187.54.48.0/21 subnet IP range details

Summary

Country	Hong Kong
Domain	ctcsci.com
Size	2,048
Registry	APNIC
Network Name	CTCSCITECHLIMITED-HK
Whois

inetnum:        187.54.48.0 - 187.54.63.255
netname:        CTCSCITECHLIMITED-HK
descr:          CTCSCI TECH LIMITED
country:        HK
org:            ORG-CTL14-AP
admin-c:        CTLA8-AP
tech-c:         CTLA8-AP
abuse-c:        AC2739-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CTCSCITECHLIMITED-HK
mnt-routes:     MAINT-CTCSCITECHLIMITED-HK
mnt-irt:        IRT-CTCSCITECHLIMITED-HK
last-modified:  2026-05-13T05:54:38Z
source:         APNIC

irt:            IRT-CTCSCITECHLIMITED-HK
address:        RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong, HONG KONG PAI RD KWAI CHUNG NT 100
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CTLA8-AP
tech-c:         CTLA8-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2026-01-05
remarks:        [email protected] was validated on 2026-01-05
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-06-09T17:14:26Z
source:         APNIC

organisation:   ORG-CTL14-AP
org-name:       CTCSCI TECH LIMITED
org-type:       LIR
country:        HK
address:        RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
phone:          +85259588341
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-05-08T13:15:50Z
source:         APNIC

role:           ABUSE CTCSCITECHLIMITEDHK
country:        ZZ
address:        RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong, HONG KONG PAI RD KWAI CHUNG NT 100
phone:          +000000000
e-mail:         [email protected]
admin-c:        CTLA8-AP
tech-c:         CTLA8-AP
nic-hdl:        AC2739-AP
remarks:        Generated from irt object IRT-CTCSCITECHLIMITED-HK
remarks:        [email protected] was validated on 2026-01-05
remarks:        [email protected] was validated on 2026-01-05
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-05T09:12:43Z
source:         APNIC

role:           CTCSCI TECH LIMITED administrator
address:        RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong, HONG KONG PAI RD KWAI CHUNG NT 100
country:        HK
phone:          +85266881450
e-mail:         [email protected]
admin-c:        CTLA8-AP
tech-c:         CTLA8-AP
nic-hdl:        CTLA8-AP
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2023-09-25T15:13:59Z
abuse-mailbox:  [email protected]
source:         APNIC

route:          187.54.48.0/21
descr:          PAN-LIAN TECHNOLOGY CO., LIMITED(PUMPCLOUD)
country:        HK
origin:         AS10753
notify:         [email protected]
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-05-22T05:02:05Z
source:         APNIC

route:          187.54.48.0/21
origin:         AS137897
descr:          CTCSCI TECH LIMITED RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-06-17T07:57:00Z
source:         APNIC
country:        HK
notify:         [email protected]

route:          187.54.48.0/21
descr:          PAN-LIAN TECHNOLOGY CO., LIMITED(PUMPCLOUD)
country:        HK
origin:         AS206675
notify:         [email protected]
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-05-22T05:02:07Z
source:         APNIC

route:          187.54.48.0/21
origin:         AS3491
descr:          CTCSCI TECH LIMITED RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-06-17T07:50:18Z
source:         APNIC
country:        HK
notify:         [email protected]

route:          187.54.48.0/21
origin:         AS395886
descr:          CTCSCI TECH LIMITED
                RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-07-07T23:43:10Z
source:         APNIC

route:          187.54.48.0/21
origin:         AS400618
descr:          CTCSCI TECH LIMITED
                RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-07-06T06:20:39Z
source:         APNIC

route:          187.54.48.0/21
descr:          PAN-LIAN TECHNOLOGY CO., LIMITED(PUMPCLOUD)
country:        HK
origin:         AS4515
notify:         [email protected]
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-05-22T05:02:03Z
source:         APNIC

route:          187.54.48.0/21
origin:         AS8796
descr:          CTCSCI TECH LIMITED
                RM 023, 9/F BLK G KWAI SHING IND BLDG42-46 TAI LIN HONGkong
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
last-modified:  2026-07-07T23:43:06Z
source:         APNIC
CIDR IP address subranges within 187.54.48.0/21 subnet

187.54.48.0/24
187.54.49.0/24
187.54.50.0/24
187.54.51.0/24
187.54.52.0/24
187.54.53.0/24
187.54.54.0/24
187.54.55.0/24
187.54.48.0/21

AS137897 — PAN-LIAN TECHNOLOGY CO., LIMITED

Summary

Whois

CIDR IP address subranges within 187.54.48.0/21 subnet
