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ASN Lookup Tool
AS1237 KREONET-AS-KR

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS1237
Organisation
KISTI
Name
KREONET-AS-KR
Total IPv4 Addresses
287478
Total IPv4 Prefixes
334
Total IPv6 Prefixes
104
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#881 out of 76,372
Registry
Apnic
Registered Country
KR flag KR
Registered Country Name
Korea (the Republic of)
Registered Date
NA
Registration Last Change
2020-09-11
Receiving From

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

ASN
Organisation
AS4766
KR flagKorea Telecom
AS174
US flagCogent Communications
AS17579
KR flagKISTI
Transit To

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

 

ASN
Organisation
AS20940
NL flagAkamai International B.V.
AS9488
KR flagSeoul National University
AS1781
KR flagKorea Advanced Institute of Science and Technolo..
AS9686
KR flagSungKyunKwan University (SKKU)
AS7564
KR flagKorea Atomic Energy Research Institute
Showing 5 of 43
IPv4 Active Prefixes

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

Prefix134.75.0.0/21
Range From134.75.0.0
Range To134.75.7.255
Prefix134.75.8.0/22
Range From134.75.8.0
Range To134.75.11.255
Prefix134.75.12.0/23
Range From134.75.12.0
Range To134.75.13.255
Prefix134.75.14.0/24
Range From134.75.14.0
Range To134.75.14.255
Prefix134.75.17.0/24
Range From134.75.17.0
Range To134.75.17.255
Showing 5 of 334
IPv6 Active Prefixes
Prefix2001:2b8:bc::/48
Range From2001:2b8:bc::
Range To2001:2b8:bc:ffff:ffff:ffff:ffff:ffff
Prefix2001:2b8:e6::/48
Range From2001:2b8:e6::
Range To2001:2b8:e6:ffff:ffff:ffff:ffff:ffff
Prefix2001:320::/44
Range From2001:320::
Range To2001:320:f:ffff:ffff:ffff:ffff:ffff
Prefix2001:320:10::/46
Range From2001:320:10::
Range To2001:320:13:ffff:ffff:ffff:ffff:ffff
Prefix2001:320:14::/48
Range From2001:320:14::
Range To2001:320:14:ffff:ffff:ffff:ffff:ffff
Showing 5 of 104
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.