Search
IP address details
AS3661
The Chinese University of Hong Kong·
IP address details
AS3661
The Chinese University of Hong Kong·
- Summary
- Prefixes
- Peers
- Upstream
- Downstream
- Graphs
- World Map
- WHOIS Details
- IX
Summary
- As NumberAS3661
- Org NameThe Chinese University of Hong Kong
- CountryHong Kong
- Country CodeHK
- Website
- Regional RegistryAPNIC
- Allocated Date
- Allocated StatusAllocated
- Ipv4 Prefixes7
- Ipv6 Prefixes2
- Ipv4 Peers5
- Ipv6 Peers4
- Ipv4 Upstreams2
- Ipv6 Upstreams3
Prefixes
There are 7 IPv4 Prefixes for this ASN.
Country | Announced Prefix | Description | Parent Prefix | RIR |
|---|---|---|---|---|
| Hong Kong | 103.49.160.0/22 | Information Technology Services Centre | -- | APNIC |
| Hong Kong | 123.255.64.0/21 | Information Technology Services Centre | 123.255.64.0/20 | APNIC |
| Hong Kong | 137.189.0.0/16 | imported inetnum object for CUHK | -- | APNIC |
| Hong Kong | 137.189.196.0/24 | imported inetnum object for CUHK | 137.189.0.0/16 | APNIC |
| Hong Kong | 175.159.224.0/22 | The Chinese University of Hong Kong | 175.159.0.0/16 | APNIC |
| Hong Kong | 202.40.216.0/24 | CUHK Library | 202.40.192.0/19 | APNIC |
| Hong Kong | 203.188.64.0/20 | The Chinese University of Hong Kong | 203.188.64.0/18 | APNIC |
- 1
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
Peers
There are 5 IPv4 Peers for this ASN.
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Upstream
There are 2 IPv4 Upstreams for this ASN.
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Downstream
There are 0 IPv4 Downstreams for this ASN.
Country | ASN | Description | IPv6 |
|---|---|---|---|
暂无数据 | |||
- 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Graphs
World Map
WHOIS Details
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS3661'
% Abuse contact for 'AS3661' is '[email protected]'
aut-num: AS3661
as-name: ERX-CUHKNET
descr: The Chinese University of Hong Kong
descr: Information Technology Services Centre
country: HK
remarks: This aut-num object created as part of the ER-Transfer from ARIN
org: ORG-CUOH1-AP
admin-c: NA17-AP
tech-c: NT27-AP
abuse-c: AC2019-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CUHKNET-HK
mnt-routes: MAINT-CUHKNET-HK
mnt-irt: IRT-CUHKNET-HK
last-modified: 2022-12-05T02:41:49Z
source: APNIC
irt: IRT-CUHKNET-HK
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-05-07
mnt-by: MAINT-CUHKNET-HK
last-modified: 2025-05-07T01:09:02Z
source: APNIC
organisation: ORG-CUOH1-AP
org-name: The Chinese University of Hong Kong
org-type: LIR
country: HK
address: Information Technology Service Centre
address: G/F., Pi-Chiu Building
phone: +852-3943-8848
fax-no: +852-2603-5001
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:14:42Z
source: APNIC
role: ABUSE CUHKNETHK
country: ZZ
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
phone: +000000000
e-mail: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
nic-hdl: AC2019-AP
remarks: Generated from irt object IRT-CUHKNET-HK
remarks: [email protected] was validated on 2025-05-07
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-05-07T01:09:26Z
source: APNIC
person: Network Administration Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NA17-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:45:32Z
source: APNIC
person: Network Technical Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NT27-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:46:08Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS3661'
% Abuse contact for 'AS3661' is '[email protected]'
aut-num: AS3661
as-name: ERX-CUHKNET
descr: The Chinese University of Hong Kong
descr: Information Technology Services Centre
country: HK
remarks: This aut-num object created as part of the ER-Transfer from ARIN
org: ORG-CUOH1-AP
admin-c: NA17-AP
tech-c: NT27-AP
abuse-c: AC2019-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CUHKNET-HK
mnt-routes: MAINT-CUHKNET-HK
mnt-irt: IRT-CUHKNET-HK
last-modified: 2022-12-05T02:41:49Z
source: APNIC
irt: IRT-CUHKNET-HK
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-05-07
mnt-by: MAINT-CUHKNET-HK
last-modified: 2025-05-07T01:09:02Z
source: APNIC
organisation: ORG-CUOH1-AP
org-name: The Chinese University of Hong Kong
org-type: LIR
country: HK
address: Information Technology Service Centre
address: G/F., Pi-Chiu Building
phone: +852-3943-8848
fax-no: +852-2603-5001
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:14:42Z
source: APNIC
role: ABUSE CUHKNETHK
country: ZZ
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
phone: +000000000
e-mail: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
nic-hdl: AC2019-AP
remarks: Generated from irt object IRT-CUHKNET-HK
remarks: [email protected] was validated on 2025-05-07
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-05-07T01:09:26Z
source: APNIC
person: Network Administration Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NA17-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:45:32Z
source: APNIC
person: Network Technical Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NT27-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:46:08Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)
IX
Country | IX | IPv4 | IPv6 | Port Speed |
|---|---|---|---|---|
| Hong Kong | HKIX | 123.255.91.50 | 100 Mbps |
- 1
Country | IX | IPv4 | IPv6 | Port Speed |
|---|---|---|---|---|
| Hong Kong | HKIX | 123.255.91.50 | 100 Mbps |
- 1
Search
IP address details
AS3661
The Chinese University of Hong Kong·
IP address details
AS3661
The Chinese University of Hong Kong·
Summary
- As NumberAS3661
- Org NameThe Chinese University of Hong Kong
- CountryHong Kong
- Country CodeHK
- Website
- Regional RegistryAPNIC
- Allocated Date
- Allocated StatusAllocated
- Ipv4 Prefixes7
- Ipv6 Prefixes2
- Ipv4 Peers5
- Ipv6 Peers4
- Ipv4 Upstreams2
- Ipv6 Upstreams3
Prefixes
There are 7 IPv4 Prefixes for this ASN.
Country | Announced Prefix | Description | Parent Prefix | RIR |
|---|---|---|---|---|
| Hong Kong | 103.49.160.0/22 | Information Technology Services Centre | -- | APNIC |
| Hong Kong | 123.255.64.0/21 | Information Technology Services Centre | 123.255.64.0/20 | APNIC |
| Hong Kong | 137.189.0.0/16 | imported inetnum object for CUHK | -- | APNIC |
| Hong Kong | 137.189.196.0/24 | imported inetnum object for CUHK | 137.189.0.0/16 | APNIC |
| Hong Kong | 175.159.224.0/22 | The Chinese University of Hong Kong | 175.159.0.0/16 | APNIC |
| Hong Kong | 202.40.216.0/24 | CUHK Library | 202.40.192.0/19 | APNIC |
| Hong Kong | 203.188.64.0/20 | The Chinese University of Hong Kong | 203.188.64.0/18 | APNIC |
- 1
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
Peers
There are 5 IPv4 Peers for this ASN.
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Upstream
There are 2 IPv4 Upstreams for this ASN.
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Downstream
There are 0 IPv4 Downstreams for this ASN.
Country | ASN | Description | IPv6 |
|---|---|---|---|
暂无数据 | |||
- 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
Graphs
World Map
WHOIS Details
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS3661'
% Abuse contact for 'AS3661' is '[email protected]'
aut-num: AS3661
as-name: ERX-CUHKNET
descr: The Chinese University of Hong Kong
descr: Information Technology Services Centre
country: HK
remarks: This aut-num object created as part of the ER-Transfer from ARIN
org: ORG-CUOH1-AP
admin-c: NA17-AP
tech-c: NT27-AP
abuse-c: AC2019-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CUHKNET-HK
mnt-routes: MAINT-CUHKNET-HK
mnt-irt: IRT-CUHKNET-HK
last-modified: 2022-12-05T02:41:49Z
source: APNIC
irt: IRT-CUHKNET-HK
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-05-07
mnt-by: MAINT-CUHKNET-HK
last-modified: 2025-05-07T01:09:02Z
source: APNIC
organisation: ORG-CUOH1-AP
org-name: The Chinese University of Hong Kong
org-type: LIR
country: HK
address: Information Technology Service Centre
address: G/F., Pi-Chiu Building
phone: +852-3943-8848
fax-no: +852-2603-5001
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:14:42Z
source: APNIC
role: ABUSE CUHKNETHK
country: ZZ
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
phone: +000000000
e-mail: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
nic-hdl: AC2019-AP
remarks: Generated from irt object IRT-CUHKNET-HK
remarks: [email protected] was validated on 2025-05-07
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-05-07T01:09:26Z
source: APNIC
person: Network Administration Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NA17-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:45:32Z
source: APNIC
person: Network Technical Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NT27-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:46:08Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS3661'
% Abuse contact for 'AS3661' is '[email protected]'
aut-num: AS3661
as-name: ERX-CUHKNET
descr: The Chinese University of Hong Kong
descr: Information Technology Services Centre
country: HK
remarks: This aut-num object created as part of the ER-Transfer from ARIN
org: ORG-CUOH1-AP
admin-c: NA17-AP
tech-c: NT27-AP
abuse-c: AC2019-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CUHKNET-HK
mnt-routes: MAINT-CUHKNET-HK
mnt-irt: IRT-CUHKNET-HK
last-modified: 2022-12-05T02:41:49Z
source: APNIC
irt: IRT-CUHKNET-HK
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
auth: # Filtered
remarks: [email protected] was validated on 2025-05-07
mnt-by: MAINT-CUHKNET-HK
last-modified: 2025-05-07T01:09:02Z
source: APNIC
organisation: ORG-CUOH1-AP
org-name: The Chinese University of Hong Kong
org-type: LIR
country: HK
address: Information Technology Service Centre
address: G/F., Pi-Chiu Building
phone: +852-3943-8848
fax-no: +852-2603-5001
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:14:42Z
source: APNIC
role: ABUSE CUHKNETHK
country: ZZ
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
phone: +000000000
e-mail: [email protected]
admin-c: NA17-AP
tech-c: NT27-AP
nic-hdl: AC2019-AP
remarks: Generated from irt object IRT-CUHKNET-HK
remarks: [email protected] was validated on 2025-05-07
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-05-07T01:09:26Z
source: APNIC
person: Network Administration Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NA17-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:45:32Z
source: APNIC
person: Network Technical Contact
address: Information Technology Services Centre,
address: The Chinese University of Hong Kong,
address: Shatin, N.T.
address: Hong Kong
country: HK
phone: +852-3943-8830
fax-no: +852-2603-5001
e-mail: [email protected]
nic-hdl: NT27-AP
notify: [email protected]
mnt-by: MAINT-CUHKNET-HK
last-modified: 2012-09-19T01:46:08Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-US2)
IX
Country | IX | IPv4 | IPv6 | Port Speed |
|---|---|---|---|---|
| Hong Kong | HKIX | 123.255.91.50 | 100 Mbps |
- 1
Country | IX | IPv4 | IPv6 | Port Speed |
|---|---|---|---|---|
| Hong Kong | HKIX | 123.255.91.50 | 100 Mbps |
- 1
