0 0
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20992 4294967296
AS25152 K-ROOT-SERVER - Reseaux IP Europeens Network Coordination Centre (RIPE NCC), NL Netherlands 512 4294967296
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 31744 107374182400
AS30844 LIQUID-AS - Liquid Telecommunications Ltd, GB United Kingdom 368384 38654705664
AS31034 ARUBA-ASN - Aruba S.p.A., IT Italy 288768 27279753216
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 12800 2162688
AS34177 CELESTE-AS - CELESTE SAS, FR France 289792 98784247808
AS35280 F5 - F5 Networks SARL, FR France 54016 81604378624
AS35625 EUROFIBER-FRANCE - Eurofiber France SAS, FR France 29184 103095992320
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1072896 12884901888
AS37271 Workonline - Workonline Communications(Pty) Ltd, ZA South Africa 9216 4294967296
AS38008 APERTURE-AS-AP - Aperture Science Limited, HK Hong Kong 2560 4579131392
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 13824 4312989696
AS39642 Norlys-Fibernet - Norlys Digital A/S, DK Denmark 560128 146028953600
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7168 68719476736
AS42473 AS-ANEXIA - Anexia Cloud Solutions GmbH, AT Austria 85504 4320264192
AS45796 UIH-BBCONNECT-AS-AP - UIH / BB Connect, TH Thailand 2048 4294967296
AS47147 AS-ANX - Anexia Cloud Solutions GmbH, AT Austria 3584 131072
AS47692 NESSUS - Nessus GmbH, AT Austria 37120 34359869440
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 115712 352458113024
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S., CO Colombia 4096 8589934592
AS58511 ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU Australia 22528 8589934592
AS59105 HOMENOC - Home NOC Operators Group, JP Japan 2048 4294967296
AS137207 JUCC-AS-AP - Joint Universities Computer Centre Limited, HK Hong Kong 1024 4294967296
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 105728 77405290496
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 125344 112787456

Whois

inet6num:       2400:81e0::/32
netname:        CTSCL-JP
descr:          Colt Technology Services Co., Ltd.
country:        JP
org:            ORG-CTSC1-AP
admin-c:        CTSC2-AP
tech-c:         CTSC2-AP
abuse-c:        AC2582-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CTSCL-JP
mnt-routes:     MAINT-CTSCL-JP
mnt-irt:        IRT-CTSCL-JP
last-modified:  2022-05-26T08:44:44Z
source:         APNIC

organisation:   ORG-CTSC1-AP
org-name:       Colt Technology Services Co., Ltd.
org-type:       LIR
country:        JP
address:        ********
phone:          ********
e-mail:         ********
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:50Z
source:         APNIC

irt:            IRT-CTSCL-JP
address:        Izumi Garden Tower, 27F 1-6-1, Roppongi, Minato-ku, Tokyo Tokyo 106-6027
e-mail:         abuse2@colt.net
abuse-mailbox:  abuse2@colt.net
admin-c:        CTSC2-AP
tech-c:         CTSC2-AP
auth:           # Filtered
remarks:        abuse2@colt.net is invalid
mnt-by:         MAINT-CTSCL-JP
last-modified:  2026-02-11T13:09:51Z
source:         APNIC

role:           Colt Technology Services Co Ltd administrator
address:        ********
country:        JP
phone:          ********
e-mail:         ********
admin-c:        CTSC2-AP
tech-c:         CTSC2-AP
nic-hdl:        CTSC2-AP
mnt-by:         MAINT-CTSCL-JP
last-modified:  2023-02-01T07:07:49Z
source:         APNIC

role:           ABUSE CTSCLJP
country:        ZZ
address:        Izumi Garden Tower, 27F 1-6-1, Roppongi, Minato-ku, Tokyo Tokyo 106-6027
phone:          +000000000
e-mail:         abuse2@colt.net
admin-c:        CTSC2-AP
tech-c:         CTSC2-AP
nic-hdl:        AC2582-AP
remarks:        Generated from irt object IRT-CTSCL-JP
remarks:        abuse2@colt.net is invalid
abuse-mailbox:  abuse2@colt.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:17Z
source:         APNIC

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