AS Number
AS57653
AS Name
CTL-AS
Org Name
Central Technology Ltd
Country / Region
United Kingdom
Registry

ripe

RegDate

Updated

2023-08-23T15:27:46Z

AS57653 Looking Glass
IPv4Prefixes

3

IPv6Prefixes

1

IPv4 NUMs

3,328

IPv6 NUMs(/64)

4,294,967,296

3,328 IPv4 Addresses
CIDR Description IP Num
94.156.96.0/24
ROA Signed and Valid IRR Valid
Central Technology Ltd 256
109.69.232.0/21
IRR InValid
Central Technology Ltd 2048
185.191.84.0/22
IRR InValid
Central Technology Ltd 1024
CIDR Description IP NUMs(prefix /64)
2a00:1ba8::/32
ROA Signed and Valid IRR Valid
Central Technology Ltd 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS12552 IPO-EU - GlobalConnect AB, SE Sweden 579,072 274,878,955,520 IPv6 IPv6
AS36944 UBUNTU-UNICAST-AS - Ubuntunet Alliance For Research and Education Networking, MW Malawi 2,048 65,536 IPv6 IPv6
AS37662 WIOCC-AS - West Indian Ocean Cable Company, MU Mauritius 9,216 8,590,000,128 IPv6 IPv6
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1,595,904 17,718,247,424 IPv4 IPv4 IPv6 IPv6
AS17660 DRUKNET-AS - Bhutan Telecom Ltd, BT Bhutan 18,432 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 42,240 107,374,182,400 IPv4 IPv4
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1,072,896 12,884,901,888 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 517,376 282,631,675,707,392 IPv4 IPv4 IPv6 IPv6
AS7575 AARNET-AS-AP - Australian Academic and Research Network, AU Australia 1,352,704 25,769,934,848 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 21,504 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 9,472 8,590,786,560 IPv4 IPv4
AS1828 UNITAS - Unitas Global LLC, US United States 230,656 47,244,640,256 IPv4 IPv4 IPv6 IPv6
AS2914 NTT-LTD-2914 - NTT America, Inc., US United States 6,889,472 25,770,196,992 IPv4 IPv4 IPv6 IPv6
AS25091 IP-MAX - IP-Max SA, CH Switzerland 13,824 68,719,607,808 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 27,365,376 195,127,410,688 IPv4 IPv4 IPv6 IPv6
AS15412 FLAG-AS - FLAG TELECOM UK LIMITED, GB United Kingdom 37,632 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0 IPv4 IPv4 IPv6 IPv6
AS36351 SOFTLAYER - SoftLayer Technologies Inc., US United States 4,375,808 39,668,088,832 IPv4 IPv4

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
United Kingdom LINX LON2 - London Internet Exchange Ltd. 195.66.239.61 2001:7f8:4:1::e135:1 10 Gbps 2022-08-22 13:11:58
United Kingdom LINX LON1 - London Internet Exchange Ltd. 195.66.227.61 2001:7f8:4::e135:1 10 Gbps 2022-08-22 14:04:34

Private Peering Facilities

Country / Region Name City Website Updated
IP Address Domain NUMs Domains
109.69.232.35 5 high-temperature-orings.co.uk
109.69.232.36 3 mail.central24.co.uk
109.69.232.37 2 nocsupport.co.uk
109.69.232.41 3 mx01-wkf.ct.co.uk
109.69.232.42 3 mx01-cfd.ct.co.uk
109.69.232.44 2 mx02-wkf.ct.co.uk
109.69.232.49 1 wkf-st01.ct.uk
109.69.232.50 1 nht-st01.ct.uk
109.69.232.52 1 filter02.ct.co.uk
109.69.232.61 2 ctwholesale.net
as-block:       AS57148 - AS58367
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:        2023-08-23T15:27:46Z
last-modified:  2023-08-23T15:27:46Z
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:         chris.barr@centraltechnology.co.uk
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:         noc@ct.uk
nic-hdl:        CB3871
mnt-by:         MNT-CTL
created:        2009-10-15T13:10:58Z
last-modified:  2024-02-02T15:07:18Z
source:         RIPE