AS Number
AS57653
AS Name
CTL-AS
Org Name
Central Technology Ltd
Registry

ripe

RegDate

N/A

Updated

2017-11-15T12:23:33Z

AS57653 Looking Glass
IPv4Prefixes

5

IPv6Prefixes

1

IPv4 NUMs

3,840

IPv6 NUMs(/64)

4,294,967,296

3,840 IPv4 Addresses
CIDR Description IP Num
45.149.241.0/24 Central Technology Ltd 256
94.156.96.0/24 Central Technology Ltd 256
94.156.186.0/24 Central Technology Ltd 256
109.69.232.0/21 Central Technology Ltd 2048
185.191.84.0/22 Central Technology Ltd 1024
CIDR Description IP NUMs(prefix /64)
2a00:1ba8::/32 Central Technology Ltd 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 12,032 4,313,841,664 IPv4 IPv4
AS15412 FLAG-AS - FLAG TELECOM UK LIMITED, GB United Kingdom 36,096 4,294,967,296 IPv4 IPv4
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS25091 IP-Max - IP-Max SA, CH Switzerland 15,104 68,719,607,808 IPv4 IPv4 IPv6 IPv6
AS3741 NTT-DATA-Inc - Dimension Data, ZA South Africa 2,970,624 137,439,084,544 IPv4 IPv4
AS7195 EDGEUNO S.A.S, CO Colombia 31,232 4,275,175,424 IPv4 IPv4 IPv6 IPv6
AS61573 Ip Telecom BR, BR Brazil 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 35,904,256 185,519,570,944 IPv4 IPv4 IPv6 IPv6
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 7,203,840 30,065,164,288 IPv4 IPv4 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 768 268,435,456 IPv4 IPv4
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1,072,896 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 99,328 77,403,586,560 IPv4 IPv4 IPv6 IPv6
AS5398 InternetONE - Internet one SRL, CH Switzerland 20,224 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 585,216 282,636,229,083,136 IPv4 IPv4 IPv6 IPv6
AS7575 AARNET-AS-AP - Australian Academic and Research Network, AU Australia 1,154,048 25,769,934,848 IPv4 IPv4 IPv6 IPv6
as-block:       AS57370 - AS57973
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2025-04-24T14:15:44Z
last-modified:  2025-04-24T14:15:44Z
source:         RIPE



aut-num:        AS57653
as-name:        CTL-AS
org:            ORG-CTL23-RIPE
import:         from AS39326 accept ANY
import:         from AS31727 accept ANY
export:         to AS39326 announce AS57653
export:         to AS31727 announce AS57653
admin-c:        CB3871
tech-c:         CB3871
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-CTL
created:        2011-12-29T10:26:42Z
last-modified:  2017-11-15T12:23:33Z
source:         RIPE

organisation:   ORG-CTL23-RIPE
org-name:       Central Technology Ltd
country:        GB
org-type:       LIR
address:        Quantum Point
                Sheepbridge Lane
address:        S41 9RX
address:        Chesterfield
address:        UNITED KINGDOM
phone:          +448454138888
fax-no:         +448454138877
e-mail:         [email protected]
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-CTL
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-CTL
abuse-c:        CTLA1-RIPE
created:        2009-10-14T12:25:19Z
last-modified:  2020-12-16T13:27:35Z
source:         RIPE

person:         Christopher Barr
address:        Central Technology Ltd, Quantum Point, Sheepbridge Lane, Chesterfield, Derbyshire, S41 9RX
phone:          +441246266130
e-mail:         [email protected]
nic-hdl:        CB3871
mnt-by:         MNT-CTL
created:        2009-10-15T13:10:58Z
last-modified:  2024-02-02T15:07:18Z
source:         RIPE