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ASN Lookup Tool
AS131490 CERT-Cor

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS131490
Organisation
CERNET Corporation
Name
CERT-Cor
Total IPv4 Addresses
512
Total IPv4 Prefixes
2
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#50,788 out of 79,042
Registry
Apnic
Registered Country
CN flagCN
Registered Country Name
China
Registered Date
Registration Last Change
2023-11-28
Receiving From

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

ASN
Organisation
AS4134
CN flagNo.31,Jin-rong Street Beijing 100032
AS4837
CN flagCHINA UNICOM China169 Backbone
AS9808
CN flagChina Mobile
AS24348
CN flagCERNET2 IX at Tsinghua University CERNET Center ..
IPv4 Active Prefixes

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

PrefixRange FromRange To
101.4.156.0/24101.4.156.0101.4.156.255
211.68.122.0/24211.68.122.0211.68.122.255
IPv6 Active Prefixes
PrefixRange FromRange To
240c:c0a1::/32240c:c0a1::240c:c0a1:ffff:ffff:ffff:ffff:ffff:ffff