AS3661

The Chinese University Of Hong Kong

Name ERX-CUHKNET
Status
Active
Country Hong Kong
Website
cuhk.edu.hk
Type Education
Total Prefixes 11
Valid RPKI 0%
Est. Population 2.5K
Registry APNIC
Age
Allocated
Last Updated
All 11 prefixes displayed, sorted by visibility. Sourced from 10 BGP locations ago.
All BGP Prefixes Announced by AS3661
Prefix IP Count Visibility IRR RPKI Domain Organization
137.189.0.0/16 65,534 High:90% APNIC Unknown cuhk.edu.hk
The Chinese University of Hong Kong
203.188.64.0/20 4,094 High:90% APNIC Unknown cuhk.edu.hk
CUHK-HK
2405:3000::/32 - High:90% APNIC Unknown cuhk.edu.hk
The Chinese University of Hong Kong
123.255.64.0/21 2,046 High:90% APNIC Unknown cuhk.edu.hk
The Chinese University of Hong Kong
137.189.196.0/24 254 High:90% APNIC Unknown cuhk.edu.hk
The Chinese University of Hong Kong
103.49.160.0/22 1,022 High:89% APNIC Unknown cuhk.edu.hk
The Chinese University of Hong Kong
175.159.224.0/22 1,022 High:89% APNIC Unknown cuhk.edu.hk
CUHKNET
202.40.216.0/24 254 High:89% APNIC Unknown cuhk.edu.hk
CULIB-HK
2001:ce0:3::/48 - High:89% APNIC Unknown jucc.edu.hk
Joint Universities Computer Centre Limited
137.189.139.0/24 254 Unknown - Unknown -
 
-
137.189.90.0/24 254 Unknown - Unknown -
 
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Showing high level RPKI validity distribution per IP version and per prefix.

IPv4

Prefix Distrib. Valid Unknown Invalid Total Perc.
/16 RPKI status distribution for IPv4 prefix size /16 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the IPv4 prefix size /16. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /16 IPv4 prefixes are valid. 100% of all /16 IPv4 prefixes are unknown. 0% of all /16 IPv4 prefixes are invalid. 0 1 0 1 11%
/20 RPKI status distribution for IPv4 prefix size /20 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the IPv4 prefix size /20. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /20 IPv4 prefixes are valid. 100% of all /20 IPv4 prefixes are unknown. 0% of all /20 IPv4 prefixes are invalid. 0 1 0 1 11%
/21 RPKI status distribution for IPv4 prefix size /21 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the IPv4 prefix size /21. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /21 IPv4 prefixes are valid. 100% of all /21 IPv4 prefixes are unknown. 0% of all /21 IPv4 prefixes are invalid. 0 1 0 1 11%
/22 RPKI status distribution for IPv4 prefix size /22 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the IPv4 prefix size /22. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /22 IPv4 prefixes are valid. 100% of all /22 IPv4 prefixes are unknown. 0% of all /22 IPv4 prefixes are invalid. 0 2 0 2 22%
/24 RPKI status distribution for IPv4 prefix size /24 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the IPv4 prefix size /24. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /24 IPv4 prefixes are valid. 100% of all /24 IPv4 prefixes are unknown. 0% of all /24 IPv4 prefixes are invalid. 0 4 0 4 44%
Total RPKI status distribution for all IPv4 prefix sizes This stacked bar chart represents the RPKI status distribution for all the IPv4 prefix size. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all IPv4 prefixes are valid. 100% of all IPv4 prefixes are unknown. 0% of all IPv4 prefixes are invalid. 0 9 0 9 100%

IPv6

Prefix Distrib. Valid Unknown Invalid Total Perc.
/32 RPKI status distribution for Ipv6 prefix size /32 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the Ipv6 prefix size /32. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /32 Ipv6 prefixes are valid. 100% of all /32 Ipv6 prefixes are unknown. 0% of all /32 Ipv6 prefixes are invalid. 0 1 0 1 50%
/48 RPKI status distribution for Ipv6 prefix size /48 Valid: 0% Unknown: 100% Invalid: 0% This stacked bar chart represents the RPKI status distribution for the Ipv6 prefix size /48. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all /48 Ipv6 prefixes are valid. 100% of all /48 Ipv6 prefixes are unknown. 0% of all /48 Ipv6 prefixes are invalid. 0 1 0 1 50%
Total RPKI status distribution for all Ipv6 prefix sizes This stacked bar chart represents the RPKI status distribution for all the Ipv6 prefix size. Possible values for an RPKI status are: Valid, Invalid, Unknown. 0% of all Ipv6 prefixes are valid. 100% of all Ipv6 prefixes are unkown. 0% of all Ipv6 prefixes are invalid. 0 2 0 2 100%

ABOUTResource Public Key Infrastructure is a specialized public key infrastructure framework to improve security for the Internet's BGP routing infrastructure. RPKI provides a way to connect Internet number resource information (such as ASN and IP addresses) to a trust anchor. Wikipedia ↗︎

All ASN sorted by their number. Sourced from 10 BGP locations.

Upstreams — Any direct adjacent ASN in an AS path sequence that leads to a tier 1 ASN.

All peers ASN for AS3661
ASN Organization
AS3662 Joint Universities Computer Centre Limited
AS4641 The Hong Kong Internet Exchange Limited
AS6939 Hurricane Electric LLC

Downstreams — Any direct adjacent ASN in an AS path sequence that adds one-hop away from a tier 1 ASN.

No downstream connectivity detected for AS3661 at this time. Next update in ~3 hours.

Peers — Any direct adjacent ASN, can include upstreams, downstreams or tier 1 ASN.

All peers ASN for AS3661
ASN Organization
AS3662 Joint Universities Computer Centre Limited
AS4635 The Hong Kong Internet Exchange Limited
AS4641 The Hong Kong Internet Exchange Limited
AS6939 Hurricane Electric LLC
AS7660 APAN-JP
AS7713 Telekomunikasi Indonesia (PT)
AS9002 RETN Limited
AS18106 Viewqwest Pte Ltd
AS24482 SG.GS
AS39120 RIPE-NCC-END-MNT
AS41095 IPTP LTD
AS49544 RIPE-NCC-END-MNT
AS58511 Anycast Holdings Pty Ltd
AS132337 AXCLUSIVE PTE. LTD.
AS137207 Joint Universities Computer Centre Limited
All 1 Internet Exchange Points displayed, sorted by name. Sourced from PeeringDB ago. VIEW PEERINGDB
Internet Exchanges for AS3661
Name Location Addresses Link RS Peer
HKIX
Hong Kong Internet Exchange
Hong Kong
123.255.91.50
No IPv6 		0 Gbps
Ethernet 		NO

ABOUTInternet Exchange Points (IXes or IXPs) are physical places where infrastructure companies interconnect with each other to exchange data destined for their respective networks. These locations are critical for companies to shorten their connection paths to other network participant, this allows for reduced round-trip time and low latency. Wikipedia ↗︎

Registrant

AS3661 Registrant Contact Details
Handle ORG-CUOH1-AP ↗︎
Type Org
Country -
Name The Chinese University of Hong Kong
Email [email protected]
Phone +852-3943-8848
Address Information Technology Service Centre G/F., Pi-Chiu Building MAP ↗︎

Under the same Registrant

No other ASN registered under the same Registrant handle (ORG-CUOH1-AP).

Administrator

AS3661 Administrator Contact Details
Handle NA17-AP ↗︎
Type Individual
Country Hong Kong
Name Network Administration Contact
Email [email protected]
Phone +852-3943-8830
Address Information Technology Services Centre, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong MAP ↗︎

Under the same Administrator

No other ASN registered under the same Admin handle (NA17-AP).

Abuse

AS3661 Abuse Contact Details
Handle IRT-CUHKNET-HK ↗︎
Type Group
Country Hong Kong
Name IRT-CUHKNET-HK
Email [email protected]
Phone -
Address Information Technology Services Centre, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong MAP ↗︎

Under the same Abuse handle

No other ASN registered under the same Abuse handle (IRT-CUHKNET-HK).

Technical

AS3661 Tech Contact Details
Handle NT27-AP ↗︎
Type Individual
Country -
Name Network Technical Contact
Email [email protected]
Phone +852-3943-8830
Address Information Technology Services Centre, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong MAP ↗︎

Under the same Tech handle

No other ASN registered under the same Tech handle (NT27-AP).