AS1237 KISTI
AS1237 (KREONET-AS-KR-KR) is registered to KISTI in KR. It originates 213 prefixes in the global routing table.
212
IPv4 prefixes
1
IPv6 prefixes
299,776
IPv4 addresses
96%
RPKI valid
Registration
Who holds AS1237
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS1237
Handle
KREONET-AS-KR-KR
Organization
KISTI
Country
KR
ASPA
None published
Routing
What AS1237 announces
Prefixes originated by AS1237 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
212
IPv6 prefixes
1
IPv4 addresses
299,776 (1,171 /24s)
RPKI valid
205 96%
RPKI invalid
0
RPKI not found
8
ROAs naming AS1237
196
With an IRR route object
213 100%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (212)
134.75.0.0/16134.75.20.0/24134.75.52.0/23134.75.250.0/24147.47.120.0/21147.47.124.0/24147.47.125.0/24150.183.0.0/16150.183.11.0/24202.30.40.0/22202.30.60.0/22202.31.182.0/24203.230.0.0/24203.230.2.0/24203.230.3.0/24203.230.6.0/24203.230.7.0/24203.230.8.0/22203.230.16.0/23203.230.22.0/23203.230.24.0/21203.230.60.0/22203.230.64.0/21203.230.72.0/24203.230.73.0/24203.230.74.0/23203.230.76.0/22203.230.108.0/22203.230.116.0/23203.230.116.0/24203.230.120.0/24203.230.126.0/24203.233.155.0/24203.233.156.0/24203.241.40.0/21203.241.116.0/23203.241.118.0/24203.241.120.0/22203.241.164.0/24203.241.165.0/24203.241.169.0/24203.241.170.0/23203.241.172.0/23203.241.174.0/24203.247.64.0/24203.247.69.0/24203.247.73.0/24203.247.160.0/22203.247.164.0/23203.247.167.0/24203.247.170.0/23203.247.172.0/22203.247.176.0/22203.247.180.0/23203.247.184.0/24203.247.185.0/24203.247.187.0/24203.247.188.0/24203.247.190.0/23203.247.192.0/20203.247.216.0/22203.250.0.0/19203.250.96.0/21203.250.110.0/24203.250.112.0/21203.250.155.0/24203.250.156.0/22203.250.156.0/24203.250.160.0/21203.250.172.0/22203.250.176.0/21203.250.182.0/24203.250.183.0/24203.250.192.0/18203.253.96.0/20203.253.135.0/24203.253.136.0/22203.253.140.0/22203.253.224.0/23203.253.226.0/24203.253.230.0/23203.253.234.0/23203.253.236.0/24203.253.238.0/24203.254.40.0/24203.254.168.0/23203.254.175.0/24203.254.176.0/20203.254.179.0/24203.254.180.0/24203.254.181.0/24203.254.185.0/24203.254.186.0/24210.98.5.0/24210.98.6.0/23210.98.8.0/22210.98.12.0/24210.98.14.0/23210.98.24.0/23210.98.26.0/24210.98.28.0/22210.98.44.0/24210.98.47.0/24210.98.48.0/21210.98.48.0/24210.98.52.0/24210.98.54.0/24210.98.56.0/24210.98.59.0/24210.98.60.0/22210.107.144.0/24210.107.146.0/24210.107.152.0/21210.107.160.0/20210.107.248.0/22210.107.252.0/23210.107.254.0/24210.110.128.0/21210.110.143.0/24210.110.144.0/20
Show 92 more
210.110.182.0/24210.110.183.0/24210.110.184.0/24210.110.189.0/24210.110.190.0/24210.110.191.0/24210.110.192.0/22210.110.196.0/23210.110.198.0/24210.110.205.0/24210.110.206.0/23210.110.224.0/21210.110.232.0/24210.110.235.0/24210.110.236.0/22210.110.252.0/24210.110.254.0/23210.114.104.0/23210.114.106.0/24210.114.108.0/24210.117.192.0/24210.117.193.0/24210.117.194.0/24210.117.197.0/24210.117.198.0/24210.117.208.0/24210.117.209.0/24210.117.210.0/23210.117.211.0/24210.117.212.0/24210.117.214.0/23210.117.216.0/24210.117.217.0/24210.117.218.0/24210.117.219.0/24210.117.224.0/24210.117.225.0/24210.117.226.0/23210.117.228.0/23210.117.230.0/24210.117.236.0/24210.117.238.0/23210.117.240.0/21210.117.248.0/22210.117.252.0/23210.119.20.0/23210.119.36.0/23210.119.37.0/24210.119.40.0/21210.119.48.0/20210.119.64.0/19210.119.71.0/24210.119.72.0/24210.119.96.0/22210.119.100.0/23210.119.113.0/24210.119.114.0/23210.119.116.0/24210.119.122.0/23210.119.124.0/23210.119.126.0/24210.125.0.0/24210.125.32.0/20210.125.56.0/21210.125.64.0/21210.125.69.0/24210.125.84.0/23210.125.107.0/24210.218.192.0/24210.218.201.0/24210.218.202.0/23210.218.203.0/24210.218.204.0/23210.218.206.0/23210.218.208.0/21210.218.216.0/22210.219.32.0/24210.219.34.0/23210.219.36.0/22210.219.40.0/23210.219.42.0/24210.219.45.0/24210.219.47.0/24210.219.48.0/22210.219.52.0/24210.219.55.0/24210.219.56.0/21210.219.62.0/23210.219.62.0/24211.213.190.0/24218.233.7.0/24218.234.156.0/24
IPv6 (1)
RPKI valid RPKI invalid no ROA covers it
Upstreams
Who AS1237 buys transit from
Inferred from the AS paths in the RouteViews tables, refreshed every 4 hours, most-seen first. 3 upstreams.
Downstreams
Who buys transit from AS1237
41 downstreams, its customers.
AS9568 KIMM-AS-KR-KRAS18297 KJISTNET-AS-KR-KRAS7564 KAERINET-AS-KRAS9317 ITISNET-AS-KRAS131795 KIER-AS-KR-KRAS9949 HOSEO-AS-KRAS10052 KNU-AS-KRAS9488 SNU-AS-KR-KRAS24026 KFE-AS-KR-KRAS2385 KRIBB-AS-KR-KRAS17595 KINSNET-AS-KR-KRAS9489 KARINET-AS-KRAS17856 KONYANG-AS-KR-KRAS9637 KBSI-AS-KR-KRAS45379 UNIST-AS-KR-KRAS18034 KANGNUNG-AS-KR-KRAS18026 CHEJU-AS-KR-KRAS9275 KASI-AS-KR-KRAS7560 CHONBUK-AS-KRAS9695 KOEXP-AS-KR-KRAS1704 KAIST-SEOUL-AS-KR-KRAS1781 KAIST-DAEJEON-AS-KR-KRAS131830 IBS-AS-KR-KRAS38426 KREI-AS-KR-KRAS9686 SKKUNET-AS-KRAS18336 KIOM-AS-KR-KRAS152212 IRIS-AS-KR-KRAS10070 KRISS-AS-KRAS55616 DGIST-AS-KR-KRAS3784 POSTECH-AS-KR-KRAS55589 KITECH-AS-KR-KRAS23596 EDNSKR-KR-KRAS17866 KISTNET-AS-KR-KRAS10187 KISDI-AS-KR-KRAS10162 SNUH-AS-KR-KRAS131869 USTKREONET-AS-KR-KRAS152671 SPARCS-AS-KRAS10063 KMA-AS-KRAS18298 CNUNET-AS-KR-KRAS38696 KBRI-AS-KR-KR
Show 1 more
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| APNIC | KREONET-AS-KR | MNT-KRNIC-AP |
| RADB | KREONET-KR | MAINT-KREONET |
Route objects with origin AS1237: APNIC 2,134 · RADB 301 · NTTCOM 25
as-sets that list AS1237 (20)
AS-GLOBEINTERNET-CLIENTSAS-HANAROAS-HURRICANEAS-KINX-TRANSITAS-KORNETBGPAS-KORNETREAS-LEVEL3-ORIGINS-NAAS-NCAAS-SEJONGAS-SGGSAS-SHINBIROAS-SKBROADBANDAS-TRANSROUTE-SPECAS-XO-BAS1237:AS-KREONETAS17579:AS-KREONET2AS20965:AS-FROM-TEIN-TO-GEANTAS293:AS-FROM-SINGAREN-TO-ESNETAS399861:AS-ALLAS401561:AS-ALL