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ASN Lookup Tool
AS138421 CU-CN-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS138421
Organisation
China Unicom
Name
CU-CN-AS
Total IPv4 Addresses
163075
Total IPv4 Prefixes
239
Total IPv6 Prefixes
31
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,289 out of 77,447
Registry
Apnic
Registered Country
CN flag CN
Registered Country Name
China
Registered Date
NA
Registration Last Change
2023-10-21
Receiving From

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

ASN
Organisation
AS4635
HK flagThe Hong Kong Internet Exchange Limited
AS41805
IQ flagSAWAD LAND for Information Technology Ltd
AS4134
CN flagNo.31,Jin-rong Street Beijing 100032
AS4837
CN flagCHINA UNICOM China169 Backbone
AS4766
KR flagKorea Telecom
Showing 5 of 56
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS55990
CN flagHuawei Cloud Service data center
AS24400
CN flagChina Mobile
AS136907
HK flagHUAWEI INTERNATIONAL PTE. LTD.
AS4811
CN flagChina Telecom (Group) Shanghai Telecom Company S..
AS65100
WORLD flagPrivate Use AS
Showing 5 of 7
IPv4 Active Prefixes

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

Prefix1.1.8.0/24
Range From1.1.8.0
Range To1.1.8.255
Prefix43.240.124.0/24
Range From43.240.124.0
Range To43.240.124.255
Prefix43.240.125.0/24
Range From43.240.125.0
Range To43.240.125.255
Prefix43.240.127.0/24
Range From43.240.127.0
Range To43.240.127.255
Prefix43.240.128.0/23
Range From43.240.128.0
Range To43.240.129.255
Showing 5 of 239
IPv6 Active Prefixes
Prefix2404:c940::/48
Range From2404:c940::
Range To2404:c940:0:ffff:ffff:ffff:ffff:ffff
Prefix2408:8000:9fff::/48
Range From2408:8000:9fff::
Range To2408:8000:9fff:ffff:ffff:ffff:ffff:ffff
Prefix2408:80f1::/44
Range From2408:80f1::
Range To2408:80f1:f:ffff:ffff:ffff:ffff:ffff
Prefix2408:80f1:40::/44
Range From2408:80f1:40::
Range To2408:80f1:4f:ffff:ffff:ffff:ffff:ffff
Prefix2408:80f1:70::/44
Range From2408:80f1:70::
Range To2408:80f1:7f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 31
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.