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ASN Lookup Tool
AS17621 CNCGROUP-SH

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS17621
Organisation
China Unicom Shanghai network
Name
CNCGROUP-SH
Total IPv4 Addresses
908394
Total IPv4 Prefixes
600
Total IPv6 Prefixes
663
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#401 out of 77,276
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
AS133512
CN flagCERNET New Technology Co., Ltd
AS4134
CN flagNo.31,Jin-rong Street Beijing 100032
AS4837
CN flagCHINA UNICOM China169 Backbone
AS3356
US flagLevel 3 Parent, LLC
Showing 5 of 50
Transit To

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

 

ASN
Organisation
AS63615
CN flagGE (China) Co.,Ltd 1 Hua Tuo Road ZhangJiang Hi-..
AS37963
CN flagHangzhou Alibaba Advertising Co.,Ltd. East Softw..
AS4812
CN flagChina Telecom (Group) Shanghai Telecom Company S..
AS56046
CN flagChina Mobile Communications Corporation
AS45102
US flagAlibaba (US) Technology Co., Ltd. East Software ..
Showing 5 of 71
IPv4 Active Prefixes

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

Prefix27.115.0.0/18
Range From27.115.0.0
Range To27.115.63.255
Prefix27.115.64.0/19
Range From27.115.64.0
Range To27.115.95.255
Prefix27.115.96.0/20
Range From27.115.96.0
Range To27.115.111.255
Prefix27.115.112.0/22
Range From27.115.112.0
Range To27.115.115.255
Prefix27.115.116.0/23
Range From27.115.116.0
Range To27.115.117.255
Showing 5 of 600
IPv6 Active Prefixes
Prefix2401:a140:1::/48
Range From2401:a140:1::
Range To2401:a140:1:ffff:ffff:ffff:ffff:ffff
Prefix2403:a200:a1ff::/48
Range From2403:a200:a1ff::
Range To2403:a200:a1ff:ffff:ffff:ffff:ffff:ffff
Prefix2405:1480:1000::/48
Range From2405:1480:1000::
Range To2405:1480:1000:ffff:ffff:ffff:ffff:ffff
Prefix2405:7040:6001::/48
Range From2405:7040:6001::
Range To2405:7040:6001:ffff:ffff:ffff:ffff:ffff
Prefix2408:8000:9000::/37
Range From2408:8000:9000::
Range To2408:8000:97ff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 663
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.