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ASN Lookup Tool
AS3661 ERX-CUHKNET

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3661
Organisation
The Chinese University of Hong Kong
Name
ERX-CUHKNET
Total IPv4 Addresses
73,984
Total IPv4 Prefixes
14
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,430 out of 79,086
Registry
Apnic
Registered Country
HK flagHK
Registered Country Name
Hong Kong
Registered Date
Registration Last Change
2022-12-05
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS7713
ID flagTelekomunikasi Indonesia (PT)
AS8359
RU flagMTS PJSC
AS6939
US flagHurricane Electric LLC
AS49544
NL flagi3D.net B.V
AS36236
US flagNetActuate, Inc
Showing 5 of 16
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

PrefixRange FromRange To
103.49.160.0/22103.49.160.0103.49.163.255
123.255.64.0/21123.255.64.0123.255.71.255
137.189.0.0/17137.189.0.0137.189.127.255
137.189.128.0/18137.189.128.0137.189.191.255
137.189.192.0/22137.189.192.0137.189.195.255
Showing 5 of 14
IPv6 Active Prefixes
PrefixRange FromRange To
2001:ce0:3::/482001:ce0:3::2001:ce0:3:ffff:ffff:ffff:ffff:ffff
2405:3000::/322405:3000::2405:3000:ffff:ffff:ffff:ffff:ffff:ffff