AS Number
AS57276
AS Name
OPTIMITY
Org Name
Optimity Ltd
Registry

ripe

RegDate

N/A

Updated

2019-03-25T18:32:55Z

AS57276 Looking Glass
IPv4Prefixes

16

IPv6Prefixes

1

IPv4 NUMs

7,168

IPv6 NUMs(/64)

34,359,738,368

7,168 IPv4 Addresses
CIDR Description IP Num
37.157.32.0/22 OPTIMITY001 1024
37.157.32.0/21 Optimity Ltd 2048
37.157.36.0/22 OPTIMITY114 1024
82.163.112.0/22 Optimity Ltd 1024
82.163.112.0/21 Optimity Ltd 2048
82.163.116.0/22 Optimity Ltd 1024
82.163.124.0/23 Optimity Ltd 512
82.163.124.0/22 Optimity Ltd 1024
82.163.126.0/23 Optimity Ltd 512
185.53.224.0/23 OPTIMITY-006 512
185.53.224.0/22 Optimity Ltd 1024
185.53.226.0/23 UK-OPTIMITY-20120314 512
195.250.16.0/24 Optimity Ltd 256
195.250.16.0/22 Optimity Ltd 1024
195.250.17.0/24 Optimity Ltd 256
195.250.19.0/24 Optimity Ltd 256
CIDR Description IP NUMs(prefix /64)
2a01:a220::/29 Optimity Ltd 34359738368
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 35,921,664 417,996,144,640 IPv4 IPv4
AS13335 CLOUDFLARENET - Cloudflare, Inc., US United States 1,721,344 43,952,373,760 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,526,080 253,403,529,216 IPv6 IPv6

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
United Kingdom LINX LON1 - London Internet Exchange Ltd. 10 Gbps 2023-12-14 22:20:54

Private Peering Facilities

Country/Region Name City Website Updated
Equinix LD8 - London, Docklands London http://www.equinix.com/locations/ 2019-07-04 08:03:26
Volta London http://www.voltadatacentres.com/ 2019-07-04 08:02:27
IP Address Domain NUMs Domains
37.157.32.30 7 competition.holition.com
37.157.32.205 3 mailhost.tmmp.co.uk
37.157.33.178 2 lpctx1.estateoffice.com
37.157.33.182 1 ctxgateway.estateoffice.com
37.157.34.67 1 numbersix.lucidica.net
37.157.34.72 1 kobol.lucidica.net
37.157.34.80 3 talkietoaster.net
37.157.34.81 1 sharepoint.accelerator-london.com
37.157.35.22 1 mail.dcdtraining.com
37.157.35.246 1 gig.uk.com
as-block:       AS57148 - AS57368
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:        2024-09-03T13:31:56Z
last-modified:  2024-09-03T13:31:56Z
source:         RIPE



aut-num:        AS57276
as-name:        OPTIMITY
org:            ORG-OL92-RIPE
import:         from AS174 accept ANY
export:         to AS174 announce AS-OPTIMITY
import:         from AS3257 accept ANY
export:         to AS3257 announce AS-OPTIMITY
import:         from AS43531 accept ANY
export:         to AS43531 announce AS-OPTIMITY
mp-import:      afi ipv6.unicast from AS174 action pref=100; accept ANY
mp-export:      afi ipv6.unicast to AS174 announce AS-OPTIMITY
mp-import:      afi ipv6.unicast from AS3257 action pref=100; accept ANY
mp-export:      afi ipv6.unicast to AS3257 announce AS-OPTIMITY
mp-import:      afi ipv6.unicast from AS43531 action pref=100; accept ANY
mp-export:      afi ipv6.unicast to AS43531 announce AS-OPTIMITY
admin-c:        OS5274-RIPE
tech-c:         OS5274-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         OPTIMITY-MNT
created:        2018-06-08T10:54:20Z
last-modified:  2019-03-25T18:32:55Z
source:         RIPE

organisation:   ORG-OL92-RIPE
org-name:       Optimity Ltd
country:        GB
org-type:       LIR
address:        4a Byron House, Lansdowne Court
address:        SN14 6RZ
address:        Chippenham
address:        UNITED KINGDOM
phone:          +442077491000
fax-no:         +442077491001
e-mail:         [email protected]
abuse-c:        AR17832-RIPE
admin-c:        OS5274-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        OPTIMITY-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         OPTIMITY-MNT
created:        2012-02-20T11:44:12Z
last-modified:  2024-03-19T11:13:05Z
source:         RIPE

person:         Optimity Support
e-mail:         [email protected]
address:        Zetland House, 5-25 Scrutton St, London EC2A 4HJ
phone:          +44 207 749 1000
nic-hdl:        OS5274-RIPE
mnt-by:         OPTIMITY-MNT
created:        2018-06-07T17:54:32Z
last-modified:  2019-07-03T15:59:32Z
source:         RIPE