1. All IP Ranges
  2. 103.0.0.0/8
  3. 103.77.0.0/16
  4. AS151797  | 103.77.210.0/24

103.77.210.0/24

AS151797  ·  CTCSCI TECH LIMITED

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Summary

Country Hong Kong
Domain ctcsci.com
ASN AS151797
Parent Range 103.77.210.0/23
Registry APNIC
ID CTCSCI

WHOIS Details

inetnum:        103.77.210.0 - 103.77.210.255
netname:        CTCSCI
descr:          CTCSCI Tech Limited
country:        HK
admin-c:        CTLA8-AP
tech-c:         CTLA8-AP
abuse-c:        AC2739-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-CTCSCITECHLIMITED-HK
mnt-irt:        IRT-CTCSCITECHLIMITED-HK
last-modified:  2023-09-12T08:58:34Z
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:  2026-01-05T09:12:32Z
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:          103.77.210.0/24
origin:         AS151797
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:  2023-10-23T16:45:27Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 103.77.210.0/24

Range ASN Company Num of IPs
103.77.210.0/23 AS151797 CTCSCI TECH LIMITED 512

Nearby Ranges

BGP prefixes that overlap with 103.77.0.0/16

Range ASN Company Num of IPs
103.77.140.0/22 AS19551 SPTEL PTE. LTD. 1,024
103.77.32.0/22 AS16347 ADISTA SAS 1,024
103.77.40.0/22 AS150596 ANJANI BROADBAND SOLUTIONS PVT.LTD. 1,024
103.77.92.0/22 AS63631 GuangDong NU. Data Technology Co.,Ltd 1,024
103.77.40.0/22 AS58965 ANJANI BROADBAND SOLUTIONS PVT.LTD. 1,024
103.77.48.0/22 AS55699 PT. Cemerlang Multimedia 1,024
103.77.204.0/22 AS64297 PT Medialink Global Mandiri 1,024
103.77.144.0/22 AS4851 BNEHOST Pty Ltd 1,024
103.77.28.0/22 AS4847 Beijing Tianhong Huitong Network Technology Co. Ltd. 1,024
103.77.120.0/22 AS45577 Design9 Pty Ltd 1,024
103.77.164.0/22 AS45544 Super micro small company 1,024
103.77.0.0/22 AS134375 Fusionnet Web Services Private Limited 1,024
103.77.160.0/22 AS45544 P.A Viet Nam company limited 1,024
103.77.64.0/22 AS38229 Lanka Education and Research Network (LEARN) 1,024
103.77.44.0/22 AS23860 Premier Broadband Services 1,024
103.77.136.0/22 AS23860 IT Infotainment Services 1,024
103.77.168.0/22 AS63764 INCOM SAI GON JOINT STOCK COMPANY 1,024
103.77.140.0/22 AS23856 SPTEL PTE. LTD. 1,024
103.77.228.0/22 AS206318 CAST-TELECOM SL 1,024
103.77.180.0/23 AS151799 Dialplan 512
103.77.130.0/23 AS132708 VNG Singapore PTE. LTD. 512
103.77.70.0/23 AS134832 PREMIER TECHNOLOGY SOLUTIONS PTY LTD 512
103.77.172.0/23 AS140810 LIENVPS TECHNOLOGY COMPANY LIMITED 512
103.77.214.0/23 AS140810 VINASITE VIET NAM COMPANY LIMITED 512
103.77.240.0/23 AS140810 HTSG HIGH TECHNOLOGY SERVICES AND MEDIA JOINT STOCK COMPANY 512
103.77.246.0/23 AS140810 BIDATA MEDIA AND TECHNOLOGY JOINT STOCK COMPANY 512
103.77.218.0/23 AS149478 Rocket Internet Service 512
103.77.174.0/23 AS150821 HD TECHNICAL INFRASTRUCTURE CONSTRUCTION COMPANY LIMITED 512
103.77.182.0/23 AS150896 HUNGCLOUD COMPANY LIMITED 512
103.77.242.0/23 AS150900 VPSMMO COMPANY LIMITED 512
103.77.178.0/23 AS151795 Foreign Trade Bank of Cambodia 512
103.77.210.0/23 AS151797 CTCSCI TECH LIMITED 512
103.77.212.0/23 AS151798 SmartLink Telecommunications Private Limited 512
103.77.208.0/23 AS151858 AZPLAY TECHNOLOGY COMPANY LIMITED 512
103.77.24.0/23 AS153621 GIT LIMITED 512
103.77.4.0/23 AS58610 Telnet Telecommunication Limited 512
103.77.202.0/23 AS59185 Naveen Kumar Makthal t/a NETSYS TECHNOLOGIES 512
103.77.226.0/23 AS64298 UPN Veteran Surabaya 512
103.77.195.0/24 AS10222 Multibyte Info Technology Limited 256
103.77.128.0/24 AS7474 Yarra Valley Water 256
103.77.244.0/24 AS150901 NEXTPAY DIGITAL TRANSFORMATION GROUP JOINT STOCK COMPANY 256
103.77.193.0/24 AS10222 Multibyte Info Technology Limited 256
103.77.192.0/24 AS10222 Multibyte Info Technology Limited 256
103.77.211.0/24 AS151797 CTCSCI Tech Limited 256
103.77.252.0/24 AS63844 One Net Communication Ltd 256
103.77.212.0/24 AS151798 SmartLink Telecommunications Private Limited 256
103.77.213.0/24 AS151798 SmartLink Telecommunications Private Limited 256
103.77.20.0/24 AS10099 China Unicom Global Limited 256
103.77.253.0/24 AS63844 One Net Communication Ltd 256

Hosted domains

There are no domains currently hosted on this ASN.

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Pingable IPs

16 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
103.77.210.133 AS151797 CTCSCI TECH LIMITED 0.22ms from Hong Kong, HK

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
95.105.220.184 AS15962 Orange Slovensko a.s. 4.71ms from Bratislava, SK
3.255.38.248 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
35.158.23.168 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
109.176.243.216 AS215638 Cilix Limited 0.29ms from London, GB
97.220.60.72 AS6167 Verizon Business 15.59ms from Miami, US
188.168.104.24 AS15774 Limited Liability Company "TTK-Svyaz" 18.09ms from Moscow, RU
68.132.7.72 AS701 Verizon Business 3.00ms from New York City, US
81.249.157.152 AS3215 Orange S.A. 3.31ms from Paris, FR
179.118.228.24 AS26599 TELEFÔNICA BRASIL S.A 1.62ms from Sao Paulo, BR
1.170.136.152 AS3462 Data Communication Business Group 2.45ms from Taichung, TW
2.51.103.168 AS5384 Emirates Internet 5.67ms from Al Fujairah City, AE
20.169.247.168 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
78.87.73.136 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.87ms from Athens, GR
202.44.8.40 AS9551 King Mongkut's University of Technology 1.66ms from Bangkok, TH
44.249.223.248 AS16509 Amazon.com, Inc. 0.52ms from Boardman, US
106.221.19.88 AS45609 Bharti Airtel Ltd. AS for GPRS Service 7.80ms from Chennai, IN
2.122.52.168 AS5607 Sky UK Limited 5.48ms from Erith, GB
46.173.170.120 AS49183 "Galichina Telekommunication" LTD 6.20ms from Kyiv, UA
185.182.3.24 AS21267 Wavenet Limited 0.42ms from London, GB
159.203.125.152 AS14061 DigitalOcean, LLC 0.26ms from New York City, US
119.228.48.104 AS17511 OPTAGE Inc. 2.28ms from Osaka, JP
27.118.98.136 AS17573 SK Broadband Co Ltd 9.40ms from Seoul, KR
108.254.108.184 AS7018 AT&T Enterprises, LLC 4.45ms from Atlanta, US
84.232.128.40 AS8708 DIGI ROMANIA S.A. 4.38ms from Bucharest, RO
34.63.35.232 AS396982 Google LLC 0.12ms from Council Bluffs, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f4 103.77.210.195
traceroute to 103.77.210.195 (103.77.210.195): 64 hops max, 52 byte packets
4 [AS3491] 63.218.126.78 206.874 ms
5 [AS140096] 103.55.5.33 206.743 ms
6 [] 6.6.6.6 212.299 ms
7 [] 103.170.210.246 208.362 ms
8 *
9 *
10 [AS151797] 103.77.210.195 204.965 ms
Measurement taken from IPinfo ProbeNet in Ramallah, PS
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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