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AS3661

ERX-CUHKNET

The Chinese University of Hong Kong

Registry

Authoritative registration data

AS number
3661
Name
ERX-CUHKNET
Organisation
The Chinese University of Hong Kong
Country
Flag of Hong Kong SAR China HK Hong Kong SAR China
RIR
APNIC
Registered
Source:asn:rdap retrieved

IPv4 prefixes

7

IPv6 prefixes

2

Total announced

9

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS3661
137.189.0.0/16 IPv4 /16 not checked
203.188.64.0/20 IPv4 /20 not checked
123.255.64.0/21 IPv4 /21 not checked
103.49.160.0/22 IPv4 /22 not checked
175.159.224.0/22 IPv4 /22 not checked
137.189.196.0/24 IPv4 /24 not checked
202.40.216.0/24 IPv4 /24 not checked
2405:3000::/32 IPv6 /32 RPKI not found
2001:ce0:3::/48 IPv6 /48 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS3661
Address families
HKIX: HKIX Peering LAN 100 Mbps IPv4

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS3661 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

7 networks seen before AS3661 in AS paths

Observed upstreams
Families
AS3662 HARNET 282 1,559
v4 v6
AS6939 HURRICANE 221 750
v4 v6
AS137207 JUCC-AS-AP 13 74
v4 v6
AS4635 HKIX-RS1 9 45
v4
AS4641 HKIX-AS-AP 4 10
v6
AS7713 telkomnet-as-ap 1 5
v4
AS45474 NEXUSGUARD-AS-AP 1 1
v4

No rows match “”.

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Observed downstreams

0 networks seen after AS3661 in AS paths

No downstreams observed

This AS was not seen carrying traffic towards another network.

Uncertain adjacencies

5 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 1 47
v4 v6
AS36236 NETACTUATE 1 7
v4 v6
AS49544 i3Dnet 1 7
v4 v6
AS18106 VIEWQWEST-SG-AP 1 5
v4
AS55720 GIGABIT-MY 1 5
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.