AS198623 - ISUMO-UK - ISUMO Ltd, GB

United Kingdom
AS Number
AS198623
AS Name
ISUMO-UK
Org Name
ISUMO Ltd
Country / Region
United Kingdom
Registry

ripe

RegDate

Updated

2026-02-18T10:24:00Z

AS198623 Looking Glass
IPv4Prefixes

3

IPv6Prefixes

0

IPv4 NUMs

4,352

IPv6 NUMs(/64)

0

CIDR Description IP Num
37.77.192.0/21
IRR InValid
ISUMO Ltd 2048
37.123.248.0/21
IRR InValid
ISUMO Ltd 2048
193.104.81.0/24
IRR Valid
ISUMO Ltd 256
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,233,472 215,834,689,537 IPv4 IPv4
AS1000 LINK-AMERICAN - LINK AMERICAN, US United States 0 0 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,864,512 81,626,398,720 IPv4 IPv4

Whois Record

as-block AS198305 - AS199072

as-block
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
2026-02-18T10:24:00Z
last-modified
2026-02-18T10:24:00Z
source
RIPE

aut-num AS198623

aut-num
as-name
ISUMO-UK
org
ORG-iL246-RIPE
remarks
----------------------------------------
<Transit>
</Transit>
----------------------------------------
<Peers>
</Peers>
----------------------------------------
<Customers>
</Customers>
----------------------------------------
mp-import
from AS174 accept ANY
from AS3356 accept ANY
from AS198623:AS-CUSTOMERS accept AS198623:RS-ROUTES:PeerAS
mp-export
to AS174 announce AS198623 AS198623:AS-CUSTOMERS
to AS3356 announce AS198623 AS198623:AS-CUSTOMERS
to AS198623:AS-CUSTOMERS announce ANY
admin-c
JK7138-RIPE
tech-c
JK7138-RIPE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
ISUMO-MNT
created
2012-03-27T11:11:40Z
last-modified
2018-09-04T11:10:33Z
source
RIPE

organisation ORG-iL246-RIPE

organisation
ORG-iL246-RIPE
org-name
ISUMO Ltd
country
GB
reg-nr
07678983
org-type
LIR
address
20-22 Wenlock Road
London
N1 7GU
UNITED KINGDOM
phone
+4402078711476
fax-no
+448454506785
e-mail
abuse-c
AR17735-RIPE
mnt-ref
ISUMO-MNT
RIPE-NCC-HM-MNT
mnt-by
RIPE-NCC-HM-MNT
ISUMO-MNT
created
2011-11-25T13:05:56Z
last-modified
2026-05-13T07:24:33Z
source
RIPE

person John Keyser

person
John Keyser
address
9 Devonshire Square
London
EC2M 4YF
phone
+448455198828
e-mail
nic-hdl
JK7138-RIPE
mnt-by
ISUMO-MNT
created
2012-01-10T11:21:56Z
last-modified
2019-04-30T09:45:17Z
source
RIPE
 

as-block:       AS198305 - AS199072
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:        2026-02-18T10:24:00Z
last-modified:  2026-02-18T10:24:00Z
source:         RIPE



aut-num:        AS198623
as-name:        ISUMO-UK
org:            ORG-iL246-RIPE
remarks:        ----------------------------------------
remarks:        <Transit>
mp-import:      from AS174 accept ANY
mp-import:      from AS3356 accept ANY
mp-export:      to AS174 announce AS198623 AS198623:AS-CUSTOMERS
mp-export:      to AS3356 announce AS198623 AS198623:AS-CUSTOMERS
remarks:        </Transit>
remarks:        ----------------------------------------
remarks:        <Peers>
remarks:        </Peers>
remarks:        ----------------------------------------
remarks:        <Customers>
mp-import:      from AS198623:AS-CUSTOMERS accept AS198623:RS-ROUTES:PeerAS
mp-export:      to AS198623:AS-CUSTOMERS announce ANY
remarks:        </Customers>
remarks:        ----------------------------------------
admin-c:        JK7138-RIPE
tech-c:         JK7138-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ISUMO-MNT
created:        2012-03-27T11:11:40Z
last-modified:  2018-09-04T11:10:33Z
source:         RIPE

organisation:   ORG-iL246-RIPE
org-name:       ISUMO Ltd
country:        GB
reg-nr:         07678983
org-type:       LIR
address:        20-22 Wenlock Road
address:        London
address:        N1 7GU
address:        UNITED KINGDOM
phone:          +4402078711476
fax-no:         +448454506785
e-mail:         [email protected]
abuse-c:        AR17735-RIPE
mnt-ref:        ISUMO-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ISUMO-MNT
created:        2011-11-25T13:05:56Z
last-modified:  2026-05-13T07:24:33Z
source:         RIPE

person:         John Keyser
address:        9 Devonshire Square
address:        London
address:        EC2M 4YF
phone:          +448455198828
e-mail:         [email protected]
nic-hdl:        JK7138-RIPE
mnt-by:         ISUMO-MNT
created:        2012-01-10T11:21:56Z
last-modified:  2019-04-30T09:45:17Z
source:         RIPE